First Mining Gold (FFMGF) 40-F 2 Apr 19 2018 FY Annual report (Canada) Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Dec. 31, 2018shares
Document And Entity Information
Entity Registrant Name	First Mining Gold Corp.
Entity Central Index Key	0001641229
Document Type	40-F
Document Period End Date	Dec. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Is Entity's Reporting Status Current?	Yes
Is Entity Emerging Growth Company?	true
Entity Ex Transition Period	false
Entity Common Stock, Shares Outstanding	558,316,916
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2018

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL POSITION - CAD ($)	Dec. 31, 2018	Dec. 31, 2017
Current
Cash and cash equivalents	$ 5,115	$ 15,400
Accounts and other receivables	149	435
Prepaid expenditures	257	372
Marketable securities	2,597	4,277
Total current assets	8,118	20,484
Non-current
Mineral properties	244,129	239,871
Mineral property investments	4,417	4,417
Property and equipment	662	772
Reclamation deposit	116	116
Other receivables	90	77
Total non-current assets	249,414	245,253
TOTAL ASSETS	257,532	265,737
Current
Accounts payable and accrued liabilities	582	1,083
Total liabilities	582	1,083
SHAREHOLDERS' EQUITY
Share capital	275,068	272,501
Warrant and share-based payment reserve	30,230	27,607
Accumulated other comprehensive loss	(5,292)	(4,043)
Accumulated deficit	(43,056)	(31,411)
Total shareholders' equity	256,950	264,654
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 257,532	$ 265,737

CONSOLIDATED STATEMENTS OF NET

CONSOLIDATED STATEMENTS OF NET LOSS AND COMPREHENSIVE LOSS - CAD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
EXPENDITURES
General and administration	$ 4,692	$ 5,910
Exploration and evaluation	764	1,758
Investor relations and marketing communications	1,634	3,284
Corporate development and due diligence	505	340
Write-down of mineral properties (Note 6)	4,181	0
Loss from operational activities	(11,776)	(11,292)
OTHER ITEMS
Foreign exchange loss	(5)	(147)
Other expenses	(54)	(89)
Interest and other income	190	344
Net loss for the year	(11,645)	(11,184)
Items that will not be reclassified to net (loss) or income:
Marketable securities fair value loss	(1,680)	(3,399)
Items that may be reclassified to net (loss) or income:
Currency translation adjustment	431	(280)
Other comprehensive loss	(1,249)	(3,679)
Total comprehensive loss for the year	$ (12,894)	$ (14,863)
Basic and diluted loss per share	$ (0.02)	$ (0.02)
Weighted average number of shares outstanding - Basic and Diluted	557,470,696	547,635,558

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - CAD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Net loss for the year	$ (11,645)	$ (11,184)
Adjustments for:
Depreciation	204	295
Unrealized foreign exchange loss	15	103
Share-based payments	3,032	5,497
Accrued interest receivable and other income	9	99
Accrued interest payable and other expenses	43	88
Write-down of mineral properties	4,181	0
Operating cash flows before movements in working capital	(4,161)	(5,102)
Changes in non-cash working capital items:
Decrease (increase) in accounts and other receivables	259	(168)
Decrease in prepaid expenditures	63	58
Increase (decrease) in accounts payables and accrued liabilities	58	(101)
Total cash used in operating activities	(3,781)	(5,313)
Cash flows from investing activities
Property and equipment purchases	(93)	(468)
Mineral property expenditures	(7,402)	(11,996)
Other receivables or payments recovered	0	877
Purchase of marketable securities	0	(1,829)
Cash expended in acquisitions	0	(310)
Total cash used in investing activities	(7,495)	(13,726)
Cash flows from financing activities
Proceeds from exercise of warrants and stock options	989	2,022
Repayment of debenture liability	0	(200)
Repayments of loans payable	0	(461)
Total cash provided by financing activities	989	1,361
Foreign exchange effect on cash	2	(79)
Change in cash and cash equivalents	(10,285)	(17,757)
Cash and cash equivalents, beginning	15,400	33,157
Cash and cash equivalents, ending	5,115	15,400
Cash and cash equivalents	$ 5,115	$ 15,400

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - CAD ($)	Capital Stock	Warrant Reserve	Share-based Payment Reserve	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total
Beginning balance, shares at Dec. 31, 2016	539,439,736
Beginning balance, amount at Dec. 31, 2016	$ 262,876	$ 15,361	$ 8,582	$ 708	$ (21,299)	$ 266,228
Impact of adopting IFRS 9				(1,072)	1,072
Beginning balance (restated), shares	539,439,736
Beginning balance (restated), amount	$ 262,876	15,361	8,582	(364)	(20,227)	266,228
Shares issued on acquisition of mineral properties, shares	3,000,000
Shares issued on acquisition of mineral properties, amount	$ 2,613					2,613
Shares issued on settlement of debenture liability, shares	4,700,000
Shares issued on settlement of debenture liability, amount	$ 3,102					3,102
Exercise of options, shares	4,162,617
Exercise of options, amount	$ 3,315		1,534			1,781
Exercise of warrants, shares	1,245,263
Exercise of warrants, amount	$ 595	354				241
Share-based payments			5,552			5,552
Loss for the year					(11,184)	(11,184)
Other comprehensive loss					(3,679)	(3,679)
Ending balance, shares at Dec. 31, 2017	552,547,616
Ending balance, amount at Dec. 31, 2017	$ 272,501	15,007	12,600	4,043	(31,411)	264,654
Exercise of options, shares	638,000
Exercise of options, amount	$ 276		171			105
Exercise of warrants, shares	5,131,300
Exercise of warrants, amount	$ 2,291	1,407				884
Options forfeited (Note 11(d))			39			39
Share-based payments			4,240			4,240
Loss for the year					(11,645)	(11,645)
Other comprehensive loss				1,249		(1,249)
Ending balance, shares at Dec. 31, 2018	558,316,916
Ending balance, amount at Dec. 31, 2018	$ 275,068	$ 13,600	$ 16,630	$ 5,292	$ 43,056	$ 256,950

NATURE OF OPERATIONS

NATURE OF OPERATIONS	12 Months Ended
	Dec. 31, 2018
Nature Of Operations
NATURE OF OPERATIONS	First Mining Gold Corp. (formerly First Mining Finance Corp.) (the “Company” or “First Mining”) was incorporated in Canada on April 4, 2005. The Company changed its name to First Mining Gold Corp. in January 2018. The Company is an emerging mineral development company with a diversified portfolio of gold projects in North America. The Company’s vision is to advance its materials assets towards a construction decision and, ultimately, to production, and we may acquire additional mineral assets in the future. First Mining is a public company which is listed on the Toronto Stock Exchange (the “TSX”) under the symbol “FF”, on the OTCQX under the symbol “FFMGF”, and on the Frankfurt Stock Exchange under the symbol “FMG”. The Company’s head office and principal address is located at Suite 1800 – 925 West Georgia Street, Vancouver, British Columbia, Canada, V6C 3L2.

BASIS OF PRESENTATION

BASIS OF PRESENTATION	12 Months Ended
	Dec. 31, 2018
Basis Of Presentation
BASIS OF PRESENTATION	These consolidated annual financial statements have been prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board, effective for the Company’s reporting for the year ended December 31, 2018. These consolidated annual financial statements have been prepared on a historical cost basis, except for financial instruments classified as fair value through profit and loss or fair value through other comprehensive income (loss), which are stated at their fair value. The consolidated annual financial statements are presented in thousands of Canadian dollars, unless otherwise noted. The functional currency of the Company and its Canadian subsidiaries is the Canadian dollar while the functional currency of the Company’s non-Canadian subsidiaries is the US dollar. The accounts of subsidiaries are prepared for the same reporting period as the parent company, using consistent accounting policies. Inter-company transactions, balances and unrealized gains or losses on transactions are eliminated. The Company’s material subsidiaries are as follows: Name Place of Incorporation Ownership Percentage First Mining Gold Corp. Canada Parent Gold Canyon Resources Inc. (“Gold Canyon”) Canada 100% Goldlund Resources Inc. (“Goldlund”) Canada 100% Coastal Gold Corp. (“Coastal Gold”) Canada 100% Cameron Gold Operations Ltd. (“Cameron Gold”) Canada 100% PC Gold Inc. (“PC Gold”) Canada 100% Clifton Star Resources Inc. (“Clifton”) Canada 100% Minera Teocuitla, S.A. de C.V. (“Teocuitla”) Mexico 100% These consolidated annual financial statements were approved by the Board of Directors on March 28, 2019.

ACCOUNTING POLICIES

ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2018
Accounting Policies
ACCOUNTING POLICIES	These consolidated annual financial statements have been prepared using the following accounting policies: a) Financial Instruments (i) Classification The Company classifies its financial instruments in the following categories: at fair value through profit and loss (“FVTPL”), at fair value through other comprehensive income (loss) (“FVTOCI”) or at amortized cost. The Company determines the classification of financial assets at initial recognition. The classification of debt instruments is driven by the Company’s business model for managing the financial assets and their contractual cash flow characteristics. Equity instruments that are held for trading are classified as FVTPL. For other equity instruments, on the day of acquisition the Company can make an irrevocable election (on an instrument-by-instrument basis) to designate them as at FVTOCI. Financial liabilities are measured at amortized cost, unless they are required to be measured at FVTPL (such as instruments held for trading or derivatives) or the Company has opted to measure them at FVTPL. Upon the adoption of IFRS 9, the Company made an irrevocable election to classify marketable securities and mineral property investments (First Mining’s 10% equity interest in a group of privately held companies that own the Duparquet Gold Project) as FVTOCI given they are not held for trading and are instead held as strategic investments that align with the Company’s corporate objectives. (ii) Measurement Financial assets at FVTOCI Elected investments in equity instruments at FVTOCI are initially recognized at fair value plus transaction costs. Subsequently they are measured at fair value, with gains and losses recognized in other comprehensive income (loss). Financial assets and liabilities at amortized cost Financial assets and liabilities at amortized cost are initially recognized at fair value plus or minus transaction costs, respectively, and subsequently carried at amortized cost less any impairment. Financial assets and liabilities at FVTPL Financial assets and liabilities carried at FVTPL are initially recorded at fair value and transaction costs are expensed in the consolidated statements of net (loss) income. Realized and unrealized gains and losses arising from changes in the fair value of the financial assets and liabilities held at FVTPL are included in the consolidated statements of net (loss) income in the period in which they arise. Where management has opted to recognize a financial liability at FVTPL, any changes associated with the Company’s own credit risk will be recognized in other comprehensive income (loss). (iii) Impairment of financial assets at amortized cost The Company recognizes a loss allowance for expected credit losses on financial assets that are measured at amortized cost. At each reporting date, the Company measures the loss allowance for the financial asset at an amount equal to the lifetime expected credit losses if the credit risk on the financial asset has increased significantly since initial recognition. If at the reporting date, the financial asset has not increased significantly since initial recognition, the Company measures the loss allowance for the financial asset at an amount equal to the twelve month expected credit losses. The Company shall recognize in the consolidated statements of net (loss) income, as an impairment gain or loss, the amount of expected credit losses (or reversal) that is required to adjust the loss allowance at the reporting date to the amount that is required to be recognized. (iv) Derecognition Financial assets The Company derecognizes financial assets only when the contractual rights to cash flows from the financial assets expire, or when it transfers the financial assets and substantially all of the associated risks and rewards of ownership to another entity. Gains and losses on derecognition are generally recognized in the consolidated statements of net (loss) income. However, gains and losses on derecognition of financial assets classified as FVTOCI remain within accumulated other comprehensive income (loss). Financial liabilities The Company derecognizes financial liabilities only when its obligations under the financial liabilities are discharged, cancelled or expired. Generally, the difference between the carrying amount of the financial liability derecognized and the consideration paid and payable, including any non-cash assets transferred or liabilities assumed, is recognized in the consolidated statements of net (loss) income. b) Cash and Cash Equivalents Cash and cash equivalents include cash and short-term deposits that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value. The carrying amounts approximate fair value due to the short-term maturities of these instruments. c) Mineral Properties Once the legal right to explore a property has been acquired, costs directly related to exploration and evaluation expenditures are recognized and capitalized, in addition to the acquisition costs. These direct expenditures include such costs as mineral concession taxes, option payments, wages and salaries, surveying, geological consulting and laboratory, field supplies, travel and administration. Costs not directly attributable to exploration and evaluation activities, including general administrative overhead costs, are expensed in the period in which they are incurred. The Company may occasionally enter into option or royalty arrangements, whereby the Company will transfer part of its mineral properties, as consideration, for an agreement by the transferee to meet certain exploration and evaluation expenditures which would have otherwise been undertaken by the Company. The Company does not record any expenditures made by the optionee on its behalf. Any cash consideration received from the agreement is credited against the costs previously capitalized to the mineral interest given up by the Company, with any excess cash accounted for as a gain on disposal. The Company assesses exploration and evaluation assets for impairment when facts and circumstances suggest that the carrying amount of an asset may exceed its recoverable amount. The recoverable amount is the higher of the asset’s fair value less costs to sell and value in use. Once the technical feasibility and commercial viability of extracting the mineral resource has been determined, the property is considered to be a mine under development and is classified as ‘mines under construction’. Exploration and evaluation assets are also tested for impairment before the assets are transferred to development properties. d) Impairment of Non-Financial Assets Mineral properties are subject to impairment tests whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. Where the carrying value of an asset exceeds its recoverable amount, which is the higher of value in use and fair value less costs to sell, the asset is written down accordingly. An impairment loss is charged to profit or loss. For the purposes of assessing impairment, assets are grouped at the lowest levels for which there are largely independent cash flows (cash-generating units). As a result, some assets may be tested individually for impairment and some are tested at a cash-generating unit level. Impairment reviews for mineral properties are carried out on a property by property basis, with each property representing a single cash generating unit. An impairment review is undertaken when indicators of impairment arise, but typically when one of the following circumstances apply: ● The right to explore the area has expired or will expire in the near future with no expectation of renewal; ● Substantive expenditure on further exploration for and evaluation of mineral resources in the area is neither planned nor budgeted; ● No commercially viable deposits have been discovered, and the decision had been made to discontinue exploration in the area; and ● Sufficient work has been performed to indicate that the carrying amount of the expenditure carried as an asset will not be fully recovered. e) Property and equipment Property and equipment are recorded at cost less accumulated depreciation and accumulated impairment losses. The initial cost of an asset comprises its purchase price or construction cost, any costs directly attributable to bringing the asset into operation and, where applicable, the initial estimation of any asset retirement obligation. The purchase price or construction cost is the aggregate amount paid and the fair value of any other consideration given to acquire the asset. Depreciation is recognized in profit or loss on a straight-line basis over the following estimated useful lives: Buildings 10 years Machinery and equipment 5 years Furniture and fixtures 5 years Vehicles 5 years Computer equipment 3 years Computer software 1 year Depreciation methods, useful lives and residual values are reviewed at each financial year-end and adjusted if appropriate. f) Environmental Reclamation Provision The Company is subject to various government laws and regulations relating to environmental disturbances caused by exploration and evaluation activities. The present value of the estimated costs of legal and constructive obligations required to restore the exploration sites is recognized in the year in which the obligation is incurred. The nature of the reclamation activities includes restoration and revegetation of the affected exploration sites. When a liability is recognized, the present value of the estimated costs is capitalized by increasing the carrying amount of the related exploration properties. Over time, the discounted liability is increased for the changes in present value based on current market discount rates and liability specific risks. Additional environment disturbances or changes in reclamation costs will be recognized as additions to the corresponding assets and reclamation provision in the year in which they occur. g) Income Taxes Income tax expense comprises current and deferred tax. Current tax and deferred tax are recognized in net income except to the extent that it relates to a business combination or items recognized directly in equity or in other comprehensive loss. Current income taxes are recognized for the estimated income taxes payable or receivable on taxable income or loss for the current year and any adjustment to income taxes payable in respect of previous years. Current income taxes are determined using tax rates and tax laws that have been enacted or substantively enacted by the year-end date. Deferred tax assets and liabilities are recognized where the carrying amount of an asset or liability differs from its tax base, except for taxable temporary differences arising on the initial recognition of goodwill and temporary differences arising on the initial recognition of an asset or liability in a transaction which is not a business combination and at the time of the transaction affects neither accounting nor taxable profit or loss. Recognition of deferred tax assets for unused tax losses, tax credits and deductible temporary differences is restricted to those instances where it is probable that future taxable profit will be available against which the deferred tax asset can be utilized. At the end of each reporting year the Company reassesses unrecognized deferred tax assets. The Company recognizes a previously unrecognized deferred tax asset to the extent that it has become probable that future taxable profit will allow the deferred tax asset to be recovered. h) Share Capital Equity instruments are contracts that give a residual interest in the net assets of the Company. Financial instruments issued by the Company are classified as equity only to the extent that they do not meet the definition of a financial liability or financial asset. The Company’s common shares are classified as equity instruments. Incremental costs directly attributable to the issue of new shares or options are shown in equity as a deduction, net of tax, from the proceeds. Consideration received from a private placement financing involving units consisting of common shares and warrants is allocated to the share capital and the warrant reserve accounts using the relative fair value method. As prescribed by this method, the consideration is allocated to the value of share capital and warrant reserve on a pro rata basis. The share capital is valued at the closing share price of the Company on the completion date of the private placement and the warrant reserve is valued using the Black-Scholes option pricing model. i) Loss per Share Basic loss per share is calculated by dividing the net loss for the year by the weighted average number of shares outstanding during the year. Diluted loss per share is calculated using the treasury stock method. Under the treasury stock method, the weighted average number of shares outstanding used in the calculation of diluted income or loss per share assumes that the deemed proceeds received from the exercise of stock options, share purchase warrants and their equivalents would be used to repurchase common shares of the Company at the average market price during the year, if they are determined to have a dilutive effect. Existing stock options and share purchase warrants have not been included in the current year computation of diluted loss per share as to do so would be anti-dilutive. Accordingly, the current year basic and diluted losses per share are the same. j) Share-based Payments Where equity-settled share options are granted to employees, the fair value of the options at the date of grant, measured using the Black-Scholes option pricing model, is charged to the statement of comprehensive loss or capitalized to mineral properties over the vesting period using the graded vesting method. Performance vesting conditions are taken into account by adjusting the number of equity instruments expected to vest at each reporting date so that, ultimately, the cumulative amount recognized over the vesting period is based on the number of options that eventually vest. Charges for options that are forfeited before vesting are reversed from share-based payment reserve. Where equity-settled share options are granted to non-employees, they are measured at the fair value of the goods or services received. However, if the value of goods or services received in exchange for the options cannot be reliably estimated, the options are measured using the Black-Scholes option pricing model. All equity-settled share-based payments are reflected in share-based payment reserve, until exercised. Upon exercise, shares are issued from treasury and the amount reflected in share-based payment reserve is credited to share capital, together with any consideration received. k) Segment Reporting Operating segments are reported in a manner consistent with the internal reporting provided to the chief operating decision-maker. The chief operating decision-maker is responsible for allocating resources and assessing performance of the operating segment. l) Accounting Policy Judgments and Estimation Uncertainty The preparation of financial statements requires the use of accounting estimates. It also requires management to exercise judgment in the process of applying its accounting policies. Estimates and judgments are regularly evaluated and are based on management’s experience and other factors, including expectations about future events that are believed to be reasonable under the circumstances. The use of judgments, estimates and assumptions affects the application of accounting policies and the reported amounts of assets and liabilities, income and expense. Actual results may differ from these estimates. The following discusses the accounting judgments and estimates that the Company has made in the preparation of the audited consolidated financial statements for the year ended December 31, 2018, which could result in a material adjustment to the carrying amounts of assets and liabilities: (i) Accounting policy judgements Impairment of Mineral Properties In accordance with the Company’s accounting policy for its mineral properties, exploration and evaluation expenditures on mineral properties are capitalized. There is no certainty that the expenditures made by the Company in the exploration of its property interests will result in discoveries of commercial quantities of minerals. The Company applies judgment to determine whether indicators of impairment exist for these capitalized costs. Management uses several criteria in making this assessment, including the period for which the Company has the right to explore, expected renewals of exploration rights, whether substantive expenditures on further exploration and evaluation of mineral properties are budgeted, and evaluation of the results of exploration and evaluation activities up to the reporting date. (ii) Estimation Uncertainty Determining Amount and Timing of Reclamation Provisions A reclamation provision represents the present value of estimated future costs for the reclamation of the Company’s mineral properties. These estimates include assumptions as to the future activities, cost of services, timing of the reclamation work to be performed, inflation rates, exchange rates and interest rates. The actual cost to reclaim a mine or exploration property may vary from the estimated amounts because there are uncertainties in factors used to estimate the cost and potential changes in regulations or laws governing the reclamation of a mineral property. Management periodically reviews the reclamation requirements and adjusts the liability as new information becomes available and will assess the impact of new regulations and laws as they are enacted. Valuation of Mineral Property Investments The Company makes estimates and assumptions that affect the carrying value of its mineral property investments, which are comprised of equity interests in the shares of private companies. These financial assets are designated as fair value through other comprehensive income (loss), and management needs to determine the fair value as at each period end. As there is no observable market data which can be used to determine this fair value, management uses property specific and market based information to determine whether a significant change in the fair value of this investment may have occurred. Factors that are considered include a change in the performance of the investee, a change in the market for the investee’s future products, a change in the performance of comparable entities, a change in the economic environment, or evidence from external transactions in the investee’s equity. Changes to these variables could result in the fair value being less than or greater than the amount recorded. m) Accounting Standards Issued but Not Yet Applied The following are accounting standards anticipated to be effective January 1, 2019 or later: i) IFRS 16 Leases IFRS 16 replaces IAS 17 Leases The standard provides a single lessee accounting model, requiring lessees to recognize assets and liabilities for all leases unless the lease term is 12 months or less or the underlying asset has a low value. Application of the standard is mandatory for annual periods beginning on or after January 1, 2019. IFRS 16 will result in an increase in assets and liabilities. Management expects an increase in depreciation expense and also an increase in cash flow from operating activities as lease payments will be recorded as financing outflows in the consolidated statements of cash flows. The Company does not expect these impacts to be material. The Company will adopt IFRS 16 on its effective date of January 1, 2019. There are no other IFRS or International Financial Reporting Interpretations Committee interpretations that are not yet effective that would be expected to have a material impact on the Company’s consolidated financial statements.

ACCOUNTS AND OTHER RECEIVABLES

ACCOUNTS AND OTHER RECEIVABLES	12 Months Ended
	Dec. 31, 2018
Trade and other receivables [abstract]
ACCOUNTS AND OTHER RECEIVABLES	Category December 31, 2018 December 31, 2017 Current GST and HST receivables $ 71 $ 348 Quebec mining tax receivables 61 61 Other receivables 17 26 Total current accounts and other receivables $ 149 $ 435 Non-current Mexican VAT receivable 90 77 Total accounts and other receivables $ 239 $ 512

MARKETABLE SECURITIES

MARKETABLE SECURITIES	12 Months Ended
	Dec. 31, 2018
Available-for-sale financial assets [abstract]
MARKETABLE SECURITIES	The movements in marketable securities during the years ended December 31, 2018 and 2017 are summarized as follows: Silver One Resources Inc. Other Marketable Securities Total Balance as at December 31, 2017 $ 2,280 $ 1,997 $ 4,277 Loss recorded in other comprehensive loss (1,290 ) (390 ) (1,680 ) Balance as at December 31, 2018 $ 990 $ 1,607 $ 2,597 Silver One Resources Inc. Other Marketable Securities Total Balance as at December 31, 2016 $ 5,280 $ 567 $ 5,847 Purchases - 1,829 1,829 Loss recorded in other comprehensive loss (3,000 ) (399 ) (3,399 ) Balance as at December 31, 2017 $ 2,280 $ 1,997 $ 4,277 The Company holds marketable securities as strategic investments and has less than a 10% equity interest in each of the investees.

MINERAL PROPERTIES

MINERAL PROPERTIES	12 Months Ended
	Dec. 31, 2018
Mineral Properties
MINERAL PROPERTIES	As at December 31, 2018 and December 31, 2017, the Company has capitalized the following acquisition, exploration and evaluation costs on its mineral properties: Balance December 31, 2017 Acquisition Concessions, taxes, and royalties Salaries and share-based payments Drilling, exploration, and technical consulting Assaying, field supplies, and environmental Travel and other expenditures Total expenditures Currency translation adjustments Disposal or write-down of mineral properties Balance December 31, 2018 Springpole $ 70,398 $ - $ 237 $ 1,048 $ 657 $ 479 $ 559 $ 2,980 $ - $ - $ 73,378 Goldlund 93,807 - 2 928 1,045 596 226 2,797 - - 96,604 Hope Brook 18,665 - 123 459 136 116 82 916 - - 19,581 Cameron 26,676 - 39 193 57 39 28 356 - - 27,032 Pickle Crow 16,496 - 50 92 58 36 22 258 - - 16,754 Duquesne 5,053 - 6 4 27 - 1 38 - - 5,091 Pitt 2,080 - - - 1 - 1 2 - - 2,082 Others(1) 2,515 - 2 10 21 9 2 44 - - 2,559 Canada Total $ 235,690 $ - $ 459 $ 2,734 $ 2,002 $ 1,275 $ 921 $ 7,391 $ - $ - $ 243,081 Miranda 810 - 48 18 9 1 - 76 76 (962 ) - Socorro 782 - 107 3 4 - - 114 77 (973 ) - San Ricardo 969 - 140 1 6 - 4 151 96 (1,216 ) - Others(2) 922 - 203 11 32 4 2 252 100 (1,030 ) 244 Mexico Total $ 3,483 $ - $ 498 $ 33 $ 51 $ 5 $ 6 $ 593 $ 349 $ (4,181 ) $ 244 USA 698 - 43 - - - - 43 63 - 804 Total $ 239,871 $ - $ 1,000 $ 2,767 $ 2,053 $ 1,280 $ 927 $ 8,027 $ 412 $ (4,181 ) $ 244,129 Balance December 31, 2016 Acquisition Concessions, taxes, and royalties Salaries and share-based payments Drilling, exploration, and technical consulting Assaying, field supplies, and environmental Travel and other expenditures Total expenditures Currency translation adjustments Disposal or write-down of mineral properties Balance December 31, 2017 Springpole $ 68,121 $ 243 $ 315 $ 443 $ 462 $ 357 $ 457 $ 2,034 $ - $ - $ 70,398 Goldlund 85,103 1,196 3 581 4,173 2,125 626 7,508 - - 93,807 Hope Brook 17,595 - 21 186 397 182 284 1,070 - - 18,665 Cameron 26,017 - 38 108 174 300 39 659 - - 26,676 Pickle Crow 15,821 180 63 24 313 69 26 495 - - 16,496 Duquesne 5,023 - 1 - 23 4 2 30 - - 5,053 Pitt 2,074 - - - 5 1 - 6 - - 2,080 Others(1) - 2,500 2 - 10 3 - 15 - - 2,515 Canada Total $ 219,754 $ 4,119 $ 443 $ 1,342 $ 5,557 $ 3,041 $ 1,434 $ 11,817 $ - $ - $ 235,690 Miranda 760 - 76 - 24 2 - 102 (52 ) - 810 Socorro 712 - 112 - 8 - - 120 (50 ) - 782 San Ricardo 829 - 191 - 4 1 3 199 (59 ) - 969 Others(2) 703 - 245 - 23 1 2 271 (52 ) - 922 Mexico Total $ 3,004 $ - $ 624 $ - $ 59 $ 4 $ 5 $ 692 $ (213 ) $ - $ 3,483 USA 703 - 39 - - - 1 40 (45 ) - 698 Total $ 223,461 $ 4,119 $ 1,106 $ 1,342 $ 5,616 $ 3,045 $ 1,440 $ 12,549 $ (258 ) $ - $ 239,871 (1) Other mineral properties in Canada as at December 31, 2018 and December 31, 2017 include the mining claims and concessions located in the Township of Duparquet, Quebéc, which are near the Company’s Duquesne gold project and the Duparquet gold project (in which the Company holds a 10% indirect interest). (2) Other mineral properties in Mexico as at December 31, 2018 and December 31, 2017 include Puertecitos, Los Tamales, Las Margaritas, Geranio, El Apache, El Roble, Batacosa, Lachatao and Montana Negra. On July 30, 2018, the Company entered into an option agreement (the “Option Agreement”) with Gainey Capital Corp. (“Gainey”), granting Gainey the right to earn a 100% interest in First Mining’s Las Margaritas gold project (“Las Margaritas”) located in the State of Durango in Mexico. Under the terms of the Option Agreement, Gainey can elect to make either annual share or cash payments to the Company for aggregate consideration of between $900 and $1,015 over the four year option period. In addition, as per the terms of the Option Agreement, Gainey will make annual payments of USD $25,000 in September 2018 (paid), September 2019, September 2020 and USD $250,000 in September 2021 in connection with an existing agreement on the property, and exploration expenditures totaling USD $1,000,000 over the four year option period on Las Margaritas. Upon completion of the four year option period, Gainey obtains a 100% ownership interest in Las Margaritas, except that First Mining will retain a 2% net smelter returns (“NSR”) royalty interest, with Gainey having the right to buy back 1% of the NSR royalty interest for USD $1,000,000 up until the first anniversary of the commencement of commercial production at Las Margaritas. As at December 31, 2018, the carrying value of the Las Margaritas property is $244 (2017 - $183). During the year ended December 31, 2018, the Company recorded a write-down of certain Mexican properties amounting to $4,181 (2017 - $nil). The write-down represents the complete write-off of the carrying value of these Mexican properties (except Las Margaritas), as the Company has no plans for future exploration and has not paid the associated concession taxes for over 12 months. At December 31, 2018, the Company determined there were no significant events or changes in circumstances to indicate that the carrying amount of its other projects (the Canadian mineral property portfolio, the US property and the Las Margaritas property in Mexico) may not be recoverable. As such, there was no further write-down of mineral properties during the year ended December 31, 2018 (2017 - $nil).

MINERAL PROPERTY INVESTMENTS

MINERAL PROPERTY INVESTMENTS	12 Months Ended
	Dec. 31, 2018
Mineral Property Investments
MINERAL PROPERTY INVESTMENTS	Mineral property investments (which comprise equity interests in the shares of private companies) are designated as FVTOCI, with changes in fair value recorded in other comprehensive income (loss). The Company, through its subsidiary Clifton, has a 10% equity interest in the shares of Beattie Gold Mines Ltd., 2699681 Canada Ltd., and 2588111 Manitoba Ltd which directly or indirectly own various mining concessions and surface rights, collectively known as the Duparquet gold project. As at December 31, 2018, the fair value of mineral property investments is $4,417 (2017 - $4,417). As at December 31, 2018, there was no change in the carrying value of mineral property investments given management concluded that there was no material change in fair value (Note 17).

ACCOUNTS PAYABLE AND ACCRUED LI

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES	12 Months Ended
	Dec. 31, 2018
Trade and other payables [abstract]
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES	Category December 31, 2018 December 31, 2017 Accounts payable $ 341 $ 840 Other accrued liabilities 241 243 Total $ 582 $ 1,083

LOANS PAYABLE

LOANS PAYABLE	12 Months Ended
	Dec. 31, 2018
Borrowings [abstract]
LOANS PAYABLE	During the year ended December 31, 2017, the Company paid $461 in full and final settlement of all outstanding loans payable. As at December 31, 2018, the Company had $nil (December 31, 2017 – $nil) remaining in loans payable to First Majestic Silver Corp.

DEBENTURE LIABILITY

DEBENTURE LIABILITY	12 Months Ended
	Dec. 31, 2018
Debenture Liability
DEBENTURE LIABILITY	Pursuant to the amalgamation with Tamaka on June 16, 2016, the Company assumed a liability in connection with three debentures (the “Debentures”) with an aggregate face value of $2,140 that had previously been issued by Tamaka in 2014 and 2015. On June 30, 2017, the Company settled the debenture liability with total consideration of $3,302 through the issuance of 4,700,000 First Mining common shares, which were valued at $3,102 using the closing price as at June 30, 2017, and payment of $200 cash.

SHARE CAPITAL

SHARE CAPITAL	12 Months Ended
	Dec. 31, 2018
Disclosure of classes of share capital [abstract]
SHARE CAPITAL	a) Authorized Unlimited number of common shares with no par value. Unlimited number of preferred shares with no par value. b) Issued and Fully Paid Common shares: 558,316,916 (December 31, 2017 – 552,547,616). Preferred shares: nil (December 31, 2017 – nil). The Company has a number of escrow agreements which arose from past transactions and the initial formation of the Company: ● There were a total of 7,332,273 common shares of the Company held in escrow under the Escrow Value Security Agreement (“EVSA”) dated March 30, 2015. Under this agreement, 10% of the shares were released immediately and 15% were released every six months thereafter with the final release being on March 30, 2018. As at December 31, 2018, there were nil common shares of the Company in the EVSA escrow (December 31, 2017 – 1,099,842). ● There were a total of 1,369,500 common shares of the Company held in escrow under the CPC Escrow Agreement (“CPC”) dated August 2, 2005. On March 30, 2015, 10% of the common shares were released and 15% were released every six months thereafter with the final release being March 30, 2018. As at December 31, 2018, there were nil common shares of the Company in the CPC escrow (December 31, 2017 – 194,425). ● During the amalgamation of Tamaka on June 16, 2016, certain vendors deposited an aggregate of 29,658,290 First Mining shares received into escrow. Twenty percent of such escrowed shares were released from escrow on June 17, 2017, and an additional 20% will be released every six months thereafter, with the final tranche to be released on June 17, 2019. As at December 31, 2018 there were a total of 5,931,658 shares held in escrow as a result of the Tamaka transaction (December 31, 2017 – 17,794,974). c) Warrants The movements in warrants during the years ended December 31, 2018 and 2017 are summarized as follows: Number Weighted average exercise price Balance as at December 31, 2016 50,938,672 $ 0.80 Warrants exercised (1,245,263 ) 0.19 Balance as at December 31, 2017 49,693,409 $ 0.81 Warrants exercised (5,131,300 ) 0.17 Warrants expired (24,445,254 ) 0.80 Balance as at December 31, 2018 20,116,855 $ 0.99 The following table summarizes information about the warrants outstanding as at December 31, 2018: Exercise price Number of warrants outstanding Weighted average exercise price ($ per share) Weighted average remaining life (years) $ 0.01 – 0.50 3,241,855 $ 0.42 2.31 $ 0.51 – 1.00 - - - $ 1.01 – 1.50 16,875,000 1.10 0.59 20,116,855 $ 0.99 0.87 d) Stock Options The Company has adopted a stock option plan that allows for the granting of incentive stock options to Directors, Officers, employees and certain consultants of the Company for up to 10% of the Company’s issued and outstanding common shares. Stock options granted under the plan may be subject to vesting provisions as determined by the Board of Directors. All options granted and outstanding are fully vested and exercisable, with the exception of the grants for certain employees in accordance with TSX regulations. Effective December 10, 2018, the Board of Directors adopted the following vesting criteria on all future option grants: ● 25% vests immediately upon grant; ● 25% vests in 6 months following the date of the grant; ● 25% vests in 12 months following the date of the grant; and ● 25% vests in 18 months following the date of the grant. The movements in stock options during the years ended December 31, 2018 and 2017 are summarized as follows: Number Weighted average exercise price Balance as at December 31, 2016 24,440,617 $ 0.67 Granted – February 10, 2017 10,630,000 0.85 Granted – March 13, 2017 250,000 0.95 Granted – September 25, 2017 150,000 0.66 Granted – October 16, 2017 150,000 0.62 Options exercised (4,162,617 ) 0.43 Options expired (850,000 ) 1.65 Balance as at December 31, 2017 30,608,000 $ 0.74 Granted – January 15, 2018 9,575,000 0.60 Granted – April 16, 2018 120,000 0.50 Granted – July 20, 2018 50,000 0.43 Granted – October 16, 2018 1,400,000 0.40 Granted – December 10, 2018 12,075,000 0.40 Options exercised (638,000 ) 0.17 Options expired (1,950,000 ) 1.27 Options forfeited (2,975,000 ) 0.68 Balance as at December 31, 2018 48,265,000 $ 0.61 The weighted average closing share price at the date of exercise for the year ended December 31, 2018 was $0.38 (December 31, 2017 – $0.72). The following table summarizes information about the stock options outstanding as at December 31, 2018: Options Outstanding Options Exercisable Exercise price Number of options Weighted average exercise price ($ per share) Weighted average remaining life (years) Number of options Weighted average exercise price ($ per share) Weighted average remaining life (years) $ 0.01 – 0.50 18,915,000 $ 0.40 3.91 9,858,750 $ 0.39 2.97 $ 0.51 – 1.00 29,350,000 0.74 2.64 29,350,000 0.74 2.64 48,265,000 $ 0.61 3.14 39,208,750 $ 0.65 2.72 During the year ended December 31, 2018, there were 23,220,000 (2017 – 11,180,000 ) incentive stock option granted with an aggregate fair value of $5,116 (2017 – $5,534), or a weighted average fair value of $0.22 per option (2017 – $0.49). As at December 31, 2018, 9,056,250 (2017 – nil) incentive stock options remain unvested with an aggregate fair value of $876 (2017 - $nil). Certain incentive stock options granted were directly attributable to exploration and evaluation expenditures on mineral properties and were therefore capitalized to mineral properties. In addition, certain incentive stock options were subject to vesting provisions. These two factors result in differences between the aggregate fair value of incentive stock options granted and total share-based payments expenses during the years. Total share-based payments expense during the years ended December 31, 2018 and 2017 was classified within the financial statements as follows: For the year ended December 31, Statements of Net Loss: 2018 2017 General and administration $ 2,254 $ 3,401 Exploration and evaluation 106 1,130 Investor relations and marketing communications 437 728 Corporate development and due diligence 235 238 Subtotal $ 3,032 $ 5,497 For the year ended December 31, Statements of Financial Position: 2018 2017 Mineral Properties $ 1,169 $ 55 Total $ 4,201 $ 5,552 The fair value of the stock options recognized in the period has been estimated using the Black-Scholes option pricing model with the following weighted average assumptions: Year ended Year ended December 31, 2018 December 31, 2017 Risk-free interest rate 1.91% 1.45% Share price at grant date (in dollars) $0.41 $0.85 Exercise price (in dollars) $0.48 $0.85 Expected life (years) 5.00 years 5.00 years Expected volatility(1) 70.87% 70.45% Forfeiture rate 2.64% 0.00% Expected dividend yield Nil Nil (1) The computation of expected volatility prior to the December 10, 2018 option grant was based on the historical volatility of comparable companies from a representative peer group of publicly traded mineral exploration companies. Commencing December 10, 2018, the computation of expected volatility was based on the Company’s historical price volatility, over a period which approximates the expected life of the option.

EXPENDITURES

EXPENDITURES	12 Months Ended
	Dec. 31, 2018
EXPENDITURES
EXPENDITURES	Components by nature of the Company’s functional operating expenditure categories are as follows: For the year ended December 31, 2018 General and administration Exploration and evaluation Investor relations and marketing communications Corporate development and due diligence Total Administrative and office $ 501 $ 139 $ 33 $ 5 $ 678 Depreciation 11 193 - - 204 Consultants 62 72 17 - 151 Directors fees 143 - - - 143 Exploration and evaluation - 1 - - 1 Investor relations and marketing communications 7 7 803 2 819 Professional fees 342 - - - 342 Salaries 1,110 145 228 238 1,721 Share-based payments (non-cash) (Note 11(d)) 2,254 106 437 235 3,032 Transfer agent and filing fees 162 - 8 - 170 Travel and accommodation 100 101 108 25 334 Operating expenditures total $ 4,692 $ 764 $ 1,634 $ 505 $ 7,595 Write-down of mineral properties (non-cash) (Note 6) 4,181 Loss from operational activities $ 11,776 For the year ended December 31, 2017 General and administration Exploration and evaluation Investor relations and marketing communications Corporate development and due diligence Total Administrative and office $ 485 $ - $ - $ - $ 485 Depreciation 67 228 - - 295 Consultants 5 115 - 11 131 Directors fees 142 - - - 142 Exploration and evaluation - 67 - - 67 Investor relations and marketing communications - - 2,015 35 2,050 Professional fees 570 39 - - 609 Salaries 712 41 240 56 1,049 Share-based payments (non-cash) (Note 11(d)) 3,401 1,130 728 238 5,497 Transfer agent and filing fees 452 - - - 452 Travel and accommodation 76 138 301 - 515 Operating expenditures total $ 5,910 $ 1,758 $ 3,284 $ 340 $ 11,292 Write-down of mineral properties (non-cash) (Note 6) - Loss from operational activities $ 11,292

SEGMENT INFORMATION

SEGMENT INFORMATION	12 Months Ended
	Dec. 31, 2018
Disclosure of operating segments [abstract]
SEGMENT INFORMATION	The Company operates in a single reportable operating segment, being the acquisition, exploration, and development of North American mineral properties. Geographic information about the Company’s non-current assets, excluding financial instruments, as at December 31, 2018 and 2017 is as follows: Non-current assets December 31, 2018 December 31, 2017 Canada $ 243,854 $ 236,572 Mexico 334 3,560 USA 809 704 Total $ 244,997 $ 240,836

INCOME TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2018
Income Taxes
INCOME TAXES	Taxation in the Company and its subsidiaries’ operational jurisdictions is calculated at the rate prevailing in the respective jurisdictions. The reconciliation of income taxes calculated at the applicable Canadian federal and provincial statutory rates to the actual income tax expense (recovery) is as follows: Year ended December 31, 2018 Year ended December 31, 2017 Net loss before income tax $ 11,645 $ 11,184 Combined Canadian statutory income tax rate 27.00 % 26.00 % Income tax recovery computed at statutory income tax rate 3,144 2,908 Tax effect of: Permanent differences (599 ) (982 ) Difference in tax rates in foreign jurisdictions 128 4 Changes in estimate and others (539 ) 5,018 Changes in unrecognized deferred tax assets (2,134 ) (6,948 ) Total tax expense (recovery) $ - $ - Deferred tax assets and liabilities are offset if they relate to the same taxable entity and same taxation authority. Future potential tax deductions that do not offset deferred tax liabilities are considered to be deferred tax assets. No deferred tax asset has been recognized in respect to the losses and temporary differences below, as it is not considered probable that sufficient future taxable profit will allow the deferred tax asset to be recovered. December 31, 2018 December 31, 2017 Deferred income tax assets and liabilities Non-capital loss carryforwards $ 24,172 $ 23,793 Net capital loss carryforwards 1,580 1,580 Investment tax credits 3,857 3,979 Undeducted financing costs and others 77 115 Mineral properties 1,417 (139 ) Others 1,091 730 Unrecognized deferred tax assets (32,194 ) (30,058 ) Deferred income tax assets (liabilities), net $ - $ - As at December 31, 2018, the Company and its subsidiaries had unrecognized Canadian non-capital loss carryforwards of approximately $87,300 (2017 - $86,500) which expire between the years 2025 and 2038, unrecognized Canadian net capital loss carryforwards of approximately $5,900 (2017 - $5,900) which can be carried forward indefinitely, unrecognized Canadian investment tax credits of approximately $5,282 (2017 - $5,500) which expire between the years 2024 and 2033, and unrecognized Mexican non-capital loss carryforwards of approximately $1,603 (2017 - $1,100) which expire between the years 2019 and 2028.

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2018
Related party transactions [abstract]
RELATED PARTY TRANSACTIONS	Key management includes the Directors and Officers of the Company. The compensation paid or payable to key management for services during the years ended December 31, 2018 and 2017 are as follows: Year ended December 31, Service or Item 2018 2017 Directors’ fees $ 143 $ 142 Salaries and consultants’ fees 1,208 871 Severance payments 410 - Share-based payments (non-cash) 2,991 4,381 Total $ 4,752 $ 5,394

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	12 Months Ended
	Dec. 31, 2018
Supplemental Cash Flow Information
SUPPLEMENTAL CASH FLOW INFORMATION	a) Non-cash Investing and Financing Transactions During the year ended December 31, 2018, significant non-cash investing and financing transactions were as follows: ● Paid or accrued $nil for income taxes. During the year ended December 31, 2017, the significant non-cash investing and financing transactions were as follows: ● 3,000,000 shares issued as part of the acquisition of other Canadian mineral properties (Note 6); ● 4,700,000 shares issued as part of the settlement of the debenture liability (Note 10); and ● Paid or accrued $nil for income taxes. b) Changes in Liabilities Arising from Financing Activities Non-cash changes January 1, 2018 Cash payments Interest accrual Changes in estimate Debenture converted to shares December 31, 2018 Loans payable $ - $ - $ - $ - $ - $ - Debenture liability - - - - - - Total liabilities from financing activities $ - $ - $ - $ - $ - $ - Non-cash changes January 1, 2017 Cash payments Interest accrual Changes in estimate Debenture converted to shares December 31, 2017 Loans payable $ 455 $ (461 ) $ 6 $ - $ - $ - Debenture liability 2,106 (200 ) - 1,196 (3,102 ) - Total liabilities from financing activities $ 2,561 $ (661 ) $ 6 $ 1,196 $ (3,102 ) $ -

FAIR VALUE

FAIR VALUE	12 Months Ended
	Dec. 31, 2018
Disclosure of fair value measurement of assets [abstract]
FAIR VALUE	Fair values have been determined for measurement and/or disclosure purposes based on the following methods. The Company characterizes fair value measurements using a hierarchy that prioritizes inputs depending on the degree to which they are observable. The three levels of the fair value hierarchy are as follows: ● Level 1: fair value measurements are quoted prices (unadjusted) in active markets for identical assets or liabilities; ● Level 2: fair value measurements are those derived from inputs other than quoted prices included within level 1 that are observable for the asset or liability, either directly (i.e. as prices) or indirectly (i.e. derived from prices); and ● Level 3: fair value measurements are those derived from valuation techniques that include significant inputs for the asset or liability that are not based on observable market data (unobservable inputs). The carrying values of cash and cash equivalents, current accounts and other receivables, and accounts payable and accrued liabilities approximated their fair values because of the short-term nature of these financial instruments. These financial instruments are classified as financial assets and liabilities at amortized cost. The carrying values of non-current reclamation deposit and other receivables approximated their fair values. These financial instruments are classified as financial assets at amortized cost. The carrying value of marketable securities was based on the quoted market prices of the shares as at December 31, 2018 and was therefore considered to be Level 1. These financial instruments are classified as financial assets at FVTOCI. The carrying value of the mineral property investments (First Mining’s 10% equity interest in three privately held companies that own the Duparquet Gold Project) approximated their fair value. These financial instruments are classified as financial assets at FVTOCI. The carrying value of the mineral property investments was not based on observable market data and was therefore considered to be Level 3. The initial fair value of the mineral property investments was determined based on attributable pro-rata gold ounces for the Company’s 10% indirect interest in the Duparquet project, which formed part of the identifiable assets from the acquisition of Clifton. Subsequently, the fair value has been reassessed at each period end. Scenarios which may result in a significant change in fair value include, among others, a change in the performance of the investee, a change in the market for the investee’s future products, a change in the performance of comparable entities, a change in gold price, a change in the economic environment, or evidence from external transactions in the investee’s equity. As at December 31, 2018, management concluded that there was no significant change in the fair value of the mineral property investments. The following table presents the Company’s fair value hierarchy for financial assets that are measured at fair value: December 31, 2018 December 31, 2017 Fair value measurement Fair value measurement Carrying value Level 1 Level 3 Carrying value Level 1 Level 3 Financial assets: Marketable securities (Note 5) $ 2,597 $ 2,597 $ - $ 4,277 $ 4,277 $ - Mineral property investments (Note 7) 4,417 - 4,417 4,417 - 4,417 Total $ 7,014 $ 2,597 $ 4,417 $ 8,694 $ 4,277 $ 4,417 None of the Company’s financial liabilities are subsequently measured at fair value after initial recognition. During the year ended December 31, 2018 there have been no transfers of amounts between Level 1, Level 2, and Level 3 of the fair value hierarchy. The classification of the financial instruments as well as their carrying values as at December 31, 2018 and 2017 is shown in the table below: At December 31, 2018 Amortized Cost (Financial assets) FVTOCI(1) Amortized Cost (Financial liabilities) Total Financial assets: Cash and cash equivalents $ 5,115 $ - $ - $ 5,115 Current accounts and other receivables 17 - - 17 Marketable securities - 2,597 - 2,597 Mineral property investments - 4,417 - 4,417 Reclamation deposit 116 - - 116 Total financial assets $ 5,248 $ 7,014 $ - $ 12,262 Financial liabilities: Accounts payable and accrued liabilities $ - $ - $ 582 $ 582 At December 31, 2017 Amortized Cost (Financial assets) FVTOCI(1) Amortized Cost (Financial liabilities) Total Financial assets: Cash and cash equivalents $ 15,400 $ - $ - $ 15,400 Current accounts and other receivables 26 - - 26 Marketable securities - 4,277 - 4,277 Mineral property investments - 4,417 - 4,417 Reclamation deposit 116 - - 116 Total financial assets $ 15,542 $ 8,694 $ - $ 24,236 Financial liabilities: Accounts payable and accrued liabilities $ - $ - $ 1,083 $ 1,083 (1) The Company made an irrevocable election to reclassify marketable securities and mineral property investments fair value remeasurements from FVTPL to FVTOCI. As of December 31, 2018, there have been no remeasurements of mineral property investments.

FINANCIAL AND CAPITAL RISK MANA

FINANCIAL AND CAPITAL RISK MANAGEMENT	12 Months Ended
	Dec. 31, 2018
Financial And Capital Risk Management
FINANCIAL AND CAPITAL RISK MANAGEMENT	The Company thoroughly examines the various financial instruments and risks to which it is exposed and assesses the impact and likelihood of those risks. These risks include market risk, price risk, foreign currency risk, interest rate risk, credit risk, liquidity risk, and capital risk. Where material, these risks are reviewed and monitored by the Board of Directors. The Board of Directors has overall responsibility for the determination of the Company’s risk management objectives and policies. The overall objective of the Board is to set policies that seek to reduce risk as far as possible without unduly affecting the Company’s competitiveness and flexibility. a) Market Risk Market risk is the risk that the fair value of future cash flows of a financial instrument will fluctuate due to changes in market prices. Market risk includes equity price risk, foreign currency risk and interest rate risk. Equity Price Risk The Company is exposed to equity price risk as a result of holding equity investments, which are comprised of marketable securities and mineral property investments, in other mineral property exploration companies. If the fair value of our investments in equity instruments had been 10% higher or lower as at December 31, 2018, other comprehensive loss for the year ended December 31, 2018 would have decreased or increased, respectively, by approximately $701 (2017 – $869), as a result of changes in the fair value of equity investments. Foreign Currency Risk The Company is exposed to the financial risk related to the fluctuation of foreign exchange rates. The Company operates in Canada, the United States, and Mexico and a portion of the Company’s expenses are incurred in Canadian dollars (“CAD”), US dollars (“USD”), and Mexican Pesos (“MXN”). A significant change in the currency exchange rates between the Canadian, US and Mexican currencies, could have an effect on the Company’s results of operations, financial position or cash flows. The Company has not hedged its exposure to currency fluctuations. As at December 31, 2018, the Company is exposed to currency risk on certain financial instruments denominated in USD and MXN. The Company does not have significant transactions or hold significant cash or other financial instruments denominated in USD and MXN currencies. Therefore, the Company considers this risk to be immaterial. Interest Rate Risk Interest rate risk is the risk that future cash flows will fluctuate as a result of changes in market interest rates. The Company does not have any borrowings that are subject to fluctuations in market interest rate. Interest rate risk is limited to potential decreases on the interest rate offered on cash and cash equivalents held with chartered Canadian financial institutions. The Company considers this risk to be immaterial. b) Credit Risk Credit risk is the risk of financial loss to the Company if a customer or counterparty to a financial instrument fails to meet its contractual obligations. Financial instruments which are potentially subject to credit risk for the Company consist primarily of cash and cash equivalents, accounts and other receivables, and the reclamation deposit. The Company considers credit risk with respect to its cash and cash equivalents to be immaterial as cash and cash equivalents are mainly held through large Canadian financial institutions. c) Liquidity Risk Liquidity risk is the risk that the Company will not be able to meet its financial obligations as they become due. The Company’s policy is to ensure that it will have sufficient cash to allow it to meet its liabilities when they become due, under both normal and stressed conditions, without incurring unacceptable losses or risking damage to the Company’s reputation. The Company manages its liquidity risk by preparing annual estimates of exploration and administrative expenditures and monitoring actual expenditures compared to the estimates to ensure that there is sufficient capital on hand to meet ongoing obligations. The following table summarizes the maturities of the Company’s financial liabilities as at December 31, 2018 based on the undiscounted contractual cash flows: Carrying Amount Contractual Cash Flows Less than 1 year 1 – 3 years 4 – 5 years After 5 years Accounts payable and accrued liabilities $ 582 $ 582 $ 582 $ - $ - $ - As at December 31, 2018, the Company held cash and cash equivalents of $5,115 (December 31, 2017 - $15,400). The Company believes it has sufficient cash on hand to meet operating requirements as they arise for at least the next 12 months. d) Capital Risk Management The Company’s objectives when managing capital are to safeguard the Company’s ability to continue as a going concern in order to pursue the exploration and retention of its mineral properties. The Company has historically demonstrated the ability to raise new capital through equity issuances and/or through surplus cash as part of its acquisitions. In the management of capital, the Company includes the components of shareholders’ equity as well as cash.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	12 Months Ended
	Dec. 31, 2018
Disclosure of non-adjusting events after reporting period [abstract]
SUBSEQUENT EVENTS	Stock Options Grant Subsequent to December 31, 2018, the Company has granted 5,000,000 incentive stock options to an Officer of the Company under the terms of its stock option plan. The stock options have an exercise price of $0.40 per share, are exercisable for a period of five years from the grant date and vest following a similar criteria to that listed in Note 11(d). Forfeiture of Stock Options Subsequent to December 31, 2018 and as at the date of filing these consolidated annual financial statements, 7,550,000 stock options were forfeited.

ACCOUNTING POLICIES (Policies)

ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2018
Accounting Policies
Financial Instruments	(i) Classification The Company classifies its financial instruments in the following categories: at fair value through profit and loss (“FVTPL”), at fair value through other comprehensive income (loss) (“FVTOCI”) or at amortized cost. The Company determines the classification of financial assets at initial recognition. The classification of debt instruments is driven by the Company’s business model for managing the financial assets and their contractual cash flow characteristics. Equity instruments that are held for trading are classified as FVTPL. For other equity instruments, on the day of acquisition the Company can make an irrevocable election (on an instrument-by-instrument basis) to designate them as at FVTOCI. Financial liabilities are measured at amortized cost, unless they are required to be measured at FVTPL (such as instruments held for trading or derivatives) or the Company has opted to measure them at FVTPL. Upon the adoption of IFRS 9, the Company made an irrevocable election to classify marketable securities and mineral property investments (First Mining’s 10% equity interest in a group of privately held companies that own the Duparquet Gold Project) as FVTOCI given they are not held for trading and are instead held as strategic investments that align with the Company’s corporate objectives. (ii) Measurement Financial assets at FVTOCI Elected investments in equity instruments at FVTOCI are initially recognized at fair value plus transaction costs. Subsequently they are measured at fair value, with gains and losses recognized in other comprehensive income (loss). Financial assets and liabilities at amortized cost Financial assets and liabilities at amortized cost are initially recognized at fair value plus or minus transaction costs, respectively, and subsequently carried at amortized cost less any impairment. Financial assets and liabilities at FVTPL Financial assets and liabilities carried at FVTPL are initially recorded at fair value and transaction costs are expensed in the consolidated statements of net (loss) income. Realized and unrealized gains and losses arising from changes in the fair value of the financial assets and liabilities held at FVTPL are included in the consolidated statements of net (loss) income in the period in which they arise. Where management has opted to recognize a financial liability at FVTPL, any changes associated with the Company’s own credit risk will be recognized in other comprehensive income (loss). (iii) Impairment of financial assets at amortized cost The Company recognizes a loss allowance for expected credit losses on financial assets that are measured at amortized cost. At each reporting date, the Company measures the loss allowance for the financial asset at an amount equal to the lifetime expected credit losses if the credit risk on the financial asset has increased significantly since initial recognition. If at the reporting date, the financial asset has not increased significantly since initial recognition, the Company measures the loss allowance for the financial asset at an amount equal to the twelve month expected credit losses. The Company shall recognize in the consolidated statements of net (loss) income, as an impairment gain or loss, the amount of expected credit losses (or reversal) that is required to adjust the loss allowance at the reporting date to the amount that is required to be recognized. (iv) Derecognition Financial assets The Company derecognizes financial assets only when the contractual rights to cash flows from the financial assets expire, or when it transfers the financial assets and substantially all of the associated risks and rewards of ownership to another entity. Gains and losses on derecognition are generally recognized in the consolidated statements of net (loss) income. However, gains and losses on derecognition of financial assets classified as FVTOCI remain within accumulated other comprehensive income (loss). Financial liabilities The Company derecognizes financial liabilities only when its obligations under the financial liabilities are discharged, cancelled or expired. Generally, the difference between the carrying amount of the financial liability derecognized and the consideration paid and payable, including any non-cash assets transferred or liabilities assumed, is recognized in the consolidated statements of net (loss) income.
Cash and Cash Equivalents	Cash and cash equivalents include cash and short-term deposits that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value. The carrying amounts approximate fair value due to the short-term maturities of these instruments.
Mineral Properties	Once the legal right to explore a property has been acquired, costs directly related to exploration and evaluation expenditures are recognized and capitalized, in addition to the acquisition costs. These direct expenditures include such costs as mineral concession taxes, option payments, wages and salaries, surveying, geological consulting and laboratory, field supplies, travel and administration. Costs not directly attributable to exploration and evaluation activities, including general administrative overhead costs, are expensed in the period in which they are incurred. The Company may occasionally enter into option or royalty arrangements, whereby the Company will transfer part of its mineral properties, as consideration, for an agreement by the transferee to meet certain exploration and evaluation expenditures which would have otherwise been undertaken by the Company. The Company does not record any expenditures made by the optionee on its behalf. Any cash consideration received from the agreement is credited against the costs previously capitalized to the mineral interest given up by the Company, with any excess cash accounted for as a gain on disposal. The Company assesses exploration and evaluation assets for impairment when facts and circumstances suggest that the carrying amount of an asset may exceed its recoverable amount. The recoverable amount is the higher of the asset’s fair value less costs to sell and value in use. Once the technical feasibility and commercial viability of extracting the mineral resource has been determined, the property is considered to be a mine under development and is classified as ‘mines under construction’. Exploration and evaluation assets are also tested for impairment before the assets are transferred to development properties.
Impairment of Non-Financial Assets	Mineral properties are subject to impairment tests whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. Where the carrying value of an asset exceeds its recoverable amount, which is the higher of value in use and fair value less costs to sell, the asset is written down accordingly. An impairment loss is charged to profit or loss. For the purposes of assessing impairment, assets are grouped at the lowest levels for which there are largely independent cash flows (cash-generating units). As a result, some assets may be tested individually for impairment and some are tested at a cash-generating unit level. Impairment reviews for mineral properties are carried out on a property by property basis, with each property representing a single cash generating unit. An impairment review is undertaken when indicators of impairment arise, but typically when one of the following circumstances apply: ● The right to explore the area has expired or will expire in the near future with no expectation of renewal; ● Substantive expenditure on further exploration for and evaluation of mineral resources in the area is neither planned nor budgeted; ● No commercially viable deposits have been discovered, and the decision had been made to discontinue exploration in the area; and ● Sufficient work has been performed to indicate that the carrying amount of the expenditure carried as an asset will not be fully recovered.
Property and equipment	Property and equipment are recorded at cost less accumulated depreciation and accumulated impairment losses. The initial cost of an asset comprises its purchase price or construction cost, any costs directly attributable to bringing the asset into operation and, where applicable, the initial estimation of any asset retirement obligation. The purchase price or construction cost is the aggregate amount paid and the fair value of any other consideration given to acquire the asset. Depreciation is recognized in profit or loss on a straight-line basis over the following estimated useful lives: Buildings 10 years Machinery and equipment 5 years Furniture and fixtures 5 years Vehicles 5 years Computer equipment 3 years Computer software 1 year Depreciation methods, useful lives and residual values are reviewed at each financial year-end and adjusted if appropriate.
Environmental Reclamation Provision	The Company is subject to various government laws and regulations relating to environmental disturbances caused by exploration and evaluation activities. The present value of the estimated costs of legal and constructive obligations required to restore the exploration sites is recognized in the year in which the obligation is incurred. The nature of the reclamation activities includes restoration and revegetation of the affected exploration sites. When a liability is recognized, the present value of the estimated costs is capitalized by increasing the carrying amount of the related exploration properties. Over time, the discounted liability is increased for the changes in present value based on current market discount rates and liability specific risks. Additional environment disturbances or changes in reclamation costs will be recognized as additions to the corresponding assets and reclamation provision in the year in which they occur.
Income Taxes	Income tax expense comprises current and deferred tax. Current tax and deferred tax are recognized in net income except to the extent that it relates to a business combination or items recognized directly in equity or in other comprehensive loss. Current income taxes are recognized for the estimated income taxes payable or receivable on taxable income or loss for the current year and any adjustment to income taxes payable in respect of previous years. Current income taxes are determined using tax rates and tax laws that have been enacted or substantively enacted by the year-end date. Deferred tax assets and liabilities are recognized where the carrying amount of an asset or liability differs from its tax base, except for taxable temporary differences arising on the initial recognition of goodwill and temporary differences arising on the initial recognition of an asset or liability in a transaction which is not a business combination and at the time of the transaction affects neither accounting nor taxable profit or loss. Recognition of deferred tax assets for unused tax losses, tax credits and deductible temporary differences is restricted to those instances where it is probable that future taxable profit will be available against which the deferred tax asset can be utilized. At the end of each reporting year the Company reassesses unrecognized deferred tax assets. The Company recognizes a previously unrecognized deferred tax asset to the extent that it has become probable that future taxable profit will allow the deferred tax asset to be recovered.
Share Capital	Equity instruments are contracts that give a residual interest in the net assets of the Company. Financial instruments issued by the Company are classified as equity only to the extent that they do not meet the definition of a financial liability or financial asset. The Company’s common shares are classified as equity instruments. Incremental costs directly attributable to the issue of new shares or options are shown in equity as a deduction, net of tax, from the proceeds. Consideration received from a private placement financing involving units consisting of common shares and warrants is allocated to the share capital and the warrant reserve accounts using the relative fair value method. As prescribed by this method, the consideration is allocated to the value of share capital and warrant reserve on a pro rata basis. The share capital is valued at the closing share price of the Company on the completion date of the private placement and the warrant reserve is valued using the Black-Scholes option pricing model.
Loss per Share	Basic loss per share is calculated by dividing the net loss for the year by the weighted average number of shares outstanding during the year. Diluted loss per share is calculated using the treasury stock method. Under the treasury stock method, the weighted average number of shares outstanding used in the calculation of diluted income or loss per share assumes that the deemed proceeds received from the exercise of stock options, share purchase warrants and their equivalents would be used to repurchase common shares of the Company at the average market price during the year, if they are determined to have a dilutive effect. Existing stock options and share purchase warrants have not been included in the current year computation of diluted loss per share as to do so would be anti-dilutive. Accordingly, the current year basic and diluted losses per share are the same.
Share-based Payments	Where equity-settled share options are granted to employees, the fair value of the options at the date of grant, measured using the Black-Scholes option pricing model, is charged to the statement of comprehensive loss or capitalized to mineral properties over the vesting period using the graded vesting method. Performance vesting conditions are taken into account by adjusting the number of equity instruments expected to vest at each reporting date so that, ultimately, the cumulative amount recognized over the vesting period is based on the number of options that eventually vest. Charges for options that are forfeited before vesting are reversed from share-based payment reserve. Where equity-settled share options are granted to non-employees, they are measured at the fair value of the goods or services received. However, if the value of goods or services received in exchange for the options cannot be reliably estimated, the options are measured using the Black-Scholes option pricing model. All equity-settled share-based payments are reflected in share-based payment reserve, until exercised. Upon exercise, shares are issued from treasury and the amount reflected in share-based payment reserve is credited to share capital, together with any consideration received.
Segment Reporting	Operating segments are reported in a manner consistent with the internal reporting provided to the chief operating decision-maker. The chief operating decision-maker is responsible for allocating resources and assessing performance of the operating segment.
Critical Accounting Judgments and Estimates	The preparation of financial statements requires the use of accounting estimates. It also requires management to exercise judgment in the process of applying its accounting policies. Estimates and judgments are regularly evaluated and are based on management’s experience and other factors, including expectations about future events that are believed to be reasonable under the circumstances. The use of judgments, estimates and assumptions affects the application of accounting policies and the reported amounts of assets and liabilities, income and expense. Actual results may differ from these estimates. The following discusses the accounting judgments and estimates that the Company has made in the preparation of the audited consolidated financial statements for the year ended December 31, 2018, which could result in a material adjustment to the carrying amounts of assets and liabilities: (i) Accounting policy judgements Impairment of Mineral Properties In accordance with the Company’s accounting policy for its mineral properties, exploration and evaluation expenditures on mineral properties are capitalized. There is no certainty that the expenditures made by the Company in the exploration of its property interests will result in discoveries of commercial quantities of minerals. The Company applies judgment to determine whether indicators of impairment exist for these capitalized costs. Management uses several criteria in making this assessment, including the period for which the Company has the right to explore, expected renewals of exploration rights, whether substantive expenditures on further exploration and evaluation of mineral properties are budgeted, and evaluation of the results of exploration and evaluation activities up to the reporting date. (ii) Estimation Uncertainty Determining Amount and Timing of Reclamation Provisions A reclamation provision represents the present value of estimated future costs for the reclamation of the Company’s mineral properties. These estimates include assumptions as to the future activities, cost of services, timing of the reclamation work to be performed, inflation rates, exchange rates and interest rates. The actual cost to reclaim a mine or exploration property may vary from the estimated amounts because there are uncertainties in factors used to estimate the cost and potential changes in regulations or laws governing the reclamation of a mineral property. Management periodically reviews the reclamation requirements and adjusts the liability as new information becomes available and will assess the impact of new regulations and laws as they are enacted. Valuation of Mineral Property Investments The Company makes estimates and assumptions that affect the carrying value of its mineral property investments, which are comprised of equity interests in the shares of private companies. These financial assets are designated as fair value through other comprehensive income (loss), and management needs to determine the fair value as at each period end. As there is no observable market data which can be used to determine this fair value, management uses property specific and market based information to determine whether a significant change in the fair value of this investment may have occurred. Factors that are considered include a change in the performance of the investee, a change in the market for the investee’s future products, a change in the performance of comparable entities, a change in the economic environment, or evidence from external transactions in the investee’s equity. Changes to these variables could result in the fair value being less than or greater than the amount recorded.
Accounting Standards Issued but Not Yet Applied	The following are accounting standards anticipated to be effective January 1, 2019 or later: i) IFRS 16 Leases IFRS 16 replaces IAS 17 Leases The standard provides a single lessee accounting model, requiring lessees to recognize assets and liabilities for all leases unless the lease term is 12 months or less or the underlying asset has a low value. Application of the standard is mandatory for annual periods beginning on or after January 1, 2019. IFRS 16 will result in an increase in assets and liabilities. Management expects an increase in depreciation expense and also an increase in cash flow from operating activities as lease payments will be recorded as financing outflows in the consolidated statements of cash flows. The Company does not expect these impacts to be material. The Company will adopt IFRS 16 on its effective date of January 1, 2019. There are no other IFRS or International Financial Reporting Interpretations Committee interpretations that are not yet effective that would be expected to have a material impact on the Company’s consolidated financial statements.

BASIS OF PRESENTATION (Tables)

BASIS OF PRESENTATION (Tables)	12 Months Ended
	Dec. 31, 2018
Basis Of Presentation
Subsidiaries	Name Place of Incorporation Ownership Percentage First Mining Gold Corp. Canada Parent Gold Canyon Resources Inc. (“Gold Canyon”) Canada 100% Goldlund Resources Inc. (“Goldlund”) Canada 100% Coastal Gold Corp. (“Coastal Gold”) Canada 100% Cameron Gold Operations Ltd. (“Cameron Gold”) Canada 100% PC Gold Inc. (“PC Gold”) Canada 100% Clifton Star Resources Inc. (“Clifton”) Canada 100% Minera Teocuitla, S.A. de C.V. (“Teocuitla”) Mexico 100%

ACCOUNTING POLICIES (Tables)

ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2018
Accounting Policies
Property and equipment useful lives	Buildings 10 years Machinery and equipment 5 years Furniture and fixtures 5 years Vehicles 5 years Computer equipment 3 years Computer software 1 year

ACCOUNTS AND OTHER RECEIVABLES

ACCOUNTS AND OTHER RECEIVABLES (Tables)	12 Months Ended
	Dec. 31, 2018
Trade and other receivables [abstract]
Accounts and other receivables	Category December 31, 2018 December 31, 2017 Current GST and HST receivables $ 71 $ 348 Quebec mining tax receivables 61 61 Other receivables 17 26 Total current accounts and other receivables $ 149 $ 435 Non-current Mexican VAT receivable 90 77 Total accounts and other receivables $ 239 $ 512

MARKETABLE SECURITIES (Tables)

MARKETABLE SECURITIES (Tables)	12 Months Ended
	Dec. 31, 2018
Available-for-sale financial assets [abstract]
Change in marketable securities	Silver One Resources Inc. Other Marketable Securities Total Balance as at December 31, 2017 $ 2,280 $ 1,997 $ 4,277 Loss recorded in other comprehensive loss (1,290 ) (390 ) (1,680 ) Balance as at December 31, 2018 $ 990 $ 1,607 $ 2,597 Silver One Resources Inc. Other Marketable Securities Total Balance as at December 31, 2016 $ 5,280 $ 567 $ 5,847 Purchases - 1,829 1,829 Loss recorded in other comprehensive loss (3,000 ) (399 ) (3,399 ) Balance as at December 31, 2017 $ 2,280 $ 1,997 $ 4,277

MINERAL PROPERTIES (Tables)

MINERAL PROPERTIES (Tables)	12 Months Ended
	Dec. 31, 2018
Assets Arising From Exploration For And Evaluation Of Mineral Resources Abstract
Mineral properties	As at December 31, 2018 and December 31, 2017, the Company has capitalized the following acquisition, exploration and evaluation costs on its mineral properties: Balance December 31, 2017 Acquisition Concessions, taxes, and royalties Salaries and share-based payments Drilling, exploration, and technical consulting Assaying, field supplies, and environmental Travel and other expenditures Total expenditures Currency translation adjustments Disposal or write-down of mineral properties Balance December 31, 2018 Springpole $ 70,398 $ - $ 237 $ 1,048 $ 657 $ 479 $ 559 $ 2,980 $ - $ - $ 73,378 Goldlund 93,807 - 2 928 1,045 596 226 2,797 - - 96,604 Hope Brook 18,665 - 123 459 136 116 82 916 - - 19,581 Cameron 26,676 - 39 193 57 39 28 356 - - 27,032 Pickle Crow 16,496 - 50 92 58 36 22 258 - - 16,754 Duquesne 5,053 - 6 4 27 - 1 38 - - 5,091 Pitt 2,080 - - - 1 - 1 2 - - 2,082 Others(1) 2,515 - 2 10 21 9 2 44 - - 2,559 Canada Total $ 235,690 $ - $ 459 $ 2,734 $ 2,002 $ 1,275 $ 921 $ 7,391 $ - $ - $ 243,081 Miranda 810 - 48 18 9 1 - 76 76 (962 ) - Socorro 782 - 107 3 4 - - 114 77 (973 ) - San Ricardo 969 - 140 1 6 - 4 151 96 (1,216 ) - Others(2) 922 - 203 11 32 4 2 252 100 (1,030 ) 244 Mexico Total $ 3,483 $ - $ 498 $ 33 $ 51 $ 5 $ 6 $ 593 $ 349 $ (4,181 ) $ 244 USA 698 - 43 - - - - 43 63 - 804 Total $ 239,871 $ - $ 1,000 $ 2,767 $ 2,053 $ 1,280 $ 927 $ 8,027 $ 412 $ (4,181 ) $ 244,129 Balance December 31, 2016 Acquisition Concessions, taxes, and royalties Salaries and share-based payments Drilling, exploration, and technical consulting Assaying, field supplies, and environmental Travel and other expenditures Total expenditures Currency translation adjustments Disposal or write-down of mineral properties Balance December 31, 2017 Springpole $ 68,121 $ 243 $ 315 $ 443 $ 462 $ 357 $ 457 $ 2,034 $ - $ - $ 70,398 Goldlund 85,103 1,196 3 581 4,173 2,125 626 7,508 - - 93,807 Hope Brook 17,595 - 21 186 397 182 284 1,070 - - 18,665 Cameron 26,017 - 38 108 174 300 39 659 - - 26,676 Pickle Crow 15,821 180 63 24 313 69 26 495 - - 16,496 Duquesne 5,023 - 1 - 23 4 2 30 - - 5,053 Pitt 2,074 - - - 5 1 - 6 - - 2,080 Others(1) - 2,500 2 - 10 3 - 15 - - 2,515 Canada Total $ 219,754 $ 4,119 $ 443 $ 1,342 $ 5,557 $ 3,041 $ 1,434 $ 11,817 $ - $ - $ 235,690 Miranda 760 - 76 - 24 2 - 102 (52 ) - 810 Socorro 712 - 112 - 8 - - 120 (50 ) - 782 San Ricardo 829 - 191 - 4 1 3 199 (59 ) - 969 Others(2) 703 - 245 - 23 1 2 271 (52 ) - 922 Mexico Total $ 3,004 $ - $ 624 $ - $ 59 $ 4 $ 5 $ 692 $ (213 ) $ - $ 3,483 USA 703 - 39 - - - 1 40 (45 ) - 698 Total $ 223,461 $ 4,119 $ 1,106 $ 1,342 $ 5,616 $ 3,045 $ 1,440 $ 12,549 $ (258 ) $ - $ 239,871 (1) Other mineral properties in Canada as at December 31, 2018 and December 31, 2017 include the mining claims and concessions located in the Township of Duparquet, Quebéc, which are near the Company’s Duquesne gold project and the Duparquet gold project (in which the Company holds a 10% indirect interest). (2) Other mineral properties in Mexico as at December 31, 2018 and December 31, 2017 include Puertecitos, Los Tamales, Las Margaritas, Geranio, El Apache, El Roble, Batacosa, Lachatao and Montana Negra. On July 30, 2018, the Company entered into an option agreement (the “Option Agreement”) with Gainey Capital Corp. (“Gainey”), granting Gainey the right to earn a 100% interest in First Mining’s Las Margaritas gold project (“Las Margaritas”) located in the State of Durango in Mexico. Under the terms of the Option Agreement, Gainey can elect to make either annual share or cash payments to the Company for aggregate consideration of between $900 and $1,015 over the four year option period. In addition, as per the terms of the Option Agreement, Gainey will make annual payments of USD $25,000 in September 2018 (paid), September 2019, September 2020 and USD $250,000 in September 2021 in connection with an existing agreement on the property, and exploration expenditures totaling USD $1,000,000 over the four year option period on Las Margaritas. Upon completion of the four year option period, Gainey obtains a 100% ownership interest in Las Margaritas, except that First Mining will retain a 2% net smelter returns (“NSR”) royalty interest, with Gainey having the right to buy back 1% of the NSR royalty interest for USD $1,000,000 up until the first anniversary of the commencement of commercial production at Las Margaritas. As at December 31, 2018, the carrying value of the Las Margaritas property is $244 (2017 - $183). During the year ended December 31, 2018, the Company recorded a write-down of certain Mexican properties amounting to $4,181 (2017 - $nil). The write-down represents the complete write-off of the carrying value of these Mexican properties (except Las Margaritas), as the Company has no plans for future exploration and has not paid the associated concession taxes for over 12 months. At December 31, 2018, the Company determined there were no significant events or changes in circumstances to indicate that the carrying amount of its other projects (the Canadian mineral property portfolio, the US property and the Las Margaritas property in Mexico) may not be recoverable. As such, there was no further write-down of mineral properties during the year ended December 31, 2018 (2017 - $nil).

ACCOUNTS PAYABLE AND ACCRUED _2

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2018
Trade and other payables [abstract]
Accounts payable and accrued liabilities	Category December 31, 2018 December 31, 2017 Accounts payable $ 341 $ 840 Other accrued liabilities 241 243 Total $ 582 $ 1,083

SHARE CAPITAL (Tables)

SHARE CAPITAL (Tables)	12 Months Ended
	Dec. 31, 2018
Disclosure of classes of share capital [abstract]
Warrant activity	Number Weighted average exercise price Balance as at December 31, 2016 50,938,672 $ 0.80 Warrants exercised (1,245,263 ) 0.19 Balance as at December 31, 2017 49,693,409 $ 0.81 Warrants exercised (5,131,300 ) 0.17 Warrants expired (24,445,254 ) 0.80 Balance as at December 31, 2018 20,116,855 $ 0.99
Warrants outstanding	Exercise price Number of warrants outstanding Weighted average exercise price ($ per share) Weighted average remaining life (years) $ 0.01 – 0.50 3,241,855 $ 0.42 2.31 $ 0.51 – 1.00 - - - $ 1.01 – 1.50 16,875,000 1.10 0.59 20,116,855 $ 0.99 0.87
Stock option activity	Number Weighted average exercise price Balance as at December 31, 2016 24,440,617 $ 0.67 Granted – February 10, 2017 10,630,000 0.85 Granted – March 13, 2017 250,000 0.95 Granted – September 25, 2017 150,000 0.66 Granted – October 16, 2017 150,000 0.62 Options exercised (4,162,617 ) 0.43 Options expired (850,000 ) 1.65 Balance as at December 31, 2017 30,608,000 $ 0.74 Granted – January 15, 2018 9,575,000 0.60 Granted – April 16, 2018 120,000 0.50 Granted – July 20, 2018 50,000 0.43 Granted – October 16, 2018 1,400,000 0.40 Granted – December 10, 2018 12,075,000 0.40 Options exercised (638,000 ) 0.17 Options expired (1,950,000 ) 1.27 Options forfeited (2,975,000 ) 0.68 Balance as at December 31, 2018 48,265,000 $ 0.61
Stock options outstanding	Options Outstanding Options Exercisable Exercise price Number of options Weighted average exercise price ($ per share) Weighted average remaining life (years) Number of options Weighted average exercise price ($ per share) Weighted average remaining life (years) $ 0.01 – 0.50 18,915,000 $ 0.40 3.91 9,858,750 $ 0.39 2.97 $ 0.51 – 1.00 29,350,000 0.74 2.64 29,350,000 0.74 2.64 48,265,000 $ 0.61 3.14 39,208,750 $ 0.65 2.72
Share-based payments expenses	For the year ended December 31, Statements of Net Loss: 2018 2017 General and administration $ 2,254 $ 3,401 Exploration and evaluation 106 1,130 Investor relations and marketing communications 437 728 Corporate development and due diligence 235 238 Subtotal $ 3,032 $ 5,497 For the year ended December 31, Statements of Financial Position: 2018 2017 Mineral Properties $ 1,169 $ 55 Total $ 4,201 $ 5,552
Stock option weighted average assumptions	Year ended Year ended December 31, 2018 December 31, 2017 Risk-free interest rate 1.91% 1.45% Share price at grant date (in dollars) $0.41 $0.85 Exercise price (in dollars) $0.48 $0.85 Expected life (years) 5.00 years 5.00 years Expected volatility(1) 70.87% 70.45% Forfeiture rate 2.64% 0.00% Expected dividend yield Nil Nil

EXPENDITURES (Tables)

EXPENDITURES (Tables)	12 Months Ended
	Dec. 31, 2018
EXPENDITURES
Expenditures	Components by nature of the Company’s functional operating expenditure categories are as follows: For the year ended December 31, 2018 General and administration Exploration and evaluation Investor relations and marketing communications Corporate development and due diligence Total Administrative and office $ 501 $ 139 $ 33 $ 5 $ 678 Depreciation 11 193 - - 204 Consultants 62 72 17 - 151 Directors fees 143 - - - 143 Exploration and evaluation - 1 - - 1 Investor relations and marketing communications 7 7 803 2 819 Professional fees 342 - - - 342 Salaries 1,110 145 228 238 1,721 Share-based payments (non-cash) (Note 11(d)) 2,254 106 437 235 3,032 Transfer agent and filing fees 162 - 8 - 170 Travel and accommodation 100 101 108 25 334 Operating expenditures total $ 4,692 $ 764 $ 1,634 $ 505 $ 7,595 Write-down of mineral properties (non-cash) (Note 6) 4,181 Loss from operational activities $ 11,776 For the year ended December 31, 2017 General and administration Exploration and evaluation Investor relations and marketing communications Corporate development and due diligence Total Administrative and office $ 485 $ - $ - $ - $ 485 Depreciation 67 228 - - 295 Consultants 5 115 - 11 131 Directors fees 142 - - - 142 Exploration and evaluation - 67 - - 67 Investor relations and marketing communications - - 2,015 35 2,050 Professional fees 570 39 - - 609 Salaries 712 41 240 56 1,049 Share-based payments (non-cash) (Note 11(d)) 3,401 1,130 728 238 5,497 Transfer agent and filing fees 452 - - - 452 Travel and accommodation 76 138 301 - 515 Operating expenditures total $ 5,910 $ 1,758 $ 3,284 $ 340 $ 11,292 Write-down of mineral properties (non-cash) (Note 6) - Loss from operational activities $ 11,292

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2018
Disclosure of operating segments [abstract]
Segment information	The Company operates in a single reportable operating segment, being the acquisition, exploration, and development of North American mineral properties. Geographic information about the Company’s non-current assets, excluding financial instruments, as at December 31, 2018 and 2017 is as follows: Non-current assets December 31, 2018 December 31, 2017 Canada $ 243,854 $ 236,572 Mexico 334 3,560 USA 809 704 Total $ 244,997 $ 240,836

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2018
Income Taxes
Income tax expense (recovery)	Year ended December 31, 2018 Year ended December 31, 2017 Net loss before income tax $ 11,645 $ 11,184 Combined Canadian statutory income tax rate 27.00 % 26.00 % Income tax recovery computed at statutory income tax rate 3,144 2,908 Tax effect of: Permanent differences (599 ) (982 ) Difference in tax rates in foreign jurisdictions 128 4 Changes in estimate and others (539 ) 5,018 Changes in unrecognized deferred tax assets (2,134 ) (6,948 ) Total tax expense (recovery) $ - $ -
Deferred income tax assets	December 31, 2018 December 31, 2017 Deferred income tax assets and liabilities Non-capital loss carryforwards $ 24,172 $ 23,793 Net capital loss carryforwards 1,580 1,580 Investment tax credits 3,857 3,979 Undeducted financing costs and others 77 115 Mineral properties 1,417 (139 ) Others 1,091 730 Unrecognized deferred tax assets (32,194 ) (30,058 ) Deferred income tax assets (liabilities), net $ - $ -

RELATED PARTY TRANSACTIONS (Tab

RELATED PARTY TRANSACTIONS (Tables)	12 Months Ended
	Dec. 31, 2018
Related party transactions [abstract]
Key management compensation	Year ended December 31, Service or Item 2018 2017 Directors’ fees $ 143 $ 142 Salaries and consultants’ fees 1,208 871 Severance payments 410 - Share-based payments (non-cash) 2,991 4,381 Total $ 4,752 $ 5,394

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2018
Supplemental Cash Flow Information
Supplemental cash flow information	Non-cash changes January 1, 2018 Cash payments Interest accrual Changes in estimate Debenture converted to shares December 31, 2018 Loans payable $ - $ - $ - $ - $ - $ - Debenture liability - - - - - - Total liabilities from financing activities $ - $ - $ - $ - $ - $ - Non-cash changes January 1, 2017 Cash payments Interest accrual Changes in estimate Debenture converted to shares December 31, 2017 Loans payable $ 455 $ (461 ) $ 6 $ - $ - $ - Debenture liability 2,106 (200 ) - 1,196 (3,102 ) - Total liabilities from financing activities $ 2,561 $ (661 ) $ 6 $ 1,196 $ (3,102 ) $ -

FAIR VALUE (Tables)

FAIR VALUE (Tables)	12 Months Ended
	Dec. 31, 2018
Disclosure of fair value measurement of assets [abstract]
Financial assets measured at fair value	December 31, 2018 December 31, 2017 Fair value measurement Fair value measurement Carrying value Level 1 Level 3 Carrying value Level 1 Level 3 Financial assets: Marketable securities (Note 5) $ 2,597 $ 2,597 $ - $ 4,277 $ 4,277 $ - Mineral property investments (Note 7) 4,417 - 4,417 4,417 - 4,417 Total $ 7,014 $ 2,597 $ 4,417 $ 8,694 $ 4,277 $ 4,417
Financial instruments	At December 31, 2018 Amortized Cost (Financial assets) FVTOCI(1) Amortized Cost (Financial liabilities) Total Financial assets: Cash and cash equivalents $ 5,115 $ - $ - $ 5,115 Current accounts and other receivables 17 - - 17 Marketable securities - 2,597 - 2,597 Mineral property investments - 4,417 - 4,417 Reclamation deposit 116 - - 116 Total financial assets $ 5,248 $ 7,014 $ - $ 12,262 Financial liabilities: Accounts payable and accrued liabilities $ - $ - $ 582 $ 582 At December 31, 2017 Amortized Cost (Financial assets) FVTOCI(1) Amortized Cost (Financial liabilities) Total Financial assets: Cash and cash equivalents $ 15,400 $ - $ - $ 15,400 Current accounts and other receivables 26 - - 26 Marketable securities - 4,277 - 4,277 Mineral property investments - 4,417 - 4,417 Reclamation deposit 116 - - 116 Total financial assets $ 15,542 $ 8,694 $ - $ 24,236 Financial liabilities: Accounts payable and accrued liabilities $ - $ - $ 1,083 $ 1,083 (1) The Company made an irrevocable election to reclassify marketable securities and mineral property investments fair value remeasurements from FVTPL to FVTOCI. As of December 31, 2018, there have been no remeasurements of mineral property investments.

FINANCIAL AND CAPITAL RISK MA_2

FINANCIAL AND CAPITAL RISK MANAGEMENT (Tables)	12 Months Ended
	Dec. 31, 2018
Disclosure of credit risk exposure [abstract]
Liquidity risk	Carrying Amount Contractual Cash Flows Less than 1 year 1 – 3 years 4 – 5 years After 5 years Accounts payable and accrued liabilities $ 582 $ 582 $ 582 $ - $ - $ -

BASIS OF PRESENTATION (Details)

BASIS OF PRESENTATION (Details)	12 Months Ended
	Dec. 31, 2018
Subsidiary 1
Disclosure of subsidiaries [line items]
Parent name	First Mining Gold Corp.
Parent place of incorporation	Canada
Subsidiary 2
Disclosure of subsidiaries [line items]
Subsidiary name	Gold Canyon Resources Inc. (“Gold Canyon”)
Subsidiary place of incorporation	Canada
Subsidiary ownership percentage	100.00%
Subsidiary 3
Disclosure of subsidiaries [line items]
Subsidiary name	Goldlund Resources Inc. (“Goldlund”)
Subsidiary place of incorporation	Canada
Subsidiary ownership percentage	100.00%
Subsidiary 4
Disclosure of subsidiaries [line items]
Subsidiary name	Coastal Gold Corp. (“Coastal Gold”)
Subsidiary place of incorporation	Canada
Subsidiary ownership percentage	100.00%
Subsidiary 5
Disclosure of subsidiaries [line items]
Subsidiary name	Cameron Gold Operations Ltd. (“Cameron Gold”)
Subsidiary place of incorporation	Canada
Subsidiary ownership percentage	100.00%
Subsidiary 6
Disclosure of subsidiaries [line items]
Subsidiary name	PC Gold Inc. (“PC Gold”)
Subsidiary place of incorporation	Canada
Subsidiary ownership percentage	100.00%
Subsidiary 7
Disclosure of subsidiaries [line items]
Subsidiary name	Clifton Star Resources Inc. (“Clifton”)
Subsidiary place of incorporation	Canada
Subsidiary ownership percentage	100.00%
Subsidiary 8
Disclosure of subsidiaries [line items]
Subsidiary name	Minera Teocuitla, S.A. de C.V. (“Teocuitla”)
Subsidiary place of incorporation	Mexico
Subsidiary ownership percentage	100.00%

ACCOUNTING POLICIES (Details)

ACCOUNTING POLICIES (Details)	12 Months Ended
	Dec. 31, 2018
Buildings
Disclosure of detailed information about property, plant and equipment [line items]
Property and equipment useful lives	10 years
Machinery and equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property and equipment useful lives	5 years
Furniture and fixtures
Disclosure of detailed information about property, plant and equipment [line items]
Property and equipment useful lives	5 years
Vehicles
Disclosure of detailed information about property, plant and equipment [line items]
Property and equipment useful lives	5 years
Computer equipment
Disclosure of detailed information about property, plant and equipment [line items]
Property and equipment useful lives	3 years
Computer software
Disclosure of detailed information about property, plant and equipment [line items]
Property and equipment useful lives	1 year

ACCOUNTS AND OTHER RECEIVABLE_2

ACCOUNTS AND OTHER RECEIVABLES (Details) - CAD ($)	Dec. 31, 2018	Dec. 31, 2017
DisclosureOfTradeAndOtherReceivablesLineItems [Line Items]
Current accounts and other receivables	$ 149	$ 435
Other non-current receivables	90	77
Accounts and other receivables	239	512
GST and HST receivables
DisclosureOfTradeAndOtherReceivablesLineItems [Line Items]
Current accounts and other receivables	71	348
Quebec mining tax receivables
DisclosureOfTradeAndOtherReceivablesLineItems [Line Items]
Current accounts and other receivables	61	61
Other receivables
DisclosureOfTradeAndOtherReceivablesLineItems [Line Items]
Current accounts and other receivables	17	26
Mexican VAT receivable
DisclosureOfTradeAndOtherReceivablesLineItems [Line Items]
Other non-current receivables	$ 90	$ 77

MARKETABLE SECURITIES (Details)

MARKETABLE SECURITIES (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
DisclosureOfAvailableforsaleFinancialAssetsLineItems [Line Items]
Marketable securities, beginning	$ 4,277	$ 5,847
Purchases		1,829
Loss recorded in other comprehensive loss	(1,680)	(3,399)
Marketable securities, ending	2,597	4,277
Silver One Resources Inc.
DisclosureOfAvailableforsaleFinancialAssetsLineItems [Line Items]
Marketable securities, beginning	2,280	5,280
Purchases		0
Loss recorded in other comprehensive loss	(1,290)	(3,000)
Marketable securities, ending	990	2,280
Other Marketable Securities
DisclosureOfAvailableforsaleFinancialAssetsLineItems [Line Items]
Marketable securities, beginning	1,997	567
Purchases		1,829
Loss recorded in other comprehensive loss	(390)	(399)
Marketable securities, ending	$ 1,607	$ 1,997

MINERAL PROPERTIES (Details)

MINERAL PROPERTIES (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	$ 239,871	$ 223,461
Acquisition	0	4,119
Concessions, taxes and royalties	1,000	1,106
Wages and salaries	2,767	1,342
Drilling, exploration, and technical consulting	2,053	5,616
Assaying, field supplies and environment	1,280	3,045
Travel and other expenditures	927	1,440
Total expenditures	8,027	12,549
Currency translation adjustments	412	(258)
Disposal or write-downs of mineral properties	(4,181)	0
Mineral properties, ending	244,129	239,871
Canada
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	235,690	219,754
Acquisition	0	4,119
Concessions, taxes and royalties	459	443
Wages and salaries	2,734	1,342
Drilling, exploration, and technical consulting	2,002	5,557
Assaying, field supplies and environment	1,275	3,041
Travel and other expenditures	921	1,434
Total expenditures	7,391	11,817
Currency translation adjustments	0	0
Disposal or write-downs of mineral properties	0	0
Mineral properties, ending	243,081	235,690
Canada | Springpole
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	70,398	68,121
Acquisition	0	243
Concessions, taxes and royalties	237	315
Wages and salaries	1,048	443
Drilling, exploration, and technical consulting	657	462
Assaying, field supplies and environment	479	357
Travel and other expenditures	559	457
Total expenditures	2,980	2,034
Currency translation adjustments	0	0
Disposal or write-downs of mineral properties	0	0
Mineral properties, ending	73,378	70,398
Canada | Goldlund Gold
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	93,807	85,103
Acquisition	0	1,196
Concessions, taxes and royalties	2	3
Wages and salaries	928	581
Drilling, exploration, and technical consulting	1,045	4,173
Assaying, field supplies and environment	596	2,125
Travel and other expenditures	226	626
Total expenditures	2,797	7,508
Currency translation adjustments	0	0
Disposal or write-downs of mineral properties	0	0
Mineral properties, ending	96,604	93,807
Canada | Hope Brook
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	18,665	17,595
Acquisition	0	0
Concessions, taxes and royalties	123	21
Wages and salaries	459	186
Drilling, exploration, and technical consulting	136	397
Assaying, field supplies and environment	116	182
Travel and other expenditures	82	284
Total expenditures	916	1,070
Currency translation adjustments	0	0
Disposal or write-downs of mineral properties	0	0
Mineral properties, ending	19,581	18,665
Canada | Cameron Gold
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	26,676	26,017
Acquisition	0	0
Concessions, taxes and royalties	39	38
Wages and salaries	193	108
Drilling, exploration, and technical consulting	57	174
Assaying, field supplies and environment	39	300
Travel and other expenditures	28	39
Total expenditures	356	659
Currency translation adjustments	0	0
Disposal or write-downs of mineral properties	0	0
Mineral properties, ending	27,032	26,676
Canada | Pickle Crow
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	16,496	15,821
Acquisition	0	180
Concessions, taxes and royalties	50	63
Wages and salaries	92	24
Drilling, exploration, and technical consulting	58	313
Assaying, field supplies and environment	36	69
Travel and other expenditures	22	26
Total expenditures	258	495
Currency translation adjustments	0	0
Disposal or write-downs of mineral properties	0	0
Mineral properties, ending	16,754	16,496
Canada | Duquesne
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	5,053	5,023
Acquisition	0	0
Concessions, taxes and royalties	6	1
Wages and salaries	4	0
Drilling, exploration, and technical consulting	27	23
Assaying, field supplies and environment	0	4
Travel and other expenditures	1	2
Total expenditures	38	30
Currency translation adjustments	0	0
Disposal or write-downs of mineral properties	0	0
Mineral properties, ending	5,091	5,053
Canada | Pitt Gold
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	2,080	2,074
Acquisition	0	0
Concessions, taxes and royalties	0	0
Wages and salaries	0	0
Drilling, exploration, and technical consulting	1	5
Assaying, field supplies and environment	0	1
Travel and other expenditures	1	0
Total expenditures	2	6
Currency translation adjustments	0	0
Disposal or write-downs of mineral properties	0	0
Mineral properties, ending	2,082	2,080
Canada | Others
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	2,515	0
Acquisition	0	2,500
Concessions, taxes and royalties	2	2
Wages and salaries	10	0
Drilling, exploration, and technical consulting	21	10
Assaying, field supplies and environment	9	3
Travel and other expenditures	2	0
Total expenditures	44	15
Currency translation adjustments	0	0
Disposal or write-downs of mineral properties	0	0
Mineral properties, ending	2,559	2,515
Mexico
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	3,483	3,004
Acquisition	0	0
Concessions, taxes and royalties	498	624
Wages and salaries	33	0
Drilling, exploration, and technical consulting	51	59
Assaying, field supplies and environment	5	4
Travel and other expenditures	6	5
Total expenditures	593	692
Currency translation adjustments	349	(213)
Disposal or write-downs of mineral properties	(4,181)	0
Mineral properties, ending	244	3,483
Mexico | Others
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	922	703
Acquisition	0	0
Concessions, taxes and royalties	203	245
Wages and salaries	11	0
Drilling, exploration, and technical consulting	32	23
Assaying, field supplies and environment	4	1
Travel and other expenditures	2	2
Total expenditures	252	271
Currency translation adjustments	100	(52)
Disposal or write-downs of mineral properties	(1,030)	0
Mineral properties, ending	244	922
Mexico | Miranda
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	810	760
Acquisition	0	0
Concessions, taxes and royalties	48	76
Wages and salaries	18	0
Drilling, exploration, and technical consulting	9	24
Assaying, field supplies and environment	1	2
Travel and other expenditures	0	0
Total expenditures	76	102
Currency translation adjustments	76	(52)
Disposal or write-downs of mineral properties	(962)	0
Mineral properties, ending	0	810
Mexico | Socorro
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	782	712
Acquisition	0	0
Concessions, taxes and royalties	107	112
Wages and salaries	3	0
Drilling, exploration, and technical consulting	4	8
Assaying, field supplies and environment	0	0
Travel and other expenditures	0	0
Total expenditures	114	120
Currency translation adjustments	77	(50)
Disposal or write-downs of mineral properties	(973)	0
Mineral properties, ending	0	782
Mexico | San Ricardo
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	969	829
Acquisition	0	0
Concessions, taxes and royalties	140	191
Wages and salaries	1	0
Drilling, exploration, and technical consulting	6	4
Assaying, field supplies and environment	0	1
Travel and other expenditures	4	3
Total expenditures	151	199
Currency translation adjustments	96	(59)
Disposal or write-downs of mineral properties	(1,216)	0
Mineral properties, ending	0	969
USA
DisclosureOfMineralPropertiesLineItems [Line Items]
Mineral properties, beginning	698	703
Acquisition	0	0
Concessions, taxes and royalties	43	39
Wages and salaries	0	0
Drilling, exploration, and technical consulting	0	0
Assaying, field supplies and environment	0	0
Travel and other expenditures	0	1
Total expenditures	43	40
Currency translation adjustments	63	(45)
Disposal or write-downs of mineral properties	0	0
Mineral properties, ending	$ 804	$ 698

MINERAL PROPERTY INVESTMENTS (D

MINERAL PROPERTY INVESTMENTS (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Mineral Property Investments
Mineral property investments, beginning	$ 4,417	$ 4,417
Acquisition
Mineral property investments, ending	$ 4,417	$ 4,417

ACCOUNTS PAYABLE AND ACCRUED _3

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Details) - CAD ($)	Dec. 31, 2018	Dec. 31, 2017
Trade and other payables [abstract]
Accounts payable	$ 341	$ 840
Other accrued liabilities	241	243
Accounts payable and other accrued liabilities	$ 582	$ 1,083

LOANS PAYABLE (Details Narrativ

LOANS PAYABLE (Details Narrative) - CAD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018
Borrowings [abstract]
Repayments of loans payable	$ 461
Loans payable	$ 0	$ 0

SHARE CAPITAL (Details)

SHARE CAPITAL (Details)	12 Months Ended
	Dec. 31, 2018shares$ / shares	Dec. 31, 2017shares$ / shares
Disclosure Of Detailed Information About Warrants Activity Abstract
Warrants, outstanding, beginning | shares	49,693,409	50,938,672
Warrants, exercised | shares	(5,131,300)	(1,245,263)
Warrants expired | shares	(24,445,254)
Warrants, outstanding, ending | shares	20,116,855	49,693,409
Weighted average exercise price, outstanding, beginning | $ / shares	$ 0.81	$ .80
Weighted average exercise price, exercised | $ / shares	0.17	.19
Weighted average exercise price, expired | $ / shares	.80
Weighted average exercise price, outstanding, ending | $ / shares	$ 0.99	$ 0.81

SHARE CAPITAL (Details 1)

SHARE CAPITAL (Details 1)	12 Months Ended
	Dec. 31, 2018CAD ($)sharesyr	Dec. 31, 2017shares	Dec. 31, 2016shares
DisclosureOfRangeOfExercisePricesOfOutstandingWarrantsLineItems [Line Items]
Warrants, outstanding | shares	20,116,855	49,693,409	50,938,672
Weighted average exercise price, outstanding | $	$ 0.99
Weighted average remaining life, outstanding | yr	0.87
Exercise Price Range 1
DisclosureOfRangeOfExercisePricesOfOutstandingWarrantsLineItems [Line Items]
Exercise price	$ 0.01 – 0.50
Warrants, outstanding | shares	3,241,855
Weighted average exercise price, outstanding | $	$ 0.42
Weighted average remaining life, outstanding | yr	2.31
Exercise Price Range 2
DisclosureOfRangeOfExercisePricesOfOutstandingWarrantsLineItems [Line Items]
Exercise price	$ 0.51 – 1.00
Warrants, outstanding | shares	0
Weighted average exercise price, outstanding | $	$ 0
Weighted average remaining life, outstanding | yr	0
Exercise Price Range 3
DisclosureOfRangeOfExercisePricesOfOutstandingWarrantsLineItems [Line Items]
Exercise price	$ 1.01 – 1.50
Warrants, outstanding | shares	16,875,000
Weighted average exercise price, outstanding | $	$ 1.1
Weighted average remaining life, outstanding | yr	0.59

SHARE CAPITAL (Details 2)

SHARE CAPITAL (Details 2)	12 Months Ended
	Dec. 31, 2018CAD ($)shares	Dec. 31, 2017CAD ($)shares
Disclosure of classes of share capital [abstract]
Options, outstanding, beginning | shares	30,608,000	24,440,617
Options, issued | shares	9,575,000	10,630,000
Options, issued | shares	120,000	250,000
Options, issued | shares	50,000	150,000
Options, issued | shares	1,400,000	150,000
Options, issued | shares	12,075,000
Options, exercised | shares	(638,000)	(4,162,617)
Options, expired | shares	(1,950,000)	(850,000)
Options, forfeited | shares	(2,975,000)
Options, outstanding, ending | shares	48,265,000	30,608,000
Weighted average exercise price, outstanding, beginning | $	$ 0.74	$ 0.67
Weighted average exercise price, issued | $	0.6	0.85
Weighted average exercise price, issued | $	0.5	0.95
Weighted average exercise price, issued | $	0.43	0.66
Weighted average exercise price, issued | $	0.4	0.62
Weighted average exercise price, issued | $	0.4
Weighted average exercise price, exercised | $	0.17	0
Weighted average exercise price, expired | $	1.27	2
Weighted average exercise price, forfeited | $	0.68
Weighted average exercise price, outstanding, ending | $	$ 0.61	$ 0.74

SHARE CAPITAL (Details 3)

SHARE CAPITAL (Details 3)	12 Months Ended
	Dec. 31, 2018CAD ($)sharesyr	Dec. 31, 2017CAD ($)shares	Dec. 31, 2016CAD ($)shares
Disclosure of range of exercise prices of outstanding share options [line items]
Number of options, outstanding | shares	48,265,000	30,608,000	24,440,617
Weighted average exercise price, outstanding | $	$ 0.61	$ 0.74	$ 0.67
Weighted average remaining life, outstanding | yr	3.14
Number of options, exercisable | shares	39,208,750
Weighted average exercise price, exercisable | $	$ 0.65
Weighted average remaining life, exercisable | yr	2.72
Exercise Price Range 1
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price	$ 0.01 – 0.50
Number of options, outstanding | shares	18,915,000
Weighted average exercise price, outstanding | $	$ 0.4
Weighted average remaining life, outstanding | yr	3.91
Number of options, exercisable | shares	9,858,750
Weighted average exercise price, exercisable | $	$ 0.39
Weighted average remaining life, exercisable | yr	2.97
Exercise Price Range 2
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price	$ 0.51 – 1.00
Number of options, outstanding | shares	29,350,000
Weighted average exercise price, outstanding | $	$ 0.74
Weighted average remaining life, outstanding | yr	2.64
Number of options, exercisable | shares	29,350,000
Weighted average exercise price, exercisable | $	$ 0.74
Weighted average remaining life, exercisable | yr	2.64

SHARE CAPITAL (Details 4)

SHARE CAPITAL (Details 4) - CAD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
DisclosureOfSharebasedPaymentsLineItems [Line Items]
Statements of Net Loss: share-based payments	$ 3,032	$ 5,497
Share-based payments	4,201	5,552
General and administration
DisclosureOfSharebasedPaymentsLineItems [Line Items]
Statements of Net Loss: share-based payments	2,254	3,401
Exploration and evaluation
DisclosureOfSharebasedPaymentsLineItems [Line Items]
Statements of Net Loss: share-based payments	106	1,130
Investor relations and marketing
DisclosureOfSharebasedPaymentsLineItems [Line Items]
Statements of Net Loss: share-based payments	437	728
Corporate development and due diligence
DisclosureOfSharebasedPaymentsLineItems [Line Items]
Statements of Net Loss: share-based payments	235	238
Mineral properties
DisclosureOfSharebasedPaymentsLineItems [Line Items]
Statements of Financial Position: share-based payments	$ 1,169	$ 55

SHARE CAPITAL (Details 5)

SHARE CAPITAL (Details 5)	12 Months Ended
	Dec. 31, 2018CAD ($)yr	Dec. 31, 2017CAD ($)yr
Disclosure of classes of share capital [abstract]
Risk-free interest rate	1.91%	1.45%
Share price at grant date	$ 0.41	$ 0.85
Exercise price	$ 0.48	$ 0.85
Expected life | yr	5	5
Expected volatility	70.87%	70.45%
Forfeiture rate	2.64%	0.00%
Expected dividend yield

SHARE CAPITAL (Details Narrativ

SHARE CAPITAL (Details Narrative) - shares	Dec. 31, 2018	Dec. 31, 2017
Disclosure of classes of share capital [abstract]
Common shares issued and fully paid	558,316,916	552,547,616

EXPENDITURES (Details)

EXPENDITURES (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
DisclosureOfExpenseByNatureLineItems [Line Items]
General and administration	$ 4,692	$ 5,910
Exploration and evaluation	764	1,758
Investor relations and marketing communications	1,634	3,284
Corporate development and due diligence	505	340
Write-down of mineral properties (non-cash)	4,181	0
Total	11,776	11,292
Administrative and office
DisclosureOfExpenseByNatureLineItems [Line Items]
General and administration	501	485
Exploration and evaluation	139	0
Investor relations and marketing communications	33	0
Corporate development and due diligence	5	0
Total	678	485
Depreciation (non-cash)
DisclosureOfExpenseByNatureLineItems [Line Items]
General and administration	11	67
Exploration and evaluation	193	228
Investor relations and marketing communications	0	0
Corporate development and due diligence	0	0
Total	204	295
Consultants
DisclosureOfExpenseByNatureLineItems [Line Items]
General and administration	62	5
Exploration and evaluation	72	115
Investor relations and marketing communications	17	0
Corporate development and due diligence	0	11
Total	151	131
Directors fees
DisclosureOfExpenseByNatureLineItems [Line Items]
General and administration	143	142
Exploration and evaluation	0	0
Investor relations and marketing communications	0	0
Corporate development and due diligence	0	0
Total	143	142
Exploration and evaluation
DisclosureOfExpenseByNatureLineItems [Line Items]
General and administration	0	0
Exploration and evaluation	1	67
Investor relations and marketing communications	0	0
Corporate development and due diligence	0	0
Total	1	67
Investor relations and marketing communications
DisclosureOfExpenseByNatureLineItems [Line Items]
General and administration	7	0
Exploration and evaluation	7	0
Investor relations and marketing communications	803	2,015
Corporate development and due diligence	2	35
Total	819	2,050
Professional fees
DisclosureOfExpenseByNatureLineItems [Line Items]
General and administration	342	570
Exploration and evaluation	0	39
Investor relations and marketing communications	0	0
Corporate development and due diligence	0	0
Total	342	609
Salaries
DisclosureOfExpenseByNatureLineItems [Line Items]
General and administration	1,110	712
Exploration and evaluation	145	41
Investor relations and marketing communications	228	240
Corporate development and due diligence	238	56
Total	1,721	1,049
Share-based payments (non-cash)
DisclosureOfExpenseByNatureLineItems [Line Items]
General and administration	2,254	3,401
Exploration and evaluation	106	1,130
Investor relations and marketing communications	437	728
Corporate development and due diligence	235	238
Total	3,032	5,497
Transfer agent and filing fees
DisclosureOfExpenseByNatureLineItems [Line Items]
General and administration	162	452
Exploration and evaluation	0	0
Investor relations and marketing communications	8	0
Corporate development and due diligence	0	0
Total	170	452
Travel and accommodation
DisclosureOfExpenseByNatureLineItems [Line Items]
General and administration	100	76
Exploration and evaluation	101	138
Investor relations and marketing communications	108	301
Corporate development and due diligence	25	0
Total	$ 334	$ 515

SEGMENT INFORMATION (Details)

SEGMENT INFORMATION (Details) - CAD ($)	Dec. 31, 2018	Dec. 31, 2017
Disclosure of operating segments [line items]
Total non-current assets	$ 244,997	$ 240,836
Canada
Disclosure of operating segments [line items]
Total non-current assets	243,854	236,572
Mexico
Disclosure of operating segments [line items]
Total non-current assets	334	3,560
USA
Disclosure of operating segments [line items]
Total non-current assets	$ 809	$ 704

INCOME TAXES (Details)

INCOME TAXES (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Taxes
Net loss before income tax	$ 11,645	$ 11,184
Combined Canadian statutory income tax rate	27.00%	26.00%
Income tax recovery computed at statutory income tax	$ 3,144	$ 2,908
Tax effect of:
Permanent differences	(599)	(982)
Difference in tax rates in foreign jurisdictions	128	4
Changes in estimate and others	(539)	5,018
Changes in unrecognized deferred tax assets	(2,134)	(6,948)
Income tax expense (recovery)	$ 0	$ 0

INCOME TAXES (Details 1)

INCOME TAXES (Details 1) - CAD ($)	Dec. 31, 2018	Dec. 31, 2017
DisclosureOfDeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Deferred income tax assets, net	$ 0	$ 0
Mineral properties
DisclosureOfDeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Deferred income tax assets, net	1,417	(139)
Others
DisclosureOfDeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Deferred income tax assets, net	1,091	730
Unrecognized deferred tax assets
DisclosureOfDeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Deferred income tax assets, net	(32,194)	(30,058)
Non-capital loss carryforwards
DisclosureOfDeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Deferred income tax assets, net	24,172	23,793
Net capital loss carryforwards
DisclosureOfDeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Deferred income tax assets, net	1,580	1,580
Investment tax credits
DisclosureOfDeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Deferred income tax assets, net	3,857	3,979
Undeducted financing costs and others
DisclosureOfDeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Deferred income tax assets, net	$ 77	$ 115

INCOME TAXES (Details Narrative

INCOME TAXES (Details Narrative) - CAD ($)	Dec. 31, 2018	Dec. 31, 2017
Canada
DisclosureOfIncomeTaxesLineItems [Line Items]
Non-capital loss carryforwards	$ 87,300	$ 86,500
Capital loss carryforwards	5,900	5,900
Mexico
DisclosureOfIncomeTaxesLineItems [Line Items]
Non-capital loss carryforwards	5,282	5,500
Capital loss carryforwards	$ 1,603	$ 1,100

RELATED PARTY TRANSACTIONS (Det

RELATED PARTY TRANSACTIONS (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Related party transactions [abstract]
Directors' fees	$ 143	$ 142
Salaries and consultants' fees	1,208	871
Severance payments	410	0
Share-based payments (non-cash)	2,991	4,381
Total	$ 4,752	$ 5,394

SUPPLEMENTAL CASH FLOW INFORM_3

SUPPLEMENTAL CASH FLOW INFORMATION (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
DisclosureOfSupplementalCashFlowsInformationLineItems [Line Items]
Liabilities from financing activities, beginning	$ 0	$ 2,561
Cash payments	0	(661)
Non-cash changes
Interest accrual	0	6
Changes in estimate	0	1,196
Debenture converted to shares	0	(3,102)
Liabilities from financing activities, ending	0	0
Loans payable
DisclosureOfSupplementalCashFlowsInformationLineItems [Line Items]
Liabilities from financing activities, beginning	0	455
Cash payments	0	(461)
Non-cash changes
Interest accrual	0	6
Changes in estimate	0	0
Debenture converted to shares	0	0
Liabilities from financing activities, ending	0	0
Debenture liability
DisclosureOfSupplementalCashFlowsInformationLineItems [Line Items]
Liabilities from financing activities, beginning	0	2,106
Cash payments	0	(200)
Non-cash changes
Interest accrual	0	0
Changes in estimate	0	1,196
Debenture converted to shares	0	(3,102)
Liabilities from financing activities, ending	$ 0	$ 0

FAIR VALUE (Details)

FAIR VALUE (Details) - CAD ($)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial assets [line items]
Marketable securities	$ 2,597	$ 4,277
Mineral property investments	4,417	4,417	$ 4,417
Total	7,014	8,694
Level 1
Disclosure of financial assets [line items]
Marketable securities	2,597	4,277
Mineral property investments	0	0
Total	2,597	4,277
Level 3
Disclosure of financial assets [line items]
Marketable securities	0	0
Mineral property investments	4,417	4,417
Total	$ 4,417	$ 4,417

FAIR VALUE (Details 1)

FAIR VALUE (Details 1) - CAD ($)	Dec. 31, 2018	Dec. 31, 2017
Disclosure of fair value measurement of assets [line items]
Financial assets at amortized cost	$ 5,248	$ 15,542
Financial assets at fair value through other comprehensive income	7,014	8,694
Total financial assets	12,262	24,236
Financial liabilities at amortized cost	582	1,083
Accounts payable and accrued liabilities
Disclosure of fair value measurement of assets [line items]
Financial assets at amortized cost	0	0
Financial assets at fair value through other comprehensive income	0	0
Financial liabilities at amortized cost	582	1,083
Total financial liabilities	582	1,083
Cash and cash equivalents
Disclosure of fair value measurement of assets [line items]
Financial assets at amortized cost	5,115	15,400
Financial assets at fair value through other comprehensive income	0	0
Total financial assets	5,115	15,400
Financial liabilities at amortized cost	0	0
Current accounts and other receivables
Disclosure of fair value measurement of assets [line items]
Financial assets at amortized cost	17	26
Financial assets at fair value through other comprehensive income	0	0
Total financial assets	17	26
Financial liabilities at amortized cost	0	0
Marketable securities
Disclosure of fair value measurement of assets [line items]
Financial assets at amortized cost	0	0
Financial assets at fair value through other comprehensive income	2,597	4,277
Total financial assets	2,597	4,227
Financial liabilities at amortized cost	0	0
Mineral property investments
Disclosure of fair value measurement of assets [line items]
Financial assets at amortized cost	0	0
Financial assets at fair value through other comprehensive income	4,417	4,417
Total financial assets	4,417	4,417
Financial liabilities at amortized cost	0	0
Reclamation deposit
Disclosure of fair value measurement of assets [line items]
Financial assets at amortized cost	116	116
Financial assets at fair value through other comprehensive income	0	0
Total financial assets	116	116
Financial liabilities at amortized cost	$ 0	$ 0

FINANCIAL AND CAPITAL RISK MA_3

FINANCIAL AND CAPITAL RISK MANAGEMENT (Details) - CAD ($)	Dec. 31, 2018	Dec. 31, 2017
DisclosureOfLiquidityRiskExposureLineItems [Line Items]
Accounts payable and accrued liabilities	$ 582	$ 1,083
Contractual Cash Flows
DisclosureOfLiquidityRiskExposureLineItems [Line Items]
Accounts payable and accrued liabilities	582
Less than 1 year
DisclosureOfLiquidityRiskExposureLineItems [Line Items]
Accounts payable and accrued liabilities	582
1 - 3 years
DisclosureOfLiquidityRiskExposureLineItems [Line Items]
Accounts payable and accrued liabilities	0
4 - 5 years
DisclosureOfLiquidityRiskExposureLineItems [Line Items]
Accounts payable and accrued liabilities	0
After 5 years
DisclosureOfLiquidityRiskExposureLineItems [Line Items]
Accounts payable and accrued liabilities	$ 0

FINANCIAL AND CAPITAL RISK MA_4

FINANCIAL AND CAPITAL RISK MANAGEMENT (Details Narrative) - CAD ($)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of credit risk exposure [abstract]
Cash and cash equivalents	$ 5,115	$ 15,400	$ 33,157

Uncategorized Items - ffmgf-201

Label	Element	Value
Cash	ifrs-full_Cash	$ 867
Cash	ifrs-full_Cash	5,184
Term deposits	ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents	4,248
Term deposits	ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents	$ 10,216