Corvus Gold ULC (KOR) 10-K 13 Aug 20 2020 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	May 31, 2020	Aug. 13, 2020	Nov. 30, 2019
Document Information [Line Items]
Entity Registrant Name	Corvus Gold Inc.
Entity Central Index Key	0001507964
Trading Symbol	kor
Current Fiscal Year End Date	--05-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Interactive Data Current	Yes
Entity Common Stock, Shares Outstanding (in shares)		123,987,845
Entity Public Float			$ 80,521,510
Entity Shell Company	false
Document Type	10-K
Document Period End Date	May 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
Title of 12(b) Security	Common Shares, no par value

Consolidated Balance Sheets

Consolidated Balance Sheets	May 31, 2020CAD ($)	May 31, 2019CAD ($)
Current assets
Cash and cash equivalents	$ 14,913,158	$ 4,145,085
Accounts receivable	161,305	49,658
Prepaid expenses	389,433	354,971
Total current assets	15,463,896	4,549,714
Property and equipment	38,630	45,016
Right-of-use assets (note 2)	48,978
Capitalized acquisition costs (note 4)	5,831,924	5,619,005
Total assets	21,383,428	10,213,735
Current liabilities
Accounts payable and accrued liabilities (note 6)	895,848	345,632
Total current liabilities	895,848	345,632
Asset retirement obligations (note 4)	373,103	419,286
Lease liabilities (note 2)	52,475
Total liabilities	1,321,426	764,918
Shareholders’ equity
Share capital (note 5)	120,960,869	97,726,772
Contributed surplus (note 5)	14,857,390	11,467,753
Accumulated other comprehensive income - cumulative translation differences	1,578,326	1,382,223
Deficit accumulated during the exploration stage	(117,334,583)	(101,127,931)
Total shareholders’ equity	20,062,002	9,448,817
Total liabilities and shareholders’ equity	$ 21,383,428	$ 10,213,735

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Loss - CAD ($)	12 Months Ended
	May 31, 2020	May 31, 2019
Operating expenses
Administration	$ 429	$ 430
Consulting fees (notes 5 and 6)	1,931,197	1,054,967
Depreciation	61,513	15,069
Exploration expenditures (notes 4 and 5)	9,766,264	5,636,641
Insurance	234,846	213,548
Investor relations (notes 5 and 6)	1,631,230	1,308,792
Office and miscellaneous	139,338	119,687
Professional fees (note 5)	374,012	376,322
Regulatory	185,277	162,313
Rent	18,179	74,529
Travel	272,674	275,602
Wages and benefits (notes 5 and 6)	2,264,435	1,782,198
Total operating expenses	(16,879,394)	(11,020,098)
Other income
Interest income	255,410	76,835
Foreign exchange gain	417,332	85,258
Total other income	672,742	162,093
Net loss for the year	(16,206,652)	(10,858,005)
Other comprehensive income
Exchange difference on translating foreign operations	196,103	258,813
Comprehensive loss for the year	$ (16,010,549)	$ (10,599,192)
Basic and diluted net loss per share (in CAD per share)	$ (0.14)	$ (0.10)
Weighted average number of shares outstanding (in shares)	119,748,842	108,584,442

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - CAD ($)	12 Months Ended
	May 31, 2020	May 31, 2019
Operating activities
Net loss for the year	$ (16,206,652)	$ (10,858,005)
Add items not affecting cash:
Depreciation	61,513	15,069
Stock-based compensation (note 5)	3,389,637	1,633,957
Foreign exchange gain	(417,332)	(85,258)
Changes in non-cash items:
Accounts receivable	(111,647)	(24,220)
Prepaid expenses	(34,462)	(98,199)
Accounts payable and accrued liabilities	550,216	14,928
Asset retirement obligations	(54,242)
Cash used in operating activities	(12,822,969)	(9,401,728)
Financing activities
Cash received from issuance of shares	25,200,000	10,894,926
Share issuance costs	(2,014,653)	(31,059)
Lease liabilities payments	(45,905)
Cash provided by financing activities	23,139,442	10,863,867
Investing activities
Expenditures on property and equipment	(5,151)	(1,769)
Capitalized acquisition costs	(51,705)	(47,318)
Cash used in investing activities	(56,856)	(49,087)
Effect of foreign exchange on cash	508,456	121,492
Increase in cash and cash equivalents	10,768,073	1,534,544
Cash and cash equivalents, beginning of the year	4,145,085	2,610,541
Cash and cash equivalents, end of the year	$ 14,913,158	$ 4,145,085

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - CAD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at May. 31, 2018	104,255,175
Balance at May. 31, 2018	$ 83,606,486	$ 13,030,715	$ 1,123,410	$ (90,269,926)	$ 7,490,685
Net loss for the year				(10,858,005)	(10,858,005)
Private placement (in shares)	2,530,770
Private placement	$ 6,580,002				$ 6,580,002
Exercise of stock options (in shares)	4,651,900				4,651,900
Exercise of stock options	$ 4,314,924				$ 4,314,924
Share issued for capitalized acquisition costs (in shares)	25,000
Share issued for capitalized acquisition costs	$ 59,500				59,500
Exchange difference on translating foreign operations			258,813		258,813
Share issuance costs	(31,059)				(31,059)
Reclassification of contributed surplus on exercise of stock options	3,196,919	(3,196,919)
Stock-based compensation		1,633,957			1,633,957
Balance (in shares) at May. 31, 2019	111,462,845
Balance at May. 31, 2019	$ 97,726,772	11,467,753	1,382,223	(101,127,931)	9,448,817
Net loss for the year				(16,206,652)	$ (16,206,652)
Exercise of stock options (in shares)
Share issued for capitalized acquisition costs (in shares)	25,000
Share issued for capitalized acquisition costs	$ 48,750				$ 48,750
Exchange difference on translating foreign operations			196,103		196,103
Share issuance costs	(2,014,653)				(2,014,653)
Stock-based compensation		3,389,637			3,389,637
Shares issued for cash (in shares)	12,500,000
Shares issued for cash	$ 25,200,000				25,200,000
Balance (in shares) at May. 31, 2020	123,987,845
Balance at May. 31, 2020	$ 120,960,869	$ 14,857,390	$ 1,578,326	$ (117,334,583)	$ 20,062,002

Note 1 - Nature and Continuance

Note 1 - Nature and Continuance of Operations	12 Months Ended
	May 31, 2020
Notes to Financial Statements
Nature of Operations [Text Block]	1. NATURE AND CONTINUANCE OF OPERATIONS On August 25, 2010, The Company was incorporated on April 13, 2010 Business Corporations Act June 1, 2006. The Company is engaged in the business of acquiring, exploring and evaluating mineral properties, and either joint venturing or developing these properties further or disposing of them when the evaluation is completed. At May 31, 2020, The business of mining and exploration involves a high degree of risk and there can be no no not These consolidated financial statements have been prepared on a going concern basis, which presume the realization of assets and discharge of liabilities in the normal course of business for the foreseeable future. The Company's ability to continue as a going concern is dependent upon achieving profitable operations and/or obtaining additional financing. In assessing whether the going concern assumption is appropriate, management takes into account all available information about the future within one The Company has sustained significant losses from operations, has negative cash flows, and has an ongoing requirement for capital investment to explore its mineral properties. As at May 31, 2020, $14,568,048 $4,204,082 May 31, 2019. June 5, 2019, 500,000 $1.80 $900,000. August 19, 2019, 500,000 $2.60 $1,300,000. October 10, 2019, 11,500,000 $2.00 $23,000,000. 12 The Company expects that it will need to raise substantial additional capital to accomplish its business plan over the next several years. There is no no not may may may not not These consolidated financial statements do not All currency amounts are stated in Canadian dollars unless noted otherwise.

Note 2 - Significant Accounting

Note 2 - Significant Accounting Policies	12 Months Ended
	May 31, 2020
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2. SIGNIFICANT ACCOUNTING POLICIES Basis of presentation These consolidated financial statements are presented in Canadian dollars and have been prepared in accordance with generally accepted accounting principles in the United States (“US GAAP”). Basis of consolidation These consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries (collectively, the “Group”), Corvus Gold (USA) Inc. (“Corvus USA”) (a Nevada corporation), Corvus Gold Nevada Inc. (“Corvus Nevada”) (a Nevada corporation), Raven Gold Alaska Inc. (“Raven Gold”) (an Alaska corporation), SoN Land and Water LLC (“SoN”) (a Nevada limited liability company) and Mother Lode Mining Company LLC (a Nevada limited liability company). All intercompany transactions and balances were eliminated upon consolidation. Significant judgments, estimates and assumptions The preparation of these financial statements in accordance with US GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and reported amounts of expenses during the reporting year. Actual outcomes could differ from these estimates. These financial statements include estimates which, by their nature, are uncertain. The impacts of such estimates are pervasive throughout the financial statements, and may Significant estimates Significant assumptions about the future and other sources of estimation uncertainty that management has made at the end of the reporting year, that could result in a material adjustment to the carrying amounts of assets and liabilities, in the event that actual results differ from assumptions made, relate to, but are not Significant judgments Critical accounting judgments are accounting policies that have been identified as being complex or involving subjective judgments or assessments. The Company made the following critical accounting judgments: · The determination of deferred tax assets and liabilities. · The analysis of resource calculations, drill results, laboratory work, etc., which can impact the Company's assessment of impairments, and provisions, if any, for environmental rehabilitation and restorations. · The determination of functional currency. Using the currency of the primary economic environment in which each of the parent company and its subsidiaries operates. · The assessment of the Company's ability to continue as a going concern. Cash and cash equivalents Cash equivalents include highly liquid investments in term deposits that are readily convertible to known amounts of cash with original maturities of three three 30 no Foreign currency translation The presentation currency of the Company is the Canadian dollar. The functional currency of each of the parent company and its subsidiaries is measured using the currency of the primary economic environment in which that entity operates. The functional currency of Corvus USA, Corvus Nevada, Raven Gold, SoN, and Mother Lode Mining Company LLC is US dollars, and for the Company the functional currency is Canadian dollars. Transactions and balances Foreign currency transactions are translated into the functional currency using the exchange rates prevailing at the date of the transaction. Foreign currency monetary items are translated at the year-end exchange rate. Non-monetary items measured at historical cost continue to be carried at the exchange rate at the date of the transaction. Non-monetary items measured at fair value are reported at the exchange rate at the date when fair values were determined. Exchange differences arising on the translation of monetary items or on settlement of monetary items are recognized in profit or loss in the Statement of Operations and Comprehensive Loss in the year in which they arise. Exchange differences arising on the translation of non-monetary items are recognized in other comprehensive income (loss) in the Statement of Operations and Comprehensive Loss to the extent that gains and losses arising on those non-monetary items are also recognized in other comprehensive income (loss). Where the non-monetary gain or loss is recognized in profit or loss, the exchange component is also recognized in profit or loss. Parent and Subsidiary Companies The financial results and position of foreign operations whose functional currency is different from the presentation currency are translated as follows: · Assets and liabilities are translated at year-end exchange rates prevailing at that reporting date; and · Income and expenses are translated at monthly average exchange rates during the year. Exchange differences arising on translation of foreign operations are transferred directly to the Group's exchange difference on translating foreign operations in the Statement of Operations and Comprehensive Loss and are reported as a separate component of shareholders' equity titled “Cumulative Translation Differences”. These differences are recognized in profit or loss in the year in which the operation is disposed of. Property and equipment a) Recognition and measurement On initial recognition, property and equipment are valued at cost, being the purchase price and directly attributable costs of acquisition or construction required to bring the asset to the location and condition necessary to be capable of operating in the manner intended by the Company, including appropriate borrowing costs and the estimated present value of any future unavoidable costs of dismantling and removing items. Property and equipment is subsequently measured at cost less accumulated depreciation, less any accumulated impairment losses, with the exception of land which is not When parts of an item of property and equipment have different useful lives, they are accounted for as separate items (major components) of property and equipment. b) Subsequent costs The cost of replacing part of an item of property and equipment is recognized in the carrying amount of the item if it is probable that the future economic benefit embodied within the part will flow to the Company and its cost can be measured reliably. The carrying amount of the replaced part is derecognized. The costs of the day-to-day servicing of property and equipment are recognized in profit or loss as incurred. c) Major maintenance and repairs Subsequent costs are included in the asset's carrying amount or recognized as a separate asset, as appropriate, only when it is probable that future economic benefits associated with the item will flow to the Company and the cost of the item can be measured reliably. All other repairs and maintenance expenditures are charged to profit or loss during the financial year in which they are incurred. d) Gains and losses Gains and losses on disposal of an item of property and equipment are determined by comparing the proceeds from disposal with the carrying amount, and are recognized net within other items in profit or loss. e) Depreciation Depreciation is recognized in profit or loss on a declining-balance basis at the following annual rates: Computer equipment - 30% Vehicles - 30% Tent - 20% Additions during the year are depreciated at one Depreciation methods, useful lives and residual values are reviewed at each financial year-end and adjusted if appropriate. Mineral properties and exploration and evaluation expenditures The Company's mineral projects are currently in the exploration and evaluation phase. All direct costs related to the acquisition of mineral property interests are capitalized. Mineral property exploration costs are expensed as incurred. At such time that the Company determines that a mineral property can be economically developed, subsequent mineral property expenses will be capitalized during the development of such property. Impairment of long-lived assets The Company assesses long-lived assets for impairment or when facts and circumstances suggest that the carrying amount of an asset may not, not 50%. Asset retirement obligations The Company records a liability based on the best estimate of costs for site closure and reclamation activities that the Company is legally or contractually required to remediate at the time environmental disturbance occurs. The provision for closure and reclamation liabilities is estimated using expected cash flows based on engineering and environmental reports and accreted to full value over time through periodic charges to profit or loss. As at May 31, 2020, $373,103 270,000 2019 $419,286 310,000 Income taxes The Company accounts for income taxes under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Under the asset and liability method, the effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is recognized if it is more likely than not not Share capital The proceeds from the exercise of stock options, warrants and escrow shares are recorded as share capital in the amount for which the option, warrant or escrow share enabled the holder to purchase a share in the Company. Commissions paid to agents, and other related share issuance costs, such as legal, auditing, and printing, on the issue of the Company's shares are charged directly to share capital. Valuation of equity units issued in private placements The Company has adopted a residual value method with respect to the measurement of shares and warrants issued as private placement units. The residual value method first The fair value of the common shares issued in the private placements was determined to be the more easily measurable component and were valued at their fair value, as determined by the closing quoted bid price on the announcement date. The balance, if any, is allocated to the attached warrants. Any fair value attributed to the warrants is recorded as contributed surplus. Upon exercise of the warrants, the related fair value is reallocated to share capital. Earnings (loss) per share Basic loss per share is calculated using the weighted average number of common shares outstanding during the year. The Company uses the treasury stock method to compute the dilutive effect of options, warrants and similar instruments. Under this method, the dilutive effect on earnings (loss) per share is calculated presuming the exercise of outstanding options, warrants and similar instruments. It assumes that the proceeds of such exercise would be used to repurchase common shares at the average market price during the year. However, the calculation of diluted loss per share excludes the effects of various conversions and exercise of options and warrants that would be anti-dilutive. For the year ended May 31, 2020, 12,345,000 2019 10,000,000 not Stock-based compensation The Company follows the provisions of Financial Accounting Standards Board Accounting Standards Codification Section 718 Non-monetary transactions All non-monetary transactions are measured at the fair value of the asset surrendered or the asset received, whichever is more reliable, unless the transaction lacks commercial substance or the fair value cannot be reliably established. The commercial substance requirement is met when the future cash flows are expected to change significantly as a result of the transaction. When the fair value of a non-monetary transaction cannot be reliably measured, it is recorded at the carrying amount (after reduction, when appropriate, for impairment) of the asset given up adjusted by the fair value of any monetary consideration received or given. When the asset received or the consideration given up is shares in an actively traded market, the value of those shares will be considered fair value. Joint venture accounting Where the Company's exploration and development activities are conducted with others, the accounts reflect only the Company's proportionate interest in such activities. The Company currently is not Adoption of New Accounting Standards and Amendments Accounting Standards Update: No. 2016 02 842 842 Effective June 1, 2019, Topic 842 (a) The Company's accounting policy under Topic 842 Definition of a lease At inception of a contract, the Company assesses whether a contract is, or contains, a lease based on whether the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. The Company has elected to apply the practical expedient to grandfather the lease definition for existing contracts on transition. It applied the definition of a lease under Topic 842 June 1, 2019. The Company has also elected to apply the practical expedient to account for each lease component and any non-lease components as a single lease component. As a lessee The Company leases its head office space, based on lease agreement having a fixed duration until January 30, 2023 ( May 22, 2020 July 31, 2020) August 31, 2020 one August 31, 2021. The Company recognizes a right-of-use asset and a lease liability at the lease commencement date. The right-of-use asset is initially measured at cost, based on the initial amount of the lease liability. The assets are depreciated to the earlier of the end of the useful life of the right-of-use asset or the lease term using the straight-line method as this most closely reflects the expected pattern of consumption of the future economic benefits. The lease term includes periods covered by an option to extend if the Company is reasonably certain to exercise that option. In addition, the right-of-use asset is periodically adjusted for certain remeasurements of the lease liability. The lease liability is initially measured at the present value of the lease payments that are not The ongoing lease liability is measured at amortized cost using the effective interest method. It is measured when there is a change in future lease payments, if there is a change in the Company's estimate of the amount expected to be payable under a residual value guarantee, or if the Company changes its assessment of whether it will exercise a purchase, extension or termination option. When the lease liability is remeasured in this way a corresponding adjustment is made to the carrying amount of the right-of-use asset or is recorded in profit or loss if the carrying amount of the right-of-use asset has been reduced to zero. (b) Impact of transition to Topic 842 Effective June 1, 2019, Topic 842 May 31, 2019 not June 1, 2019. May 31, 2019 On initial application, the Company has elected to record right-of-use assets based on the corresponding lease receivables and/or lease liabilities. Lease receivables and liabilities have been measured by discounting future lease payments at the incremental borrowing rate at June 1, 2019. 10% Topic 842 three eight The Company has elected to apply the practical expedient to account for leases for which the lease term ends within 12 The Company has also elected to apply the practical expedient for excluding the initial direct costs for the measurement of right-of-use assets at the date of initial application, as well as for using hindsight in determining the lease term where the contract contains options to extend or terminate the lease. The application of Topic 842 June 1, 2019 June 1, 2019 Topic 842 – Lease Adjustments June 1, 2019 Non-current assets: Right-of-use assets $ – $ 88,957 $ 88,957 Non-current liabilities Lease liabilities $ – $ 88,957 $ 88,957 Recently Issued Accounting Standards Updates Accounting Standards Update No. 2019 01 842 March 2019, 2019 01 not 942; December 15, 2019. January 1, 2020. no Early adoption is permitted. The adoption of the guidance will have an immaterial impact on the Company's consolidated financial statements and disclosures.

Note 3 - Fair Value of Financia

Note 3 - Fair Value of Financial Instruments	12 Months Ended
	May 31, 2020
Notes to Financial Statements
Fair Value Disclosures [Text Block]	3. FAIR VALUE OF FINANCIAL INSTRUMENTS Financial instruments recorded at fair value are classified using a fair value hierarchy that reflects the significance of the inputs used in making the measurements. The fair value hierarchy has the following levels: Level 1 – valuation based on quoted prices (unadjusted) in active markets for identical assets or liabilities; Level 2 – valuation techniques based on inputs other than quoted prices included in level 1 Level 3 – valuation techniques using inputs for the asset or liability that are not The fair value hierarchy requires the use of observable market inputs whenever such inputs exist. A financial instrument is classified to the lowest level of the hierarchy for which a significant input has been considered in measuring fair value. The following table presents the financial instruments recorded at fair value, classified using the fair value hierarchy described above: May 31, 2020 Level 1 Cash and cash equivalents $ 14,913,158 May 31, 2019 Level 1 Cash and cash equivalents $ 4,145,085

Note 4 - Mineral Properties

Note 4 - Mineral Properties	12 Months Ended
	May 31, 2020
Notes to Financial Statements
Mineral Industries Disclosures [Text Block]	4. MINERAL PROPERTIES The Company had the following activity related to capitalized acquisition costs: North Bullfrog Mother Lode Total (note 4(a)) (note 4(b)) Balance, May 31, 2018 $ 4,428,752 $ 810,037 $ 5,238,789 Acquisition costs Cash payments (note 4(a)(ii)(1)) 47,318 – 47,318 Shares issued (notes 4(a)(ii)(1) and 5) 59,500 – 59,500 Asset retirement obligations 24,765 11,485 36,250 Currency translation adjustments 200,922 36,226 237,148 Balance, May 31, 2019 4,761,257 857,748 5,619,005 Acquisition costs Cash payments (note 4(a)(ii)(1)) 51,705 – 51,705 Shares issued (notes 4(a)(ii)(1) and 5) 48,750 – 48,750 Currency translation adjustments 95,978 16,486 112,464 Balance, May 31, 2020 $ 4,957,690 $ 874,234 $ 5,831,924 The following table presents costs incurred for exploration and evaluation activities for the year ended May 31, 2020: North Bullfrog Mother Lode Alaskan Total (note 4(a)) (note 4(b)) (note 4(c)) Exploration costs: Assay $ 388,167 $ 340,989 $ – $ 729,156 Asset retirement obligations (42,724 ) (11,519 ) – (54,243 ) Drilling 1,401,882 3,284,109 – 4,685,991 Equipment rental 63,267 55,197 – 118,464 Field costs 259,936 931,930 – 1,191,866 Geological/ Geophysical 579,158 756,236 – 1,335,394 Land maintenance & tenure 471,520 130,044 – 601,564 Permits 26,760 71,609 – 98,369 Studies 843,856 353,796 – 1,197,652 Travel 63,376 117,212 – 180,588 4,055,198 6,029,603 – 10,084,801 Cost recovery – – (318,537 ) (318,537 ) Total expenditures (recovery) for the year $ 4,055,198 $ 6,029,603 $ (318,537 ) $ 9,766,264 The following table presents costs incurred for exploration and evaluation activities for the year ended May 31, 2019: North Bullfrog Mother Lode Total (note 4(a)) (note 4(b)) Exploration costs: Assay $ 14,839 $ 567,274 $ 582,113 Drilling 208,421 1,788,433 1,996,854 Equipment rental 33,173 66,780 99,953 Field costs 13,620 248,059 261,679 Geological/ Geophysical 83,972 650,424 734,396 Land maintenance & tenure 414,636 271,749 686,385 Permits 7,546 155,661 163,207 Studies 98,904 891,297 990,201 Travel 14,035 107,818 121,853 Total expenditures for the year $ 889,146 $ 4,747,495 $ 5,636,641 (a) North Bullfrog Project, Nevada The Company's North Bullfrog project consists of certain leased patented lode mining claims and federal unpatented mining claims owned 100% (i) Interests acquired from Redstar Gold Corp. On October 9, 2009, six 33 ten The Company is required to pay annual advance minimum royalty payments (recoupable from production royalties) for as long as there are mining activities continuing on the claims or contiguous claims held by the Company. The required annual advance minimum royalty payments are: · 39,800 · 17,700 The lessor is entitled to receive a separate NSR royalty related to all production from the leased property of the various individual leases which may · a 4% may 1,250,000 1% 5,000,000 · a 2% may 1,000,000 1% 2,000,000 · a 3% may 850,000 1% 2,550,000 · a 3% may 770,000 1% 2,310,000 · a 4% may 1,000,000 1% 4,000,000 · a 2% may 1,000,000 1% 2,000,000 · a 2% may 1,000,000 1% 2,000,000 The various NSR royalties above relate only to the property covered by each specific lease and are not The Company has an option to purchase a property related to twelve 1,000,000 4% may 1,250,000 1% 5,000,000 (ii) Interests acquired directly by Corvus Nevada ( 1 Pursuant to a mining lease and option to purchase agreement made effective December 1, 2007 · Terms: Initial term of five December 1, 2007, five January 15, 2016 November 22, 2017, ten · Lease Payments: Corvus Nevada will pay USD 10,000 50,000 · Anti-Dilution: Pursuant to an amended agreement agreed to by the lessors in March 2015, 25,000 · Work Commitments: USD 100,000 first three 200,000 four six 300,000 seven ten 300,000 11 20 may not · Retained Royalty: Corvus Nevada will pay the lessors a NSR royalty of 2% 400 3% 401 500 4% 500 ( 2 Pursuant to a mining lease and option to purchase made effective March 1, 2011 two ten ten not 30,000 March 1, 2020), 2% may 1,000,000 1%. 2,000,000 ( 3 Pursuant to a purchase agreement made effective March 28, 2013, five two 160,000 March 28, 2013). 0.02 12 240,000 4.77% December 31, 2015 ( December 17, 2015). $406,240 400,000 $157,408 $248,832 240,000 May 31, 2013. ( 4 In December 2013, 30 1,600 $1,100,118 1,034,626 ( 5 On March 30, 2015, three 2014. three seven 5,000 5,000 March 2020). 4% 500,000 1% 2,000,000 4% 300,000. (b) Mother Lode Property, Nevada Pursuant to a purchase agreement made effective June 9, 2017 100% two 1,000,000 $0.81 1% 1,400 1% 2% 1,400 (c) Alaskan Royalty Interest, Alaska On June 7, 2019, four $350,000. $31,463 $318,537. The general terms of the Alaskan royalty package sale include: · Chisna project 1% · LMS project 3% · Goodpaster District 1% · West Pogo project 2% 1% Acquisitions The acquisition of title to mineral properties is a detailed and time-consuming process. The Company has taken steps, in accordance with industry norms, to verify title to mineral properties in which it has an interest. Although the Company has taken every reasonable precaution to ensure that legal title to its properties is properly recorded in the name of the Company (or, in the case of an option, in the name of the relevant optionor), there can be no Environmental Expenditures The operations of the Company may not Environmental expenditures that relate to ongoing environmental and reclamation programs are charged against earnings as incurred or capitalized and amortized depending on their future economic benefits. Estimated future removal and site restoration costs, when the ultimate liability is reasonably determinable, are charged against earnings over the estimated remaining life of the related business operation, net of expected recoveries. The Company has estimated the fair value of the liability for asset retirement that arose as a result of exploration activities to be $373,103 270,000 May 31, 2019 - $419,286 310,000 not

Note 5 - Share Capital

Note 5 - Share Capital	12 Months Ended
	May 31, 2020
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	5. SHARE CAPITAL Authorized Unlimited common shares without par value. Share issuances During the year ended May 31, 2020: (a) On June 5, 2019, 500,000 $1.80 $900,000. $7,701 (b) On August 19, 2019, 500,000 $2.60 $1,300,000. $8,927 (c) On October 10, 2019, 11,500,000 $2.00 $23,000,000. $1,998,025 (d) On October 18, 2019, 25,000 4 1 $48,750. During the year ended May 31, 2019: (a) On June 7, 2018, 1,730,770 $2.60 $4,500,002. $14,605 (b) On November 26, 2018, 25,000 4 1 $59,500. $6,212 (c) In November 2018, 4,036,900 4,036,900 $0.86 $3,453,924. (d) On December 20, 2018, 800,000 $2.60 $2,080,000. $10,242 (e) In April 2019, 615,000 615,000 $1.40 $861,000. Stock options Stock options awarded to employees and non-employees by the Company are measured and recognized in the Consolidated Statement of Operations and Comprehensive Loss over the vesting period. The Company has adopted an incentive stock option plan, first 2010 2013 2010 2010 may 2010 may may not 10% 2010 ten 2010 not 5 5 may 2010 A summary of the status of the stock option plan as of May 31, 2020, 2019, 2020 2019 Number of Weighted Number of Weighted Balance, beginning of the year 10,000,000 $ 1.40 9,861,900 $ 0.85 Granted 2,345,000 2.13 4,920,000 2.06 Exercised – – (4,651,900 ) (0.93 ) Forfeited – – (130,000 ) (1.81 ) Balance, end of the year 12,345,000 $ 1.54 10,000,000 $ 1.40 The weighted average remaining contractual life of options outstanding at May 31, 2020 2.68 2019 3.25 Stock options outstanding are as follows: 2020 2019 Expiry Date Exercise Number of Exercisable Exercise Number of Exercisable September 8, 2019* $ 1.40 635,000 635,000 $ 1.40 635,000 635,000 September 9, 2020 $ 0.46 620,000 620,000 $ 0.46 620,000 620,000 November 13, 2020 $ 0.49 1,000,000 1,000,000 $ 0.49 1,000,000 1,000,000 September 15, 2021 $ 0.91 1,085,000 1,085,000 $ 0.91 1,085,000 1,085,000 July 31, 2022 $ 0.77 1,840,000 1,225,440 $ 0.77 1,840,000 612,720 October 11, 2022 $ 2.00 20,000 13,322 $ – – – November 19, 2023 $ 2.06 4,420,000 1,471,860 $ 2.06 4,420,000 – April 9, 2024 $ 2.04 400,000 133,200 $ 2.04 400,000 – June 13, 2024 $ 2.18 1,115,000 – $ – – – February 3, 2025 $ 2.09 1,210,000 – $ – – – 12,345,000 6,183,822 10,000,000 3,952,720 *The Company's share trading policy (the “Policy”) requires that all restricted persons and others who are subject to the Policy refrain from conducting any transactions involving the purchase or sale of the Company's securities, during the period in any quarter commencing 30 2010 not not ten The Company uses the fair value method for determining stock-based compensation for all options granted during the years. The fair value of options granted was $2,974,411 2019 $7,442,708 For the year ended May 31, 2020 2019 Risk-free interest rate 1.32 % 2.22 % Expected life of options (in years) 4.98 5 Annualized volatility 72.09 % 73.88 % Dividend yield 0 % 0 % Exercise price $ 2.13 $ 2.06 Fair value per share $ 1.27 $ 1.51 Annualized volatility was determined by reference to historic volatility of the Company. Stock-based compensation has been allocated to the same expenses as cash compensation paid to the same employees or consultants, as follows: For the year ended May 31, 2020 2019 Consulting fees $ 1,591,400 $ 728,748 Exploration expenditures – Geological/geophysical 294,760 140,318 Investor relations 470,910 218,853 Professional fees 26,259 12,051 Wages and benefits 1,006,308 533,987 $ 3,389,637 $ 1,633,957

Note 6 - Related Party Transact

Note 6 - Related Party Transactions	12 Months Ended
	May 31, 2020
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	6. RELATED PARTY TRANSACTIONS The Company entered into the following transactions with related parties: For the year ended May 31, 2020 2019 Consulting fees to CFO $ 130,000 $ 130,000 Wages and benefits to CEO and COO 1,035,157 995,974 Geological consulting fees to a company owned by a director in common 35,728 – Directors fees (included in consulting fees) 168,797 155,219 Stock-based compensation to related parties 2,362,008 1,147,341 $ 3,731,690 $ 2,428,534 As at May 31, 2020, $1,274 2019 $12,810 These amounts were unsecured, non-interest bearing and had no not The Company has also entered into change of control agreements with officers of the Company. In the case of termination, the officers are entitled to an amount equal to a multiple (ranging from two three one

Note 7 - Geographic Segmented I

Note 7 - Geographic Segmented Information	12 Months Ended
	May 31, 2020
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	7. GEOGRAPHIC SEGMENTED INFORMATION The Company operates in one two Canada United States Total May 31, 2020 Capitalized acquisition costs $ – $ 5,831,924 $ 5,831,924 Property and equipment $ 5,488 $ 33,142 $ 38,630 Right-of-use assets $ – $ 48,978 $ 48,978 May 31, 2019 Capitalized acquisition costs $ – $ 5,619,005 $ 5,619,005 Property and equipment $ 7,840 $ 37,176 $ 45,016 For the year ended May 31, 2020 2019 Net loss for the year – Canada $ (5,125,081 ) $ (3,770,719 ) Net loss for the year – United States (11,081,571 ) (7,087,286 ) Net loss for the year $ (16,206,652 ) $ (10,858,005 )

Note 8 - Subsidiaries

Note 8 - Subsidiaries	12 Months Ended
	May 31, 2020
Notes to Financial Statements
Subsidiaries [Text Block]	8. SUBSIDIARIES Significant subsidiaries for the years ended May 31, 2020 2019 Country of Principal The Company's The Company's Corvus Gold (USA) Inc. USA Holding company 100 % 100 % Raven Gold Alaska Inc. USA Exploration company 100 % 100 % Corvus Gold Nevada Inc. USA Exploration company 100 % 100 % SoN Land & Water LLC USA Exploration company 100 % 100 % Mother Lode Mining Company LLC USA Exploration company 100 % 100 %

Note 9 - Supplemental Cash Flow

Note 9 - Supplemental Cash Flow Information	12 Months Ended
	May 31, 2020
Notes to Financial Statements
Cash Flow, Supplemental Disclosures [Text Block]	9. SUPPLEMENTAL CASH FLOW INFORMATION For the year ended May 31, 2020 2019 Supplemental cash flow information Interest paid $ 15,969 $ – Income taxes paid (received) $ – $ – Non-cash financing and investing transactions Shares issued to acquire mineral properties $ 48,750 $ 59,500 Change in asset retirement obligations included in capitalized acquisition costs $ – $ 36,250 Reclassification of contributed surplus on exercise of stock options $ – $ 3,196,919

Note 10 - Income Taxes

Note 10 - Income Taxes	12 Months Ended
	May 31, 2020
Notes to Financial Statements
Income Tax Disclosure [Text Block]	10. INCOME TAXES A reconciliation of income taxes at statutory rates with the reported taxes is as follows for the years ended May 31: 2020 2019 Loss before income taxes $ (16,206,652 ) $ (10,858,005 ) Statutory Canadian corporate tax rate 27.00 % 26.42 % Income tax recovery at statutory rates $ (4,375,796 ) $ (2,868,322 ) Stock-based compensation 915,202 431,637 Effect of tax rate change 10,650,087 (12,432 ) Difference in tax rates in other jurisdictions 675,258 (549,814 ) Tax benefits not realized (7,864,751 ) 2,998,931 Income tax recovery $ – $ – The significant components of the Company's deferred income tax assets and liabilities are as follows: 2020 2019 Deferred income tax assets (liabilities) Mineral properties $ 15,701,000 $ 21,333,000 Property and equipment 12,000 12,000 Share issuance costs 453,000 27,000 Non-capital losses available for future periods 8,313,000 9,763,000 24,479,000 31,135,000 Valuation allowance (24,479,000 ) (31,135,000 ) Net deferred tax assets $ – $ – At May 31, 2020, $15,722,000 $19,370,000 not Canada United States 2029 $ – $ 1,318,000 2030 – 2,000 2031 379,000 195,000 2032 1,089,000 1,679,000 2033 1,443,000 2,214,000 2034 1,733,000 4,313,000 2035 1,806,000 2,004,000 2036 1,354,000 1,761,000 2037 1,624,000 1,368,000 2038 1,943,000 1,568,000 2039 2,206,000 1,646,000 2040 2,145,000 1,302,000 $ 15,722,000 $ 19,370,000 In addition, the Company has available mineral resource expenses that are related to the Company's exploration activities in the United States of approximately $79,740,000 $333,000, may may not

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	May 31, 2020
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of presentation These consolidated financial statements are presented in Canadian dollars and have been prepared in accordance with generally accepted accounting principles in the United States (“US GAAP”).
Consolidation, Policy [Policy Text Block]	Basis of consolidation These consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries (collectively, the “Group”), Corvus Gold (USA) Inc. (“Corvus USA”) (a Nevada corporation), Corvus Gold Nevada Inc. (“Corvus Nevada”) (a Nevada corporation), Raven Gold Alaska Inc. (“Raven Gold”) (an Alaska corporation), SoN Land and Water LLC (“SoN”) (a Nevada limited liability company) and Mother Lode Mining Company LLC (a Nevada limited liability company). All intercompany transactions and balances were eliminated upon consolidation.
Use of Estimates, Policy [Policy Text Block]	Significant judgments, estimates and assumptions The preparation of these financial statements in accordance with US GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and reported amounts of expenses during the reporting year. Actual outcomes could differ from these estimates. These financial statements include estimates which, by their nature, are uncertain. The impacts of such estimates are pervasive throughout the financial statements, and may Significant estimates Significant assumptions about the future and other sources of estimation uncertainty that management has made at the end of the reporting year, that could result in a material adjustment to the carrying amounts of assets and liabilities, in the event that actual results differ from assumptions made, relate to, but are not Significant judgments Critical accounting judgments are accounting policies that have been identified as being complex or involving subjective judgments or assessments. The Company made the following critical accounting judgments: · The determination of deferred tax assets and liabilities. · The analysis of resource calculations, drill results, laboratory work, etc., which can impact the Company's assessment of impairments, and provisions, if any, for environmental rehabilitation and restorations. · The determination of functional currency. Using the currency of the primary economic environment in which each of the parent company and its subsidiaries operates. · The assessment of the Company's ability to continue as a going concern.
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and cash equivalents Cash equivalents include highly liquid investments in term deposits that are readily convertible to known amounts of cash with original maturities of three three 30 no
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign currency translation The presentation currency of the Company is the Canadian dollar. The functional currency of each of the parent company and its subsidiaries is measured using the currency of the primary economic environment in which that entity operates. The functional currency of Corvus USA, Corvus Nevada, Raven Gold, SoN, and Mother Lode Mining Company LLC is US dollars, and for the Company the functional currency is Canadian dollars. Transactions and balances Foreign currency transactions are translated into the functional currency using the exchange rates prevailing at the date of the transaction. Foreign currency monetary items are translated at the year-end exchange rate. Non-monetary items measured at historical cost continue to be carried at the exchange rate at the date of the transaction. Non-monetary items measured at fair value are reported at the exchange rate at the date when fair values were determined. Exchange differences arising on the translation of monetary items or on settlement of monetary items are recognized in profit or loss in the Statement of Operations and Comprehensive Loss in the year in which they arise. Exchange differences arising on the translation of non-monetary items are recognized in other comprehensive income (loss) in the Statement of Operations and Comprehensive Loss to the extent that gains and losses arising on those non-monetary items are also recognized in other comprehensive income (loss). Where the non-monetary gain or loss is recognized in profit or loss, the exchange component is also recognized in profit or loss. Parent and Subsidiary Companies The financial results and position of foreign operations whose functional currency is different from the presentation currency are translated as follows: · Assets and liabilities are translated at year-end exchange rates prevailing at that reporting date; and · Income and expenses are translated at monthly average exchange rates during the year. Exchange differences arising on translation of foreign operations are transferred directly to the Group's exchange difference on translating foreign operations in the Statement of Operations and Comprehensive Loss and are reported as a separate component of shareholders' equity titled “Cumulative Translation Differences”. These differences are recognized in profit or loss in the year in which the operation is disposed of.
Property, Plant and Equipment, Policy [Policy Text Block]	Property and equipment a) Recognition and measurement On initial recognition, property and equipment are valued at cost, being the purchase price and directly attributable costs of acquisition or construction required to bring the asset to the location and condition necessary to be capable of operating in the manner intended by the Company, including appropriate borrowing costs and the estimated present value of any future unavoidable costs of dismantling and removing items. Property and equipment is subsequently measured at cost less accumulated depreciation, less any accumulated impairment losses, with the exception of land which is not When parts of an item of property and equipment have different useful lives, they are accounted for as separate items (major components) of property and equipment. b) Subsequent costs The cost of replacing part of an item of property and equipment is recognized in the carrying amount of the item if it is probable that the future economic benefit embodied within the part will flow to the Company and its cost can be measured reliably. The carrying amount of the replaced part is derecognized. The costs of the day-to-day servicing of property and equipment are recognized in profit or loss as incurred. c) Major maintenance and repairs Subsequent costs are included in the asset's carrying amount or recognized as a separate asset, as appropriate, only when it is probable that future economic benefits associated with the item will flow to the Company and the cost of the item can be measured reliably. All other repairs and maintenance expenditures are charged to profit or loss during the financial year in which they are incurred. d) Gains and losses Gains and losses on disposal of an item of property and equipment are determined by comparing the proceeds from disposal with the carrying amount, and are recognized net within other items in profit or loss. e) Depreciation Depreciation is recognized in profit or loss on a declining-balance basis at the following annual rates: Computer equipment - 30% Vehicles - 30% Tent - 20% Additions during the year are depreciated at one Depreciation methods, useful lives and residual values are reviewed at each financial year-end and adjusted if appropriate.
Capitalization of Internal Costs, Policy [Policy Text Block]	Mineral properties and exploration and evaluation expenditures The Company's mineral projects are currently in the exploration and evaluation phase. All direct costs related to the acquisition of mineral property interests are capitalized. Mineral property exploration costs are expensed as incurred. At such time that the Company determines that a mineral property can be economically developed, subsequent mineral property expenses will be capitalized during the development of such property.
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	Impairment of long-lived assets The Company assesses long-lived assets for impairment or when facts and circumstances suggest that the carrying amount of an asset may not, not 50%.
Asset Retirement Obligation [Policy Text Block]	Asset retirement obligations The Company records a liability based on the best estimate of costs for site closure and reclamation activities that the Company is legally or contractually required to remediate at the time environmental disturbance occurs. The provision for closure and reclamation liabilities is estimated using expected cash flows based on engineering and environmental reports and accreted to full value over time through periodic charges to profit or loss. As at May 31, 2020, $373,103 270,000 2019 $419,286 310,000
Income Tax, Policy [Policy Text Block]	Income taxes The Company accounts for income taxes under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Under the asset and liability method, the effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is recognized if it is more likely than not not
Share Capital [Policy Text Block]	Share capital The proceeds from the exercise of stock options, warrants and escrow shares are recorded as share capital in the amount for which the option, warrant or escrow share enabled the holder to purchase a share in the Company. Commissions paid to agents, and other related share issuance costs, such as legal, auditing, and printing, on the issue of the Company's shares are charged directly to share capital.
Equity Method Investments Issuances, Policy [Policy Text Block]	Valuation of equity units issued in private placements The Company has adopted a residual value method with respect to the measurement of shares and warrants issued as private placement units. The residual value method first The fair value of the common shares issued in the private placements was determined to be the more easily measurable component and were valued at their fair value, as determined by the closing quoted bid price on the announcement date. The balance, if any, is allocated to the attached warrants. Any fair value attributed to the warrants is recorded as contributed surplus. Upon exercise of the warrants, the related fair value is reallocated to share capital.
Earnings Per Share, Policy [Policy Text Block]	Earnings (loss) per share Basic loss per share is calculated using the weighted average number of common shares outstanding during the year. The Company uses the treasury stock method to compute the dilutive effect of options, warrants and similar instruments. Under this method, the dilutive effect on earnings (loss) per share is calculated presuming the exercise of outstanding options, warrants and similar instruments. It assumes that the proceeds of such exercise would be used to repurchase common shares at the average market price during the year. However, the calculation of diluted loss per share excludes the effects of various conversions and exercise of options and warrants that would be anti-dilutive. For the year ended May 31, 2020, 12,345,000 2019 10,000,000 not
Share-based Payment Arrangement [Policy Text Block]	Stock-based compensation The Company follows the provisions of Financial Accounting Standards Board Accounting Standards Codification Section 718
Non-monetary Transactions [Policy Text Block]	Non-monetary transactions All non-monetary transactions are measured at the fair value of the asset surrendered or the asset received, whichever is more reliable, unless the transaction lacks commercial substance or the fair value cannot be reliably established. The commercial substance requirement is met when the future cash flows are expected to change significantly as a result of the transaction. When the fair value of a non-monetary transaction cannot be reliably measured, it is recorded at the carrying amount (after reduction, when appropriate, for impairment) of the asset given up adjusted by the fair value of any monetary consideration received or given. When the asset received or the consideration given up is shares in an actively traded market, the value of those shares will be considered fair value.
Interest in Unincorporated Joint Ventures or Partnerships, Policy [Policy Text Block]	Joint venture accounting Where the Company's exploration and development activities are conducted with others, the accounts reflect only the Company's proportionate interest in such activities. The Company currently is not
New Accounting Pronouncements, Policy [Policy Text Block]	Adoption of New Accounting Standards and Amendments Accounting Standards Update: No. 2016 02 842 842 Effective June 1, 2019, Topic 842 (a) The Company's accounting policy under Topic 842 Definition of a lease At inception of a contract, the Company assesses whether a contract is, or contains, a lease based on whether the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. The Company has elected to apply the practical expedient to grandfather the lease definition for existing contracts on transition. It applied the definition of a lease under Topic 842 June 1, 2019. The Company has also elected to apply the practical expedient to account for each lease component and any non-lease components as a single lease component. As a lessee The Company leases its head office space, based on lease agreement having a fixed duration until January 30, 2023 ( May 22, 2020 July 31, 2020) August 31, 2020 one August 31, 2021. The Company recognizes a right-of-use asset and a lease liability at the lease commencement date. The right-of-use asset is initially measured at cost, based on the initial amount of the lease liability. The assets are depreciated to the earlier of the end of the useful life of the right-of-use asset or the lease term using the straight-line method as this most closely reflects the expected pattern of consumption of the future economic benefits. The lease term includes periods covered by an option to extend if the Company is reasonably certain to exercise that option. In addition, the right-of-use asset is periodically adjusted for certain remeasurements of the lease liability. The lease liability is initially measured at the present value of the lease payments that are not The ongoing lease liability is measured at amortized cost using the effective interest method. It is measured when there is a change in future lease payments, if there is a change in the Company's estimate of the amount expected to be payable under a residual value guarantee, or if the Company changes its assessment of whether it will exercise a purchase, extension or termination option. When the lease liability is remeasured in this way a corresponding adjustment is made to the carrying amount of the right-of-use asset or is recorded in profit or loss if the carrying amount of the right-of-use asset has been reduced to zero. (b) Impact of transition to Topic 842 Effective June 1, 2019, Topic 842 May 31, 2019 not June 1, 2019. May 31, 2019 On initial application, the Company has elected to record right-of-use assets based on the corresponding lease receivables and/or lease liabilities. Lease receivables and liabilities have been measured by discounting future lease payments at the incremental borrowing rate at June 1, 2019. 10% Topic 842 three eight The Company has elected to apply the practical expedient to account for leases for which the lease term ends within 12 The Company has also elected to apply the practical expedient for excluding the initial direct costs for the measurement of right-of-use assets at the date of initial application, as well as for using hindsight in determining the lease term where the contract contains options to extend or terminate the lease. The application of Topic 842 June 1, 2019 June 1, 2019 Topic 842 – Lease Adjustments June 1, 2019 Non-current assets: Right-of-use assets $ – $ 88,957 $ 88,957 Non-current liabilities Lease liabilities $ – $ 88,957 $ 88,957 Recently Issued Accounting Standards Updates Accounting Standards Update No. 2019 01 842 March 2019, 2019 01 not 942; December 15, 2019. January 1, 2020. no Early adoption is permitted. The adoption of the guidance will have an immaterial impact on the Company's consolidated financial statements and disclosures.

Note 2 - Significant Accounti_2

Note 2 - Significant Accounting Policies (Tables)	12 Months Ended
	May 31, 2020
Notes Tables
Accounting Standards Update and Change in Accounting Principle [Table Text Block]	June 1, 2019 Topic 842 – Lease Adjustments June 1, 2019 Non-current assets: Right-of-use assets $ – $ 88,957 $ 88,957 Non-current liabilities Lease liabilities $ – $ 88,957 $ 88,957

Note 3 - Fair Value of Financ_2

Note 3 - Fair Value of Financial Instruments (Tables)	12 Months Ended
	May 31, 2020
Notes Tables
Fair Value, by Balance Sheet Grouping [Table Text Block]	May 31, 2020 Level 1 Cash and cash equivalents $ 14,913,158 May 31, 2019 Level 1 Cash and cash equivalents $ 4,145,085

Note 4 - Mineral Properties (Ta

Note 4 - Mineral Properties (Tables)	12 Months Ended
	May 31, 2020
Notes Tables
Capitalized Costs Relating to Acquisition Activities Disclosure [Table Text Block]	North Bullfrog Mother Lode Total (note 4(a)) (note 4(b)) Balance, May 31, 2018 $ 4,428,752 $ 810,037 $ 5,238,789 Acquisition costs Cash payments (note 4(a)(ii)(1)) 47,318 – 47,318 Shares issued (notes 4(a)(ii)(1) and 5) 59,500 – 59,500 Asset retirement obligations 24,765 11,485 36,250 Currency translation adjustments 200,922 36,226 237,148 Balance, May 31, 2019 4,761,257 857,748 5,619,005 Acquisition costs Cash payments (note 4(a)(ii)(1)) 51,705 – 51,705 Shares issued (notes 4(a)(ii)(1) and 5) 48,750 – 48,750 Currency translation adjustments 95,978 16,486 112,464 Balance, May 31, 2020 $ 4,957,690 $ 874,234 $ 5,831,924
Cost Incurred in Acquisition Exploration and Evaluation Activities Disclosure [Table Text Block]	North Bullfrog Mother Lode Alaskan Total (note 4(a)) (note 4(b)) (note 4(c)) Exploration costs: Assay $ 388,167 $ 340,989 $ – $ 729,156 Asset retirement obligations (42,724 ) (11,519 ) – (54,243 ) Drilling 1,401,882 3,284,109 – 4,685,991 Equipment rental 63,267 55,197 – 118,464 Field costs 259,936 931,930 – 1,191,866 Geological/ Geophysical 579,158 756,236 – 1,335,394 Land maintenance & tenure 471,520 130,044 – 601,564 Permits 26,760 71,609 – 98,369 Studies 843,856 353,796 – 1,197,652 Travel 63,376 117,212 – 180,588 4,055,198 6,029,603 – 10,084,801 Cost recovery – – (318,537 ) (318,537 ) Total expenditures (recovery) for the year $ 4,055,198 $ 6,029,603 $ (318,537 ) $ 9,766,264 North Bullfrog Mother Lode Total (note 4(a)) (note 4(b)) Exploration costs: Assay $ 14,839 $ 567,274 $ 582,113 Drilling 208,421 1,788,433 1,996,854 Equipment rental 33,173 66,780 99,953 Field costs 13,620 248,059 261,679 Geological/ Geophysical 83,972 650,424 734,396 Land maintenance & tenure 414,636 271,749 686,385 Permits 7,546 155,661 163,207 Studies 98,904 891,297 990,201 Travel 14,035 107,818 121,853 Total expenditures for the year $ 889,146 $ 4,747,495 $ 5,636,641

Note 5 - Share Capital (Tables)

Note 5 - Share Capital (Tables)	12 Months Ended
	May 31, 2020
Notes Tables
Share-based Payment Arrangement, Option, Activity [Table Text Block]	2020 2019 Number of Weighted Number of Weighted Balance, beginning of the year 10,000,000 $ 1.40 9,861,900 $ 0.85 Granted 2,345,000 2.13 4,920,000 2.06 Exercised – – (4,651,900 ) (0.93 ) Forfeited – – (130,000 ) (1.81 ) Balance, end of the year 12,345,000 $ 1.54 10,000,000 $ 1.40
Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]	2020 2019 Expiry Date Exercise Number of Exercisable Exercise Number of Exercisable September 8, 2019* $ 1.40 635,000 635,000 $ 1.40 635,000 635,000 September 9, 2020 $ 0.46 620,000 620,000 $ 0.46 620,000 620,000 November 13, 2020 $ 0.49 1,000,000 1,000,000 $ 0.49 1,000,000 1,000,000 September 15, 2021 $ 0.91 1,085,000 1,085,000 $ 0.91 1,085,000 1,085,000 July 31, 2022 $ 0.77 1,840,000 1,225,440 $ 0.77 1,840,000 612,720 October 11, 2022 $ 2.00 20,000 13,322 $ – – – November 19, 2023 $ 2.06 4,420,000 1,471,860 $ 2.06 4,420,000 – April 9, 2024 $ 2.04 400,000 133,200 $ 2.04 400,000 – June 13, 2024 $ 2.18 1,115,000 – $ – – – February 3, 2025 $ 2.09 1,210,000 – $ – – – 12,345,000 6,183,822 10,000,000 3,952,720
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	For the year ended May 31, 2020 2019 Risk-free interest rate 1.32 % 2.22 % Expected life of options (in years) 4.98 5 Annualized volatility 72.09 % 73.88 % Dividend yield 0 % 0 % Exercise price $ 2.13 $ 2.06 Fair value per share $ 1.27 $ 1.51
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]	For the year ended May 31, 2020 2019 Consulting fees $ 1,591,400 $ 728,748 Exploration expenditures – Geological/geophysical 294,760 140,318 Investor relations 470,910 218,853 Professional fees 26,259 12,051 Wages and benefits 1,006,308 533,987 $ 3,389,637 $ 1,633,957

Note 6 - Related Party Transa_2

Note 6 - Related Party Transactions (Tables)	12 Months Ended
	May 31, 2020
Notes Tables
Schedule of Related Party Transactions [Table Text Block]	For the year ended May 31, 2020 2019 Consulting fees to CFO $ 130,000 $ 130,000 Wages and benefits to CEO and COO 1,035,157 995,974 Geological consulting fees to a company owned by a director in common 35,728 – Directors fees (included in consulting fees) 168,797 155,219 Stock-based compensation to related parties 2,362,008 1,147,341 $ 3,731,690 $ 2,428,534

Note 7 - Geographic Segmented_2

Note 7 - Geographic Segmented Information (Tables)	12 Months Ended
	May 31, 2020
Notes Tables
Long-lived Assets by Geographic Areas [Table Text Block]	Canada United States Total May 31, 2020 Capitalized acquisition costs $ – $ 5,831,924 $ 5,831,924 Property and equipment $ 5,488 $ 33,142 $ 38,630 Right-of-use assets $ – $ 48,978 $ 48,978 May 31, 2019 Capitalized acquisition costs $ – $ 5,619,005 $ 5,619,005 Property and equipment $ 7,840 $ 37,176 $ 45,016
Net Income (Loss) by Geographic Areas [Table Text Block]	For the year ended May 31, 2020 2019 Net loss for the year – Canada $ (5,125,081 ) $ (3,770,719 ) Net loss for the year – United States (11,081,571 ) (7,087,286 ) Net loss for the year $ (16,206,652 ) $ (10,858,005 )

Note 8 - Subsidiaries (Tables)

Note 8 - Subsidiaries (Tables)	12 Months Ended
	May 31, 2020
Notes Tables
Schedule of Significant Subsidiaries [Table Text Block]	Country of Principal The Company's The Company's Corvus Gold (USA) Inc. USA Holding company 100 % 100 % Raven Gold Alaska Inc. USA Exploration company 100 % 100 % Corvus Gold Nevada Inc. USA Exploration company 100 % 100 % SoN Land & Water LLC USA Exploration company 100 % 100 % Mother Lode Mining Company LLC USA Exploration company 100 % 100 %

Note 9 - Supplemental Cash Fl_2

Note 9 - Supplemental Cash Flow Information (Tables)	12 Months Ended
	May 31, 2020
Notes Tables
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	For the year ended May 31, 2020 2019 Supplemental cash flow information Interest paid $ 15,969 $ – Income taxes paid (received) $ – $ – Non-cash financing and investing transactions Shares issued to acquire mineral properties $ 48,750 $ 59,500 Change in asset retirement obligations included in capitalized acquisition costs $ – $ 36,250 Reclassification of contributed surplus on exercise of stock options $ – $ 3,196,919

Note 10 - Income Taxes (Tables)

Note 10 - Income Taxes (Tables)	12 Months Ended
	May 31, 2020
Notes Tables
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	2020 2019 Loss before income taxes $ (16,206,652 ) $ (10,858,005 ) Statutory Canadian corporate tax rate 27.00 % 26.42 % Income tax recovery at statutory rates $ (4,375,796 ) $ (2,868,322 ) Stock-based compensation 915,202 431,637 Effect of tax rate change 10,650,087 (12,432 ) Difference in tax rates in other jurisdictions 675,258 (549,814 ) Tax benefits not realized (7,864,751 ) 2,998,931 Income tax recovery $ – $ –
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	2020 2019 Deferred income tax assets (liabilities) Mineral properties $ 15,701,000 $ 21,333,000 Property and equipment 12,000 12,000 Share issuance costs 453,000 27,000 Non-capital losses available for future periods 8,313,000 9,763,000 24,479,000 31,135,000 Valuation allowance (24,479,000 ) (31,135,000 ) Net deferred tax assets $ – $ –
Summary of Tax Credit Carryforwards [Table Text Block]	Canada United States 2029 $ – $ 1,318,000 2030 – 2,000 2031 379,000 195,000 2032 1,089,000 1,679,000 2033 1,443,000 2,214,000 2034 1,733,000 4,313,000 2035 1,806,000 2,004,000 2036 1,354,000 1,761,000 2037 1,624,000 1,368,000 2038 1,943,000 1,568,000 2039 2,206,000 1,646,000 2040 2,145,000 1,302,000 $ 15,722,000 $ 19,370,000

Note 1 - Nature and Continuan_2

Note 1 - Nature and Continuance of Operations (Details Textual) - CAD ($)	Oct. 10, 2019	Aug. 19, 2019	Jun. 05, 2019	Dec. 20, 2018	Jun. 07, 2018	May 31, 2020	May 31, 2019
Working Capital						$ 14,568,048	$ 4,204,082
Proceeds from Issuance of Private Placement				$ 2,080,000
Private Placement [Member]
Stock Issued During Period, Shares, New Issues (in shares)	11,500,000	500,000	500,000	800,000	1,730,770
Shares Issued, Price Per Share (in CAD per share)	$ 2	$ 2.60	$ 1.80	$ 2.60
Proceeds from Issuance of Private Placement	$ 23,000,000	$ 1,300,000	$ 900,000		$ 4,500,002

Note 2 - Significant Accounti_3

Note 2 - Significant Accounting Policies (Details Textual)	12 Months Ended
	May 31, 2020USD ($)shares	May 31, 2019USD ($)shares	May 31, 2020CAD ($)	Jun. 01, 2019	May 31, 2019CAD ($)
Asset Retirement Obligations, Noncurrent, Total	$ 270,000	$ 310,000	$ 373,103		$ 419,286
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	12,345,000	10,000,000
Lessee, Operating Lease, Discount Rate				10.00%
Computer Equipment [Member]
Property, Plant and Equipment, Depreciation Methods	30%
Vehicles [Member]
Property, Plant and Equipment, Depreciation Methods	30%
Tent [Member]
Property, Plant and Equipment, Depreciation Methods	20%

Note 2 - Significant Accounti_4

Note 2 - Significant Accounting Policies - Application of Topic 842 (Details) - CAD ($)	May 31, 2020	Jun. 01, 2019	May 31, 2019
Right-of-use assets	$ 48,978
Lease liabilities	$ 52,475
Previously Reported [Member]
Right-of-use assets		$ 88,957
Lease liabilities		88,957
Revision of Prior Period, Adjustment [Member]
Right-of-use assets		88,957
Lease liabilities		$ 88,957

Note 3 - Fair Value of Financ_3

Note 3 - Fair Value of Financial Instruments - Financial Instruments Recorded at Fair Value (Details) - CAD ($)	May 31, 2020	May 31, 2019
Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents	$ 14,913,158	$ 4,145,085

Note 4 - Mineral Properties (De

Note 4 - Mineral Properties (Details Textual) $ / shares in Units, T in Millions	Oct. 18, 2019shares	Jun. 07, 2019CAD ($)	Nov. 26, 2018shares	Nov. 22, 2017USD ($)shares	Jun. 09, 2017$ / sharesshares	Mar. 30, 2015USD ($)	Mar. 28, 2013USD ($)T	Mar. 01, 2011USD ($)	Oct. 09, 2009USD ($)	Dec. 01, 2007USD ($)	Mar. 31, 2015shares	Dec. 31, 2013USD ($)a	Dec. 31, 2013CAD ($)a	May 31, 2020USD ($)	May 31, 2020CAD ($)	May 31, 2019CAD ($)		May 31, 2013USD ($)	May 31, 2013CAD ($)	May 31, 2020CAD ($)	May 31, 2019USD ($)	May 31, 2019CAD ($)	Mar. 31, 2019USD ($)	Mar. 01, 2019USD ($)	May 29, 2014USD ($)	May 31, 2013CAD ($)	Oct. 27, 2008USD ($)	Jun. 16, 2006USD ($)	May 22, 2006USD ($)	May 16, 2006USD ($)	May 08, 2006USD ($)
Payments to Acquire Mineral Rights															$ 51,705	$ 47,318
Asset Retirement Obligations, Noncurrent, Total														$ 270,000						$ 373,103	$ 310,000	$ 419,286
EMX Royalty Corporation [Member]
Proceeds From Sale of Royalties		$ 350,000
Legal Fees		31,463
Proceeds from Sale of Royalties, Net Costs		$ 318,537
North Bullfrog [Member]
Unpatented Mineral Claims														100.00%	100.00%
Payments for Royalties									$ 39,800					$ 17,700
Number of Patented Mining Claims, Available to Purchase																											12
Payments to Acquire Mineral Rights															$ 51,705	47,318	[1]
Land Subject to Ground Leases (Acre) | a												1,600	1,600
Stock Issued During Period, Shares, Acquisitions (in shares) | shares	25,000		25,000
North Bullfrog [Member] | Nevada Corporation [Member]
Net Smelter Return, Royalty Percentage of Production																									3.00%						3.00%
Purchase Price of Each 1% NSR Royalty																									$ 770,000						$ 850,000
Purchase Price of NSR Royalty																									$ 2,310,000						$ 2,550,000
North Bullfrog [Member] | Redstar Gold Corp. [Member]
Number of Leases									6
Number of Patented Mining Claims Leased									33
Mining Lease Agreement Term of Contract (Year)									10 years
Net Smelter Return, Royalty Percentage of Production																											4.00%	2.00%	2.00%	4.00%	2.00%
Purchase Price of Each 1% NSR Royalty																											$ 1,250,000	$ 1,000,000	$ 1,000,000	$ 1,000,000	$ 1,000,000
Purchase Price of NSR Royalty																											$ 5,000,000	$ 2,000,000	$ 2,000,000	$ 4,000,000	$ 2,000,000
North Bullfrog [Member] | Corvus Gold Nevada Inc. [Member]
Number of Patented Mining Claims Leased								2
Mining Lease Agreement Term of Contract (Year)								10 years
Net Smelter Return, Royalty Percentage of Production						4.00%		2.00%
Purchase Price of Each 1% NSR Royalty						$ 500,000		$ 1,000,000
Purchase Price of NSR Royalty						$ 2,000,000		$ 2,000,000
Lease Term (Year)						3 years				5 years
Additional Lease Term (Year)						7 years				5 years
Mining Lease Agreement Term of Contract, Extension Term (Year)								10 years		10 years
Lease Payment for Patended Mining Claims Upon Extend Lease				$ 10,000
Work Commitments for the First Three Year										$ 100,000
Work Commitments for the Years 4 to 6										200,000
Work Commitments for the years 7 to 10										300,000
Work Commitments for the years 11 to 20										$ 300,000
Percentage of NSR Royalty Required to Pay If Average Gold Price Less than or Equal to USD400 per Ounce										2.00%
Percentage of NSR Royalty Required to Pay If Average Gold Price Between USD401 and USD500 per Ounce										3.00%
Percentage of NSR Royalty Required to Pay if Average Gold Price Greater than USD500 per Ounce										4.00%
Advance Royalties Payment						$ 5,000																	$ 5,000	$ 30,000
Patented Mining Claims, Agreed to Purchase							5
Purchase Agreement Payable							$ 160,000
Price Per Ton Of Overburden to be Stored On Property							0.02
Minimum Storage Capacity of Property (US Ton) | T							12
Notes Payable, Total							$ 240,000											$ 240,000								$ 248,832
Acquisition Costs, Period Cost																		$ 400,000	$ 406,240
Payments to Acquire Mineral Rights																			$ 157,408
Number of Patented Sunflower Claims						3
Lease Agreement, Option to Purchase Property, Purcahse Price						$ 300,000
North Bullfrog [Member] | Corvus Gold Nevada Inc. [Member] | Promissory Note Payable [Member]
Debt Instrument, Interest Rate, Effective Percentage							4.77%
North Bullfrog [Member] | International Tower Hill Mines Ltd. [Member]
Lease Payments Common Shares Issued Upon Extend Lease (in shares) | shares				50,000							25,000
Land and Water Rights [Member]
Payments to Acquire Mineral Rights												$ 1,034,626	$ 1,100,118
Mother Lode Property [Member]
Payments to Acquire Mineral Rights																	[2]
Mother Lode Property [Member] | Goldcorp USA, Inc [Member]
Stock Issued During Period, Shares, Acquisitions (in shares) | shares					1,000,000
Shares Issued, Price Per Share (in CAD per share) | $ / shares					$ 0.81
Mother Lode Property [Member] | Goldcorp USA, Inc [Member]
Net Smelter Return, Royalty Percentage of Production Based on Specified Maximum Gold Price					1.00%
Net Smelter Return, Maximum Gold Price					1,400
Net Smelter Return, Additional Royalty Percentage of Production Based on Specified Minimum Gold Price					1.00%
Net Smelter Return, Total Royalty Percentage of Production					2.00%
Net Smelter Return, Minimum Gold Price					1,400
Chisna Project [Member] | EMX Royalty Corporation [Member]
Net Smelter Return, Royalty Percentage of Production		1.00%
LMS Project [Member] | EMX Royalty Corporation [Member]
Net Smelter Return, Royalty Percentage of Production		3.00%
Goodpaster District [Member] | EMX Royalty Corporation [Member]
Net Smelter Return, Royalty Percentage of Production		1.00%
West Pogo Project [Member]
Net Smelter Return, Royalty Percentage of Production		1.00%
West Pogo Project [Member] | EMX Royalty Corporation [Member]
Net Smelter Return, Royalty Percentage of Production		2.00%
[1]	North Bullfrog Project, Nevada The Company's North Bullfrog project consists of certain leased patented lode mining claims and federal unpatented mining claims owned 100% by the Company. (i) Interests acquired from Redstar Gold Corp. On October 9, 2009, a US subsidiary of ITH at the time (Corvus Nevada) completed the acquisition of all of the interests of Redstar Gold Corp. ("Redstar") and Redstar Gold U.S.A. Inc. ("Redstar US") in the North Bullfrog project, which consisted of six leases covering 33 patented mining claims. The leases have an initial term of ten years, and for so long thereafter as mining activities continue on the claims or contiguous claims held by the Company: The Company is required to pay annual advance minimum royalty payments (recoupable from production royalties) for as long as there are mining activities continuing on the claims or contiguous claims held by the Company. The required annual advance minimum royalty payments are: 39,800 USD 17,700 USD (adjusted annually for inflation) The lessor is entitled to receive a separate NSR royalty related to all production from the leased property of the various individual leases which may be purchased by the Company as follows: a 4% NSR royalty, which may be purchased by the Company for USD 1,250,000 per 1% (USD 5,000,000 for the entire royalty). a 2% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 2,000,000 for the entire royalty). a 3% NSR royalty on all production, which may be purchased by the Company for USD 850,000 per 1% (USD 2,550,000 for the entire royalty). a 3% NSR royalty on all production which may be purchased by the Company for USD 770,000 per 1% (USD 2,310,000 for the entire royalty). a 4% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 4,000,000 for the entire royalty). a 2% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 2,000,000 for the entire royalty). a 2% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 2,000,000 for the entire royalty). The various NSR royalties above relate only to the property covered by each specific lease and are not cumulative. The Company has an option to purchase a property related to twelve patented mining claims for USD 1,000,000 at any time during the life of the lease (subject to the net smelter return ("NSR") royalty of 4% which may be purchased by the Company for USD 1,250,000 per 1% (USD 5,000,000 for the entire royalty). (ii) Interests acquired directly by Corvus Nevada (1) Pursuant to a mining lease and option to purchase agreement made effective December 1, 2007 between Corvus Nevada and a group of arm's length limited partnerships, Corvus Nevada has leased (and has the option to purchase) patented mining claims referred to as the "Mayflower" claims which form part of the North Bullfrog project. The terms of the lease/option are as follows: Terms: Initial term of five years, commencing December 1, 2007, with the option to extend the lease for an additional five years. Pursuant to an extension agreement dated January 15, 2016 and fully executed and effective as of November 22, 2017, the parties agreed to extend the lease and option granted for an additional ten years with the same lease payment terms. Lease Payments: Corvus Nevada will pay USD 10,000 and deliver 50,000 common shares of ITH annually. Anti-Dilution: Pursuant to an amended agreement agreed to by the lessors in March 2015, the Company, all future payments will be satisfied by the delivery of an additional 1/2 common shares of the Company for each of the ITH common shares due per the original agreement (25,000 common shares of the Company) annually. Work Commitments: USD 100,000 per year for the first three years (incurred), USD 200,000 per year for the years four to six (incurred), USD 300,000 for the years seven to ten (incurred) and USD 300,000 for the years 11 - 20 (incurred). Excess expenditures in any year may be carried forward. If Corvus Nevada does not incur the required expenditures in year one, the deficiency is required to be paid to the lessors. Retained Royalty: Corvus Nevada will pay the lessors a NSR royalty of 2% if the average gold price is USD 400 per ounce or less, 3% if the average gold price is between USD 401 and USD 500 per ounce and 4% if the average gold price is greater than USD 500 per ounce. (2) Pursuant to a mining lease and option to purchase made effective March 1, 2011 between Corvus Nevada and an arm's length individual, Corvus Nevada has leased, and has the option to purchase, two patented mineral claims which form part of the North Bullfrog project holdings. The lease is for an initial term of ten years, subject to extension for an additional ten years (provided advance minimum royalties are timely paid), and for so long thereafter as mining activities continue on the claims. The lessee is required to pay advance minimum royalty payments (recoupable from production royalties, but not applicable to the purchase price if the option to purchase is exercised) of USD 30,000 (paid to March 1, 2020), adjusted for inflation. The lessor is entitled to receive a 2% NSR royalty on all production. The lessee may purchase the NSR royalty for USD 1,000,000 per 1%. If the lessee purchases the entire NSR royalty (USD 2,000,000) the lessee will also acquire all interest of the lessor in the subject property. (3) Pursuant to a purchase agreement made effective March 28, 2013, Corvus Nevada agreed to purchase the surface rights of five patented mining claims owned by two arm's length individuals for USD 160,000 paid on closing (March 28, 2013). The terms include payment by Corvus Nevada of a fee of USD 0.02 per ton of overburden to be stored on the property, subject to payment for a minimum of 12 million short tons. The minimum tonnage fee (USD 240,000) bears interest at 4.77% per annum from closing and is evidenced by a promissory note due on the sooner of the commencing of use of the property for waste materials storage or December 31, 2015 (balance paid December 17, 2015). As a result, the Company recorded $406,240 (USD 400,000) in acquisition costs with $157,408 paid in cash and the remaining $248,832 (USD 240,000) in promissory note payable during the year ended May 31, 2013. (4) In December 2013, SoN completed the purchase of a parcel of land approximately 30 kilometres north of the North Bullfrog project which carries with it 1,600 acre feet of irrigation water rights. The cost of the land and associated water rights was cash payment of $1,100,118 (USD 1,034,626). (5) On March 30, 2015, Lunar Landing, LLC signed a lease agreement with Corvus Nevada to lease private property containing the three patented Sunflower claims to Corvus Nevada, which are adjacent to the Yellow Rose claims leased in 2014. The term of the lease is three years with provision to extend the lease for an additional seven years, and an advance minimum royalty payment of USD 5,000 per year with USD 5,000 paid upon signing (paid to March 2020). The lease includes a 4% NSR royalty on production, with an option to purchase the royalty for USD 500,000 per 1% or USD 2,000,000 for the entire 4% royalty. The lease also includes the option to purchase the property for USD 300,000.
[2]	Mother Lode Property, Nevada Pursuant to a purchase agreement made effective June 9, 2017 between Corvus Nevada and Goldcorp USA, Inc. ("Goldcorp USA"), Corvus Nevada has acquired 100% of the Mother Lode property (the "Mother Lode Property"). In addition, Corvus Nevada staked two additional adjacent claim blocks to the Mother Lode Property. In connection with the acquisition, the Company issued 1,000,000 common shares at a price of $0.81 per common share to Goldcorp USA (note 5). The Mother Lode Property is subject to an NSR in favour of Goldcorp USA. The NSR pays 1% from production at the Mother Lode Property when the price of gold is less than USD 1,400 per ounce and an additional 1% NSR for a total of 2% NSR when gold price is greater than or equal to USD 1,400 per ounce.

Note 4 - Mineral Properties - A

Note 4 - Mineral Properties - Activity Related to Capitalized Acquisition Costs (Details) - CAD ($)	Oct. 18, 2019	Nov. 26, 2018	May 31, 2020	May 31, 2019
Balance			$ 5,619,005	$ 5,238,789
Cash payments (note 4(a)(ii)(1))			51,705	47,318
Stock Issued During Period, Value, Acquisitions			48,750	59,500
Asset retirement obligations				36,250
Currency translation adjustments			112,464	237,148
Balance			5,831,924	5,619,005
North Bullfrog [Member]
Balance			4,761,257	4,428,752	[1]
Cash payments (note 4(a)(ii)(1))			51,705	47,318	[1]
Stock Issued During Period, Value, Acquisitions	$ 48,750	$ 59,500	48,750	59,500	[1]
Asset retirement obligations				24,765
Currency translation adjustments			95,978	200,922	[1]
Balance			4,957,690	4,761,257
Mother Lode Property [Member]
Balance			857,748	810,037	[2]
Cash payments (note 4(a)(ii)(1))					[2]
Stock Issued During Period, Value, Acquisitions					[2]
Asset retirement obligations				11,485
Currency translation adjustments			16,486	36,226	[2]
Balance			$ 874,234	$ 857,748
[1]	North Bullfrog Project, Nevada The Company's North Bullfrog project consists of certain leased patented lode mining claims and federal unpatented mining claims owned 100% by the Company. (i) Interests acquired from Redstar Gold Corp. On October 9, 2009, a US subsidiary of ITH at the time (Corvus Nevada) completed the acquisition of all of the interests of Redstar Gold Corp. ("Redstar") and Redstar Gold U.S.A. Inc. ("Redstar US") in the North Bullfrog project, which consisted of six leases covering 33 patented mining claims. The leases have an initial term of ten years, and for so long thereafter as mining activities continue on the claims or contiguous claims held by the Company: The Company is required to pay annual advance minimum royalty payments (recoupable from production royalties) for as long as there are mining activities continuing on the claims or contiguous claims held by the Company. The required annual advance minimum royalty payments are: 39,800 USD 17,700 USD (adjusted annually for inflation) The lessor is entitled to receive a separate NSR royalty related to all production from the leased property of the various individual leases which may be purchased by the Company as follows: a 4% NSR royalty, which may be purchased by the Company for USD 1,250,000 per 1% (USD 5,000,000 for the entire royalty). a 2% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 2,000,000 for the entire royalty). a 3% NSR royalty on all production, which may be purchased by the Company for USD 850,000 per 1% (USD 2,550,000 for the entire royalty). a 3% NSR royalty on all production which may be purchased by the Company for USD 770,000 per 1% (USD 2,310,000 for the entire royalty). a 4% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 4,000,000 for the entire royalty). a 2% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 2,000,000 for the entire royalty). a 2% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 2,000,000 for the entire royalty). The various NSR royalties above relate only to the property covered by each specific lease and are not cumulative. The Company has an option to purchase a property related to twelve patented mining claims for USD 1,000,000 at any time during the life of the lease (subject to the net smelter return ("NSR") royalty of 4% which may be purchased by the Company for USD 1,250,000 per 1% (USD 5,000,000 for the entire royalty). (ii) Interests acquired directly by Corvus Nevada (1) Pursuant to a mining lease and option to purchase agreement made effective December 1, 2007 between Corvus Nevada and a group of arm's length limited partnerships, Corvus Nevada has leased (and has the option to purchase) patented mining claims referred to as the "Mayflower" claims which form part of the North Bullfrog project. The terms of the lease/option are as follows: Terms: Initial term of five years, commencing December 1, 2007, with the option to extend the lease for an additional five years. Pursuant to an extension agreement dated January 15, 2016 and fully executed and effective as of November 22, 2017, the parties agreed to extend the lease and option granted for an additional ten years with the same lease payment terms. Lease Payments: Corvus Nevada will pay USD 10,000 and deliver 50,000 common shares of ITH annually. Anti-Dilution: Pursuant to an amended agreement agreed to by the lessors in March 2015, the Company, all future payments will be satisfied by the delivery of an additional 1/2 common shares of the Company for each of the ITH common shares due per the original agreement (25,000 common shares of the Company) annually. Work Commitments: USD 100,000 per year for the first three years (incurred), USD 200,000 per year for the years four to six (incurred), USD 300,000 for the years seven to ten (incurred) and USD 300,000 for the years 11 - 20 (incurred). Excess expenditures in any year may be carried forward. If Corvus Nevada does not incur the required expenditures in year one, the deficiency is required to be paid to the lessors. Retained Royalty: Corvus Nevada will pay the lessors a NSR royalty of 2% if the average gold price is USD 400 per ounce or less, 3% if the average gold price is between USD 401 and USD 500 per ounce and 4% if the average gold price is greater than USD 500 per ounce. (2) Pursuant to a mining lease and option to purchase made effective March 1, 2011 between Corvus Nevada and an arm's length individual, Corvus Nevada has leased, and has the option to purchase, two patented mineral claims which form part of the North Bullfrog project holdings. The lease is for an initial term of ten years, subject to extension for an additional ten years (provided advance minimum royalties are timely paid), and for so long thereafter as mining activities continue on the claims. The lessee is required to pay advance minimum royalty payments (recoupable from production royalties, but not applicable to the purchase price if the option to purchase is exercised) of USD 30,000 (paid to March 1, 2020), adjusted for inflation. The lessor is entitled to receive a 2% NSR royalty on all production. The lessee may purchase the NSR royalty for USD 1,000,000 per 1%. If the lessee purchases the entire NSR royalty (USD 2,000,000) the lessee will also acquire all interest of the lessor in the subject property. (3) Pursuant to a purchase agreement made effective March 28, 2013, Corvus Nevada agreed to purchase the surface rights of five patented mining claims owned by two arm's length individuals for USD 160,000 paid on closing (March 28, 2013). The terms include payment by Corvus Nevada of a fee of USD 0.02 per ton of overburden to be stored on the property, subject to payment for a minimum of 12 million short tons. The minimum tonnage fee (USD 240,000) bears interest at 4.77% per annum from closing and is evidenced by a promissory note due on the sooner of the commencing of use of the property for waste materials storage or December 31, 2015 (balance paid December 17, 2015). As a result, the Company recorded $406,240 (USD 400,000) in acquisition costs with $157,408 paid in cash and the remaining $248,832 (USD 240,000) in promissory note payable during the year ended May 31, 2013. (4) In December 2013, SoN completed the purchase of a parcel of land approximately 30 kilometres north of the North Bullfrog project which carries with it 1,600 acre feet of irrigation water rights. The cost of the land and associated water rights was cash payment of $1,100,118 (USD 1,034,626). (5) On March 30, 2015, Lunar Landing, LLC signed a lease agreement with Corvus Nevada to lease private property containing the three patented Sunflower claims to Corvus Nevada, which are adjacent to the Yellow Rose claims leased in 2014. The term of the lease is three years with provision to extend the lease for an additional seven years, and an advance minimum royalty payment of USD 5,000 per year with USD 5,000 paid upon signing (paid to March 2020). The lease includes a 4% NSR royalty on production, with an option to purchase the royalty for USD 500,000 per 1% or USD 2,000,000 for the entire 4% royalty. The lease also includes the option to purchase the property for USD 300,000.
[2]	Mother Lode Property, Nevada Pursuant to a purchase agreement made effective June 9, 2017 between Corvus Nevada and Goldcorp USA, Inc. ("Goldcorp USA"), Corvus Nevada has acquired 100% of the Mother Lode property (the "Mother Lode Property"). In addition, Corvus Nevada staked two additional adjacent claim blocks to the Mother Lode Property. In connection with the acquisition, the Company issued 1,000,000 common shares at a price of $0.81 per common share to Goldcorp USA (note 5). The Mother Lode Property is subject to an NSR in favour of Goldcorp USA. The NSR pays 1% from production at the Mother Lode Property when the price of gold is less than USD 1,400 per ounce and an additional 1% NSR for a total of 2% NSR when gold price is greater than or equal to USD 1,400 per ounce.

Note 4 - Mineral Properties - C

Note 4 - Mineral Properties - Costs Incurred for Exploration and Evaluation Activities (Details) - CAD ($)		12 Months Ended
		May 31, 2020	May 31, 2019
Exploration expenditures (notes 4 and 5)		$ 9,766,264	$ 5,636,641
Cost recovery		(318,537)
North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)		4,055,198	889,146
Cost recovery	[1]
Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)		6,029,603	4,747,495
Cost recovery	[2]
Alaskan Royalty Interest [Member]
Cost recovery	[3]	(318,537)
Assay [Member]
Exploration expenditures (notes 4 and 5)		729,156	582,113
Assay [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]	388,167	14,839
Assay [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]	340,989	567,274
Assay [Member] | Alaskan Royalty Interest [Member]
Exploration expenditures (notes 4 and 5)	[3]
Asset Retirment Obligations [Member]
Cost recovery		(54,243)
Asset Retirment Obligations [Member] | North Bullfrog [Member]
Cost recovery	[1]	(42,724)
Asset Retirment Obligations [Member] | Mother Lode Property [Member]
Cost recovery	[2]	(11,519)
Asset Retirment Obligations [Member] | Alaskan Royalty Interest [Member]
Cost recovery	[3]
Drilling [Member]
Exploration expenditures (notes 4 and 5)		4,685,991	1,996,854
Drilling [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]	1,401,882	208,421
Drilling [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]	3,284,109	1,788,433
Drilling [Member] | Alaskan Royalty Interest [Member]
Exploration expenditures (notes 4 and 5)	[3]
Equipment rental [Member]
Exploration expenditures (notes 4 and 5)		118,464	99,953
Equipment rental [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]	63,267	33,173
Equipment rental [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]	55,197	66,780
Equipment rental [Member] | Alaskan Royalty Interest [Member]
Exploration expenditures (notes 4 and 5)	[3]
Field Costs [Member]
Exploration expenditures (notes 4 and 5)		1,191,866	261,679
Field Costs [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]	259,936	13,620
Field Costs [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]	931,930	248,059
Field Costs [Member] | Alaskan Royalty Interest [Member]
Exploration expenditures (notes 4 and 5)	[3]
Geological Geophysical [Member]
Exploration expenditures (notes 4 and 5)		1,335,394	734,396
Geological Geophysical [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]	579,158	83,972
Geological Geophysical [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]	756,236	650,424
Geological Geophysical [Member] | Alaskan Royalty Interest [Member]
Exploration expenditures (notes 4 and 5)	[3]
Land Maintenance and Tenure [Member]
Exploration expenditures (notes 4 and 5)		601,564	686,385
Land Maintenance and Tenure [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]	471,520	414,636
Land Maintenance and Tenure [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]	130,044	271,749
Land Maintenance and Tenure [Member] | Alaskan Royalty Interest [Member]
Exploration expenditures (notes 4 and 5)	[3]
Permits [Member]
Exploration expenditures (notes 4 and 5)		98,369	163,207
Permits [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]	26,760	7,546
Permits [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]	71,609	155,661
Permits [Member] | Alaskan Royalty Interest [Member]
Exploration expenditures (notes 4 and 5)	[3]
Studies [Member]
Exploration expenditures (notes 4 and 5)		1,197,652	990,201
Studies [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]	843,856	98,904
Studies [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]	353,796	891,297
Studies [Member] | Alaskan Royalty Interest [Member]
Exploration expenditures (notes 4 and 5)	[3]
Travel [Member]
Exploration expenditures (notes 4 and 5)		180,588	121,853
Travel [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]	63,376	14,035
Travel [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]	117,212	$ 107,818
Travel [Member] | Alaskan Royalty Interest [Member]
Exploration expenditures (notes 4 and 5)	[3]
Exploration Costs Before Cost Recovery [Member]
Exploration expenditures (notes 4 and 5)		10,084,801
Exploration Costs Before Cost Recovery [Member] | North Bullfrog [Member]
Exploration expenditures (notes 4 and 5)	[1]	4,055,198
Exploration Costs Before Cost Recovery [Member] | Mother Lode Property [Member]
Exploration expenditures (notes 4 and 5)	[2]	6,029,603
Exploration Costs Before Cost Recovery [Member] | Alaskan Royalty Interest [Member]
Exploration expenditures (notes 4 and 5)	[3]
[1]	North Bullfrog Project, Nevada The Company's North Bullfrog project consists of certain leased patented lode mining claims and federal unpatented mining claims owned 100% by the Company. (i) Interests acquired from Redstar Gold Corp. On October 9, 2009, a US subsidiary of ITH at the time (Corvus Nevada) completed the acquisition of all of the interests of Redstar Gold Corp. ("Redstar") and Redstar Gold U.S.A. Inc. ("Redstar US") in the North Bullfrog project, which consisted of six leases covering 33 patented mining claims. The leases have an initial term of ten years, and for so long thereafter as mining activities continue on the claims or contiguous claims held by the Company: The Company is required to pay annual advance minimum royalty payments (recoupable from production royalties) for as long as there are mining activities continuing on the claims or contiguous claims held by the Company. The required annual advance minimum royalty payments are: 39,800 USD 17,700 USD (adjusted annually for inflation) The lessor is entitled to receive a separate NSR royalty related to all production from the leased property of the various individual leases which may be purchased by the Company as follows: a 4% NSR royalty, which may be purchased by the Company for USD 1,250,000 per 1% (USD 5,000,000 for the entire royalty). a 2% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 2,000,000 for the entire royalty). a 3% NSR royalty on all production, which may be purchased by the Company for USD 850,000 per 1% (USD 2,550,000 for the entire royalty). a 3% NSR royalty on all production which may be purchased by the Company for USD 770,000 per 1% (USD 2,310,000 for the entire royalty). a 4% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 4,000,000 for the entire royalty). a 2% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 2,000,000 for the entire royalty). a 2% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 2,000,000 for the entire royalty). The various NSR royalties above relate only to the property covered by each specific lease and are not cumulative. The Company has an option to purchase a property related to twelve patented mining claims for USD 1,000,000 at any time during the life of the lease (subject to the net smelter return ("NSR") royalty of 4% which may be purchased by the Company for USD 1,250,000 per 1% (USD 5,000,000 for the entire royalty). (ii) Interests acquired directly by Corvus Nevada (1) Pursuant to a mining lease and option to purchase agreement made effective December 1, 2007 between Corvus Nevada and a group of arm's length limited partnerships, Corvus Nevada has leased (and has the option to purchase) patented mining claims referred to as the "Mayflower" claims which form part of the North Bullfrog project. The terms of the lease/option are as follows: Terms: Initial term of five years, commencing December 1, 2007, with the option to extend the lease for an additional five years. Pursuant to an extension agreement dated January 15, 2016 and fully executed and effective as of November 22, 2017, the parties agreed to extend the lease and option granted for an additional ten years with the same lease payment terms. Lease Payments: Corvus Nevada will pay USD 10,000 and deliver 50,000 common shares of ITH annually. Anti-Dilution: Pursuant to an amended agreement agreed to by the lessors in March 2015, the Company, all future payments will be satisfied by the delivery of an additional 1/2 common shares of the Company for each of the ITH common shares due per the original agreement (25,000 common shares of the Company) annually. Work Commitments: USD 100,000 per year for the first three years (incurred), USD 200,000 per year for the years four to six (incurred), USD 300,000 for the years seven to ten (incurred) and USD 300,000 for the years 11 - 20 (incurred). Excess expenditures in any year may be carried forward. If Corvus Nevada does not incur the required expenditures in year one, the deficiency is required to be paid to the lessors. Retained Royalty: Corvus Nevada will pay the lessors a NSR royalty of 2% if the average gold price is USD 400 per ounce or less, 3% if the average gold price is between USD 401 and USD 500 per ounce and 4% if the average gold price is greater than USD 500 per ounce. (2) Pursuant to a mining lease and option to purchase made effective March 1, 2011 between Corvus Nevada and an arm's length individual, Corvus Nevada has leased, and has the option to purchase, two patented mineral claims which form part of the North Bullfrog project holdings. The lease is for an initial term of ten years, subject to extension for an additional ten years (provided advance minimum royalties are timely paid), and for so long thereafter as mining activities continue on the claims. The lessee is required to pay advance minimum royalty payments (recoupable from production royalties, but not applicable to the purchase price if the option to purchase is exercised) of USD 30,000 (paid to March 1, 2020), adjusted for inflation. The lessor is entitled to receive a 2% NSR royalty on all production. The lessee may purchase the NSR royalty for USD 1,000,000 per 1%. If the lessee purchases the entire NSR royalty (USD 2,000,000) the lessee will also acquire all interest of the lessor in the subject property. (3) Pursuant to a purchase agreement made effective March 28, 2013, Corvus Nevada agreed to purchase the surface rights of five patented mining claims owned by two arm's length individuals for USD 160,000 paid on closing (March 28, 2013). The terms include payment by Corvus Nevada of a fee of USD 0.02 per ton of overburden to be stored on the property, subject to payment for a minimum of 12 million short tons. The minimum tonnage fee (USD 240,000) bears interest at 4.77% per annum from closing and is evidenced by a promissory note due on the sooner of the commencing of use of the property for waste materials storage or December 31, 2015 (balance paid December 17, 2015). As a result, the Company recorded $406,240 (USD 400,000) in acquisition costs with $157,408 paid in cash and the remaining $248,832 (USD 240,000) in promissory note payable during the year ended May 31, 2013. (4) In December 2013, SoN completed the purchase of a parcel of land approximately 30 kilometres north of the North Bullfrog project which carries with it 1,600 acre feet of irrigation water rights. The cost of the land and associated water rights was cash payment of $1,100,118 (USD 1,034,626). (5) On March 30, 2015, Lunar Landing, LLC signed a lease agreement with Corvus Nevada to lease private property containing the three patented Sunflower claims to Corvus Nevada, which are adjacent to the Yellow Rose claims leased in 2014. The term of the lease is three years with provision to extend the lease for an additional seven years, and an advance minimum royalty payment of USD 5,000 per year with USD 5,000 paid upon signing (paid to March 2020). The lease includes a 4% NSR royalty on production, with an option to purchase the royalty for USD 500,000 per 1% or USD 2,000,000 for the entire 4% royalty. The lease also includes the option to purchase the property for USD 300,000.
[2]	Mother Lode Property, Nevada Pursuant to a purchase agreement made effective June 9, 2017 between Corvus Nevada and Goldcorp USA, Inc. ("Goldcorp USA"), Corvus Nevada has acquired 100% of the Mother Lode property (the "Mother Lode Property"). In addition, Corvus Nevada staked two additional adjacent claim blocks to the Mother Lode Property. In connection with the acquisition, the Company issued 1,000,000 common shares at a price of $0.81 per common share to Goldcorp USA (note 5). The Mother Lode Property is subject to an NSR in favour of Goldcorp USA. The NSR pays 1% from production at the Mother Lode Property when the price of gold is less than USD 1,400 per ounce and an additional 1% NSR for a total of 2% NSR when gold price is greater than or equal to USD 1,400 per ounce.
[3]	Alaskan Royalty Interest, Alaska On June 7, 2019, the Company completed the sale of the royalties where four non-core Alaskan royalty interests owned by Corvus were sold to EMX Royalty Corporation ("EMX") for a purchase price of $350,000. In connection with the Alaskan royalty package sale, the Company incurred $31,463 in legal fees, resulting in a total cost recovery for the Alaska Royalty Interest of $318,537. The general terms of the Alaskan royalty package sale include: * Chisna project 1% NSR * LMS project 3% NSR * Goodpaster District 1% NSR * West Pogo project 2% NSR. The Company has retained a 1% NSR in the West Pogo project which is immediately west of the operating Pogo mine in the Goodpaster District of Alaska.

Note 5 - Share Capital (Details

Note 5 - Share Capital (Details Textual) - CAD ($)	Oct. 18, 2019	Oct. 10, 2019	Aug. 19, 2019	Jun. 05, 2019	Dec. 20, 2018	Nov. 26, 2018	Jun. 07, 2018	Apr. 30, 2019	Nov. 30, 2018	May 31, 2020	May 31, 2019
Sale of Stock, Price Per Share (in CAD per share)								$ 1.40	$ 0.86
Proceeds from Issuance of Private Placement					$ 2,080,000
Payments of Stock Issuance Costs										$ 2,014,653	$ 31,059
Stock Issued During Period, Value, Acquisitions										$ 48,750	$ 59,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares)								615,000	4,036,900		4,651,900
Proceeds from Stock Options Exercised								$ 861,000	$ 3,453,924
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Year)										2 years 248 days	3 years 91 days
Share-based Payment Arrangement, Option [Member]
Shares Granted, Value, Share-based Payment Arrangement, before Forfeiture										$ 2,974,411	$ 7,442,708
Employee Stock Option, Expiring on November 17, 2016 [Member]
Options Exercisable Period, After Restrictions Lifted (Day)										10 days
The 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares)								615,000	4,036,900
The 2010 Plan [Member] | Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum										10.00%
The 2010 Plan [Member] | Share-based Payment Arrangement, Option [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)										10 years
North Bullfrog [Member]
Payments of Stock Issuance Costs						$ 6,212
Stock Issued During Period, Shares, Acquisitions (in shares)	25,000					25,000
Stock Issued During Period, Value, Acquisitions	$ 48,750					$ 59,500				$ 48,750	$ 59,500	[1]
Private Placement [Member]
Stock Issued During Period, Shares, New Issues (in shares)		11,500,000	500,000	500,000	800,000		1,730,770
Sale of Stock, Price Per Share (in CAD per share)		$ 2	$ 2.60	$ 1.80			$ 2.60
Proceeds from Issuance of Private Placement		$ 23,000,000	$ 1,300,000	$ 900,000			$ 4,500,002
Payments of Stock Issuance Costs		$ 1,998,025	$ 8,927	$ 7,701	$ 10,242		$ 14,605
Shares Issued, Price Per Share (in CAD per share)		$ 2	$ 2.60	$ 1.80	$ 2.60
[1]	North Bullfrog Project, Nevada The Company's North Bullfrog project consists of certain leased patented lode mining claims and federal unpatented mining claims owned 100% by the Company. (i) Interests acquired from Redstar Gold Corp. On October 9, 2009, a US subsidiary of ITH at the time (Corvus Nevada) completed the acquisition of all of the interests of Redstar Gold Corp. ("Redstar") and Redstar Gold U.S.A. Inc. ("Redstar US") in the North Bullfrog project, which consisted of six leases covering 33 patented mining claims. The leases have an initial term of ten years, and for so long thereafter as mining activities continue on the claims or contiguous claims held by the Company: The Company is required to pay annual advance minimum royalty payments (recoupable from production royalties) for as long as there are mining activities continuing on the claims or contiguous claims held by the Company. The required annual advance minimum royalty payments are: 39,800 USD 17,700 USD (adjusted annually for inflation) The lessor is entitled to receive a separate NSR royalty related to all production from the leased property of the various individual leases which may be purchased by the Company as follows: a 4% NSR royalty, which may be purchased by the Company for USD 1,250,000 per 1% (USD 5,000,000 for the entire royalty). a 2% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 2,000,000 for the entire royalty). a 3% NSR royalty on all production, which may be purchased by the Company for USD 850,000 per 1% (USD 2,550,000 for the entire royalty). a 3% NSR royalty on all production which may be purchased by the Company for USD 770,000 per 1% (USD 2,310,000 for the entire royalty). a 4% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 4,000,000 for the entire royalty). a 2% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 2,000,000 for the entire royalty). a 2% NSR royalty on all production, which may be purchased by the Company for USD 1,000,000 per 1% (USD 2,000,000 for the entire royalty). The various NSR royalties above relate only to the property covered by each specific lease and are not cumulative. The Company has an option to purchase a property related to twelve patented mining claims for USD 1,000,000 at any time during the life of the lease (subject to the net smelter return ("NSR") royalty of 4% which may be purchased by the Company for USD 1,250,000 per 1% (USD 5,000,000 for the entire royalty). (ii) Interests acquired directly by Corvus Nevada (1) Pursuant to a mining lease and option to purchase agreement made effective December 1, 2007 between Corvus Nevada and a group of arm's length limited partnerships, Corvus Nevada has leased (and has the option to purchase) patented mining claims referred to as the "Mayflower" claims which form part of the North Bullfrog project. The terms of the lease/option are as follows: Terms: Initial term of five years, commencing December 1, 2007, with the option to extend the lease for an additional five years. Pursuant to an extension agreement dated January 15, 2016 and fully executed and effective as of November 22, 2017, the parties agreed to extend the lease and option granted for an additional ten years with the same lease payment terms. Lease Payments: Corvus Nevada will pay USD 10,000 and deliver 50,000 common shares of ITH annually. Anti-Dilution: Pursuant to an amended agreement agreed to by the lessors in March 2015, the Company, all future payments will be satisfied by the delivery of an additional 1/2 common shares of the Company for each of the ITH common shares due per the original agreement (25,000 common shares of the Company) annually. Work Commitments: USD 100,000 per year for the first three years (incurred), USD 200,000 per year for the years four to six (incurred), USD 300,000 for the years seven to ten (incurred) and USD 300,000 for the years 11 - 20 (incurred). Excess expenditures in any year may be carried forward. If Corvus Nevada does not incur the required expenditures in year one, the deficiency is required to be paid to the lessors. Retained Royalty: Corvus Nevada will pay the lessors a NSR royalty of 2% if the average gold price is USD 400 per ounce or less, 3% if the average gold price is between USD 401 and USD 500 per ounce and 4% if the average gold price is greater than USD 500 per ounce. (2) Pursuant to a mining lease and option to purchase made effective March 1, 2011 between Corvus Nevada and an arm's length individual, Corvus Nevada has leased, and has the option to purchase, two patented mineral claims which form part of the North Bullfrog project holdings. The lease is for an initial term of ten years, subject to extension for an additional ten years (provided advance minimum royalties are timely paid), and for so long thereafter as mining activities continue on the claims. The lessee is required to pay advance minimum royalty payments (recoupable from production royalties, but not applicable to the purchase price if the option to purchase is exercised) of USD 30,000 (paid to March 1, 2020), adjusted for inflation. The lessor is entitled to receive a 2% NSR royalty on all production. The lessee may purchase the NSR royalty for USD 1,000,000 per 1%. If the lessee purchases the entire NSR royalty (USD 2,000,000) the lessee will also acquire all interest of the lessor in the subject property. (3) Pursuant to a purchase agreement made effective March 28, 2013, Corvus Nevada agreed to purchase the surface rights of five patented mining claims owned by two arm's length individuals for USD 160,000 paid on closing (March 28, 2013). The terms include payment by Corvus Nevada of a fee of USD 0.02 per ton of overburden to be stored on the property, subject to payment for a minimum of 12 million short tons. The minimum tonnage fee (USD 240,000) bears interest at 4.77% per annum from closing and is evidenced by a promissory note due on the sooner of the commencing of use of the property for waste materials storage or December 31, 2015 (balance paid December 17, 2015). As a result, the Company recorded $406,240 (USD 400,000) in acquisition costs with $157,408 paid in cash and the remaining $248,832 (USD 240,000) in promissory note payable during the year ended May 31, 2013. (4) In December 2013, SoN completed the purchase of a parcel of land approximately 30 kilometres north of the North Bullfrog project which carries with it 1,600 acre feet of irrigation water rights. The cost of the land and associated water rights was cash payment of $1,100,118 (USD 1,034,626). (5) On March 30, 2015, Lunar Landing, LLC signed a lease agreement with Corvus Nevada to lease private property containing the three patented Sunflower claims to Corvus Nevada, which are adjacent to the Yellow Rose claims leased in 2014. The term of the lease is three years with provision to extend the lease for an additional seven years, and an advance minimum royalty payment of USD 5,000 per year with USD 5,000 paid upon signing (paid to March 2020). The lease includes a 4% NSR royalty on production, with an option to purchase the royalty for USD 500,000 per 1% or USD 2,000,000 for the entire 4% royalty. The lease also includes the option to purchase the property for USD 300,000.

Note 5 - Share Capital - Summar

Note 5 - Share Capital - Summary of the Status of the Stock Option Plan (Details) - $ / shares	1 Months Ended		12 Months Ended
	Apr. 30, 2019	Nov. 30, 2018	May 31, 2020	May 31, 2019
Number of Options, Balance (in shares)			10,000,000	9,861,900
Weighted Average Exercise Price, Balance (in CAD per share)			$ 1.40	$ 0.85
Number of Options, Granted (in shares)			2,345,000	4,920,000
Weighted Average Exercise Price, Granted (in CAD per share)			$ 2.13	$ 2.06
Number of Options, Exercised (in shares)	(615,000)	(4,036,900)		(4,651,900)
Weighted Average Exercise Price, Exercised (in CAD per share)				$ (0.93)
Number of Options, Forfeited (in shares)				(130,000)
Weighted Average Exercise Price, Forfeited (in CAD per share)				$ (1.81)
Number of Options, Balance (in shares)			12,345,000	10,000,000
Weighted Average Exercise Price, Balance (in CAD per share)			$ 1.54	$ 1.40

Note 5 - Share Capital - Stock

Note 5 - Share Capital - Stock Options Outstanding (Details) - $ / shares		May 31, 2020	May 31, 2019	May 31, 2018
Exercise Price (in CAD per share)		$ 1.54	$ 1.40	$ 0.85
Number of Options (in shares)		12,345,000	10,000,000	9,861,900
Exercisable at Year- End (in shares)		6,183,822	3,952,720
Employee Stock Option, Expiring On September 8, 2019 [Member]
Exercise Price (in CAD per share)	[1]	$ 1.40	$ 1.40
Number of Options (in shares)	[1]	635,000	635,000
Exercisable at Year- End (in shares)	[1]	635,000	635,000
Employee Stock Option, Expiring on September 9, 2020 [Member]
Exercise Price (in CAD per share)		$ 0.46	$ 0.46
Number of Options (in shares)		620,000	620,000
Exercisable at Year- End (in shares)		620,000	620,000
Employee Stock Option, Expiring on November 13, 2020 [Member]
Exercise Price (in CAD per share)		$ 0.49	$ 0.49
Number of Options (in shares)		1,000,000	1,000,000
Exercisable at Year- End (in shares)		1,000,000	1,000,000
Employee Stock Option, Expiring on September 15, 2021 [Member]
Exercise Price (in CAD per share)		$ 0.91	$ 0.91
Number of Options (in shares)		1,085,000	1,085,000
Exercisable at Year- End (in shares)		1,085,000	1,085,000
Employee Stock Option, Expiring on July 31, 2022 [Member]
Exercise Price (in CAD per share)		$ 0.77	$ 0.77
Number of Options (in shares)		1,840,000	1,840,000
Exercisable at Year- End (in shares)		1,225,440	612,720
Employee Stock Options, Expiring on October 11, 2022 [Member]
Exercise Price (in CAD per share)		$ 2
Number of Options (in shares)		20,000
Exercisable at Year- End (in shares)		13,322
Employee Stock Options, Expiring on November 19, 2023 [Member]
Exercise Price (in CAD per share)		$ 2.06	$ 2.06
Number of Options (in shares)		4,420,000	4,420,000
Exercisable at Year- End (in shares)		1,471,860
Employee Stock Option, Expiring on April 9, 2024 [Member]
Exercise Price (in CAD per share)		$ 2.04	$ 2.04
Number of Options (in shares)		400,000	400,000
Exercisable at Year- End (in shares)		133,200
Employee Stock Option, Expiring on June 13, 2024 [Member]
Exercise Price (in CAD per share)		$ 2.18
Number of Options (in shares)		1,115,000
Exercisable at Year- End (in shares)
Employee Stock Option, Expiring on February 3, 2025 [Member]
Exercise Price (in CAD per share)		$ 2.09
Number of Options (in shares)		1,210,000
Exercisable at Year- End (in shares)
[1]	The Company's share trading policy (the "Policy") requires that all restricted persons and others who are subject to the Policy refrain from conducting any transactions involving the purchase or sale of the Company's securities, during the period in any quarter commencing 30 days prior to the scheduled issuance of the next quarter or year-end public disclosure of the financial results as well as when there is material data on hand. In accordance with the terms of the Amended 2010 Plan, if stock options are set to expire during a restricted period and are not exercised prior to any such restriction, they will not expire but instead will be available for exercise for ten days after such restrictions are lifted.

Note 5 - Share Capital - Valuat

Note 5 - Share Capital - Valuation Assumptions for Stock Options (Details) - Share-based Payment Arrangement, Option [Member] - $ / shares	12 Months Ended
	May 31, 2020	May 31, 2019
Risk-free interest rate	1.32%	2.22%
Expected life of options (in years) (Year)	4 years 357 days	5 years
Annualized volatility	72.09%	73.88%
Dividend yield	0.00%	0.00%
Exercise price (in CAD per share)	$ 2.13	$ 2.06
Fair value per share (in CAD per share)	$ 1.27	$ 1.51

Note 5 - Share Capital - Alloca

Note 5 - Share Capital - Allocation of Stock-based Compensation Expenses (Details) - CAD ($)	12 Months Ended
	May 31, 2020	May 31, 2019
Share-based Compensation	$ 3,389,637	$ 1,633,957
Consulting fees [Member]
Share-based Compensation	1,591,400	728,748
Exploration expenditures - Geological/geophysical [Member]
Share-based Compensation	294,760	140,318
Investor relations [Member]
Share-based Compensation	470,910	218,853
Professional Fees [Member]
Share-based Compensation	26,259	12,051
Wages and Benefits [Member]
Share-based Compensation	$ 1,006,308	$ 533,987

Note 6 - Related Party Transa_3

Note 6 - Related Party Transactions (Details Textual) - CAD ($)	May 31, 2020	May 31, 2019
Accounts Payable and Accrued Liabilities, Total	$ 1,274	$ 12,810

Note 6 - Related Party Transa_4

Note 6 - Related Party Transactions - Transactions With Related Parties (Details) - CAD ($)	12 Months Ended
	May 31, 2020	May 31, 2019
Consulting fees to CFO	$ 1,931,197	$ 1,054,967
Share-based Compensation	3,389,637	1,633,957
Management compensation	3,731,690	2,428,534
Related Party Transaction [Member]
Share-based Compensation	2,362,008	1,147,341
Related Party Transaction [Member] | Chief Financial Officer [Member]
Consulting fees to CFO	130,000	130,000
Related Party Transaction [Member] | Chief Executive Officer [Member]
Wages and benefits	1,035,157	995,974
Related Party Transaction [Member] | Director [Member]
Geological consulting fees to a company owned by a director in common	35,728
Directors fees (included in consulting fees)	$ 168,797	$ 155,219

Note 7 - Geographic Segmented_3

Note 7 - Geographic Segmented Information (Details Textual)	12 Months Ended
	May 31, 2020
Number of Operating Segments	1
Number of Reportable Segments	2

Note 7 - Geographic Segmented_4

Note 7 - Geographic Segmented Information - Long-lived Assets, by Geographical Areas (Details) - CAD ($)	May 31, 2020	May 31, 2019	May 31, 2018
Capitalized acquisition costs	$ 5,831,924	$ 5,619,005	$ 5,238,789
Property and equipment	38,630	45,016
Right-of-use assets	48,978
Operating Segments [Member]
Capitalized acquisition costs	5,831,924	5,619,005
Property and equipment	38,630	45,016
Right-of-use assets	48,978
CANADA | Operating Segments [Member]
Capitalized acquisition costs	0	0
Property and equipment	5,488	7,840
Right-of-use assets
UNITED STATES | Operating Segments [Member]
Capitalized acquisition costs	5,831,924	5,619,005
Property and equipment	33,142	$ 37,176
Right-of-use assets	$ 48,978

Note 7 - Geographic Segmented_5

Note 7 - Geographic Segmented Information - Net Income (Loss) by Geographic Areas (Details) - CAD ($)	12 Months Ended
	May 31, 2020	May 31, 2019
Net loss for the year	$ (16,206,652)	$ (10,858,005)
CANADA
Net loss for the year	(5,125,081)	(3,770,719)
UNITED STATES
Net loss for the year	$ (11,081,571)	$ (7,087,286)

Note 8 - Subsidiaries - Signifi

Note 8 - Subsidiaries - Significant Subsidiaries (Details)	12 Months Ended
	May 31, 2020	May 31, 2019
Corvus Gold (USA) Inc. [Member]
Principal Activity	Holding company
Effective Interest	100.00%	100.00%
Raven Gold Alaska Inc. [Member]
Principal Activity	Exploration company
Effective Interest	100.00%	100.00%
Corvus Gold Nevada Inc. [Member]
Principal Activity	Exploration company
Effective Interest	100.00%	100.00%
SoN Land and Water LLC [Member]
Principal Activity	Exploration company
Effective Interest	100.00%	100.00%
Mother Lode Mining Company LLC [Member]
Principal Activity	Exploration company
Effective Interest	100.00%	100.00%

Note 9 - Supplemental Cash Fl_3

Note 9 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - CAD ($)	12 Months Ended
	May 31, 2020	May 31, 2019
Interest paid	$ 15,969
Income taxes paid (received)
Shares issued to acquire mineral properties	48,750	59,500
Change in asset retirement obligations included in capitalized acquisition costs		36,250
Reclassification of contributed surplus on exercise of stock options		$ 3,196,919

Note 10 - Income Taxes (Details

Note 10 - Income Taxes (Details Textual)	May 31, 2020CAD ($)
CANADA
Operating Loss Carryforwards, Total	$ 15,722,000
CANADA | Mineral, Exploration [Member]
Unrecognized Tax Benefits, Ending Balance	333,000
UNITED STATES
Operating Loss Carryforwards, Total	19,370,000
UNITED STATES | Mineral, Exploration [Member]
Unrecognized Tax Benefits, Ending Balance	$ 79,740,000

Note 10 - Income Taxes - Reconc

Note 10 - Income Taxes - Reconciliation of Income Taxes (Details) - CAD ($)	12 Months Ended
	May 31, 2020	May 31, 2019
Net loss for the year	$ (16,206,652)	$ (10,858,005)
Statutory Canadian corporate tax rate	27.00%	26.42%
Income tax recovery at statutory rates	$ (4,375,796)	$ (2,868,322)
Stock-based compensation	915,202	431,637
Effect of tax rate change	10,650,087	(12,432)
Difference in tax rates in other jurisdictions	675,258	(549,814)
Tax benefits not realized	(7,864,751)	2,998,931
Income tax recovery	$ 0	$ 0

Note 10 - Income Taxes - Compon

Note 10 - Income Taxes - Components of Deferred Income Tax Assets and Liabilities (Details) - CAD ($)	May 31, 2020	May 31, 2019
Mineral properties	$ 15,701,000	$ 21,333,000
Property and equipment	12,000	12,000
Share issuance costs	453,000	27,000
Non-capital losses available for future periods	8,313,000	9,763,000
Deferred Tax Assets, Gross	24,479,000	31,135,000
Valuation allowance	(24,479,000)	(31,135,000)
Net deferred tax assets

Note 10 - Income Taxes - Tax Cr

Note 10 - Income Taxes - Tax Credit Carryforwards (Details)	May 31, 2020CAD ($)
CANADA
Tax Credit Carry-forward, Amount	$ 15,722,000
UNITED STATES
Tax Credit Carry-forward, Amount	19,370,000
Tax Year 2029 [Member] | CANADA
Tax Credit Carry-forward, Amount
Tax Year 2029 [Member] | UNITED STATES
Tax Credit Carry-forward, Amount	1,318,000
Tax Year 2030 [Member] | CANADA
Tax Credit Carry-forward, Amount
Tax Year 2030 [Member] | UNITED STATES
Tax Credit Carry-forward, Amount	2,000
Tax Year 2031 [Member] | CANADA
Tax Credit Carry-forward, Amount	379,000
Tax Year 2031 [Member] | UNITED STATES
Tax Credit Carry-forward, Amount	195,000
Tax Year 2032 [Member] | CANADA
Tax Credit Carry-forward, Amount	1,089,000
Tax Year 2032 [Member] | UNITED STATES
Tax Credit Carry-forward, Amount	1,679,000
Tax Year 2033 [Member] | CANADA
Tax Credit Carry-forward, Amount	1,443,000
Tax Year 2033 [Member] | UNITED STATES
Tax Credit Carry-forward, Amount	2,214,000
Tax Year 2034 [Member] | CANADA
Tax Credit Carry-forward, Amount	1,733,000
Tax Year 2034 [Member] | UNITED STATES
Tax Credit Carry-forward, Amount	4,313,000
Tax Year 2035 [Member] | CANADA
Tax Credit Carry-forward, Amount	1,806,000
Tax Year 2035 [Member] | UNITED STATES
Tax Credit Carry-forward, Amount	2,004,000
Tax Year 2036 [Member] | CANADA
Tax Credit Carry-forward, Amount	1,354,000
Tax Year 2036 [Member] | UNITED STATES
Tax Credit Carry-forward, Amount	1,761,000
Tax Year 2037 [Member] | CANADA
Tax Credit Carry-forward, Amount	1,624,000
Tax Year 2037 [Member] | UNITED STATES
Tax Credit Carry-forward, Amount	1,368,000
Tax Year 2038 [Member] | CANADA
Tax Credit Carry-forward, Amount	1,943,000
Tax Year 2038 [Member] | UNITED STATES
Tax Credit Carry-forward, Amount	1,568,000
Tax Year 2039 [Member] | CANADA
Tax Credit Carry-forward, Amount	2,206,000
Tax Year 2039 [Member] | UNITED STATES
Tax Credit Carry-forward, Amount	1,646,000
Tax Year 2040 [Member] | CANADA
Tax Credit Carry-forward, Amount	2,145,000
Tax Year 2040 [Member] | UNITED STATES
Tax Credit Carry-forward, Amount	$ 1,302,000