Thunder Mountain Gold (THMG) 10-K 6 Apr 16 2015 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2015	Jun. 30, 2015	Mar. 15, 2015
Document and Entity Information
Entity Registrant Name	Thunder Mountain Gold Inc
Document Type	10-K
Document Period End Date	Dec. 31, 2015
Amendment Flag	false
Entity Central Index Key	711,034
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	FY
Entity Common Stock, Shares Outstanding			50,867,549
Entity Public Float		$ 1,734,000
Entity Incorporation, Date of Incorporation	Nov. 9, 1935
Trading Symbol	thmg

Thunder Mountain Gold, Inc. Con

Thunder Mountain Gold, Inc. Consolidated Balance Sheets - USD ($)		Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents		$ 12,143	$ 31,992
Prepaid expenses and other assets		27,556	15,926
Total current assets		39,699	47,918
Other assets:
Investment in Owyhee Gold Trust LLC		479,477	479,477
Total assets		519,176	527,395
Current liabilities:
Accounts payable and other accrued liabilities		178,786	$ 77,775
Accrued related party liability	[1]	123,038
Accrued payroll	[2]	274,000
Related party convertible notes payable	[3]	171,076	$ 38,435
Total current liabilities		$ 746,900	$ 116,210
Commitments and Contingencies	[4]
Stockholders' equity (deficit):
Preferred stock; $0.0001 par value, 5,000,000 shares authorized; no shares issued or outstanding		$ 0	$ 0
Common stock; $0.001 par value; 200,000,000 shares authorized, 44,167,549 and 40,167,549, respectively shares issued and outstanding		44,168	40,168
Additional paid-in capital		4,193,797	3,869,071
Less: 11,700 shares of treasury stock, at cost		(24,200)	(24,200)
Stock subscription receivable			(50,000)
Accumulated deficit		(4,441,489)	(3,423,854)
Total stockholders' equity (deficit)		(227,724)	411,185
Total liabilities and stockholders' equity (deficit)		$ 519,176	$ 527,395
[1]	Note 5
[2]	Note 3
[3]	Note 4
[4]	Notes 2, 3, and 9

Statement of Financial Position

Statement of Financial Position - Parenthetical - $ / shares	Dec. 31, 2015	Dec. 31, 2014
Statement of financial position
Preferred Stock, Par Value	$ 0.0001	$ 0.0001
Preferred Stock, Shares Authorized	5,000,000	5,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common Stock, Par Value	$ 0.001	$ 0.001
Common Stock, Shares Authorized	200,000,000	200,000,000
Common Stock, Shares Issued	44,167,549	40,167,549
Common Stock, Shares Outstanding	44,167,549	40,167,549

Thunder Mountain Gold, Inc. Co4

Thunder Mountain Gold, Inc. Consolidated Statements of Operations - USD ($)		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Operating expenses:
Exploration expenses		$ 166,275	$ 19,905
Legal and accounting		342,982	194,934
Management and administrative		373,976	198,048
Total operating expenses		883,233	412,887
Other income (expense):
Interest expense, related parties		(71,337)	$ (6,808)
Loss on modification of debt	[1]	(68,726)
Foreign exchange gain		5,661
Total other income (expense)		(134,402)	$ (6,808)
Net Loss		$ (1,017,635)	$ (419,695)
Net Loss per common share-basic and diluted		$ (0.02)	$ (0.01)
Weighted average common shares outstanding-basic and diluted		43,488,097	35,369,494
[1]	Note 4

Thunder Mountain Gold, Inc. Co5

Thunder Mountain Gold, Inc. Consolidated Statements of Changes in Stockholders' Equity (Deficit) - USD ($)	Common Stock Shares	Common Stock Amount	Additional Paid-In Capital	Treasury Stock	Stock Subscription Receivable	Accumulated Deficit	Total
Beginning balance, value at Dec. 31, 2013		$ 31,468	$ 3,429,279	$ (24,200)			$ 432,388
Beginning balance, shares at Dec. 31, 2013	31,467,549
Sale of stock, value							$ 417,000
Sale of stock, stock							8,340,000
Sale of stock and warrants, net		8,340	408,660		$ (50,000)		$ 367,000
Sale of stock and warrants, net, shares	8,340,000
Stock issued for services		300	14,700				15,000
Stock issued for services, stock	300,000
Stock issued for accounts payable		60	2,940				3,000
Stock issued for accounts payable, stock	60,000
Beneficial conversion feature on related party convertible notes payable			13,492				13,492
Net income (loss)						$ (419,695)	(419,695)
Ending balance, value at Dec. 31, 2014		40,168	3,869,071	(24,200)	(50,000)	(3,423,854)	411,185
Ending balance, shares at Dec. 31, 2014	40,167,549
Received on stock subscription					$ 50,000		50,000
Conversion option associated with debt modification			68,726				68,726
Sale of stock, value		4,000	196,000				200,000
Sale of stock, stock	4,000,000
Net income (loss)						(1,017,635)	(1,017,635)
Ending balance, value at Dec. 31, 2015		$ 44,168	$ 4,193,797	$ (24,200)		$ (4,441,489)	$ (227,724)
Ending balance, shares at Dec. 31, 2015	44,167,549

Thunder Mountain Gold, Inc. Co6

Thunder Mountain Gold, Inc. Consolidated Statements of Cash Flows - USD ($)		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net loss		$ (1,017,635)	$ (419,695)
Adjustments to reconcile net loss to net cash used by operating activities:
Loss on modification of debt	[1]	68,726
Stock options issued for services		60,000
Common stock and warrants issued for services			$ 15,000
Amortization of related party notes payable discount		11,565	1,927
Change in:
Prepaid expenses and other assets		(11,630)	(3,209)
Accounts payable and other liabilities		164,627	$ 10,087
Accrued related party liability		123,038
Accrued payroll	[2]	274,000
Net cash used by operating activities		(327,309)	$ (395,890)
Cash flows from financing activities:
Proceeds from sale of common stock and warrants		200,000	367,000
Received on stock subscription		50,000
Borrowing on related party notes payable		57,460	50,000
Payments on related party note payable			(25,000)
Net cash provided by financing activities		307,460	392,000
Net increase (decrease) in cash and cash equivalents		(19,849)	(3,890)
Cash and cash equivalents, beginning of year		31,992	35,882
Cash and cash equivalents, end of year		12,143	31,992
Noncash financing and investing activities:
Accrued interest payable converted to related party notes payable		$ 63,616
Common stock issued for payment of accounts payable			3,000
Beneficial conversion feature in related party notes payable			$ 13,492
[1]	Note 4
[2]	Note 3

1. Summary of Significant Accou

1. Summary of Significant Accounting Policies and Business Operations	12 Months Ended
	Dec. 31, 2015
Notes
1. Summary of Significant Accounting Policies and Business Operations	1. Summary of Significant Accounting Policies and Business Operations Business Operations Thunder Mountain Gold, Inc. (“Thunder Mountain” or “the Company”) was originally incorporated under the laws of the State of Idaho on November 9, 1935, under the name of Montgomery Mines, Inc. In April 1978, the Montgomery Mines Corporation was obtained by a group of the Thunder Mountain property holders and changed its name to Thunder Mountain Gold, Inc., with the primary goal to further develop their holdings in the Thunder Mountain Mining District, located in Valley County, Idaho. Thunder Mountain Gold, Inc. takes its name from the Thunder Mountain Mining District, where its principal lode mining claims were located. For several years, the Company’s activities were restricted to maintaining its property position and exploration activities. During 2005, the Company sold its holdings in the Thunder Mountain Mining District. During 2007, the Company acquired the South Mountain Mines property in southwest Idaho and initiated exploration activities on that property, which continue today. Basis of Presentation and Going Concern The accompanying consolidated financial statements have been prepared under the assumption that the Company will continue as a going concern. The Company is an exploration stage company and has historically incurred losses and does not have sufficient cash at December 31, 2015 to fund normal operations for the next 12 months. The Company has no recurring source of revenue and its ability to continue as a going concern is dependent on the Company’s ability to raise capital to fund its future exploration and working capital requirements. The Company’s plans for the long-term return to and continuation as a going concern include financing the Company’s future operations through sales of its common stock and/or debt and the eventual profitable exploitation of its mining properties. Additionally, the current capital markets and general economic conditions in the United States are significant obstacles to raising the required funds. These factors raise substantial doubt about the Company’s ability to continue as a going concern. The Company is currently investigating a number of alternatives for raising additional capital with potential investors, lessees and joint venture partners. The consolidated financial statements do not include any adjustments that might be necessary should the Company be unable to continue as a going concern. If the going concern basis was not appropriate for these financial statements, adjustments would be necessary in the carrying value of assets and liabilities, the reported expenses and the balance sheet classifications used. Reclassifications Certain reclassifications have been made to conform prior year’s data to the current presentation. These reclassifications have no effect on previously reported operations, stockholders’ equity (deficit) or cash flows. Principles of Consolidation The Consolidated Financial Statements include the accounts of the Company and its wholly owned subsidiaries, Thunder Mountain Resources, Inc. and South Mountain Mines, Inc. after elimination of the intercompany accounts and transactions. Accounting Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The more significant areas requiring the use of management estimates and assumptions include the carrying value of properties and mineral claims, environmental remediation liabilities, deferred tax assets, stock based compensation and the fair value of financial and derivative instruments. Management’s estimates and assumptions are based on historical experience and other assumptions believed to be reasonable under the circumstances. Actual results could differ from those estimates. Cash and cash equivalents For the purposes of the balance sheet and statement of cash flows, the Company considers all highly liquid investments with a maturity of three months or less when purchased to be a cash equivalent. Foreign currency translation The Company’s functional currency is the United States dollar. Transactions and account balances originally stated in currencies other than the United States dollar have been translated into United States dollars as follows: · Revenue and expense items at the rate of exchange in effect on the dates they occur. · Non-monetary assets and liabilities at historical exchange rates. · Monetary assets and liabilities at the exchange rate in effect at the balance sheet date. Transaction gains and losses are recorded in the statement of operations in the period in which they occur. Income Taxes The Company recognizes deferred income tax liabilities or assets at the end of each period using the tax rate expected to be in effect when the taxes are actually paid or recovered. A valuation allowance is recognized on deferred tax assets when it is more likely than not that some or all of the deferred tax assets will not be realized. The Company has evaluated all tax positions for open years and has concluded that it has no material unrecognized tax benefits. Fair Value Measures Accounting Standard Codification (“ASC”) Topic 820, “Fair Value Measurements” requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. ASC820 establishes a fair value hierarchy based on the level of independent, objective evidence surrounding the inputs used to measure fair value. A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. ASC prioritizes the inputs into three levels that may be used to measure fair value: The Company discloses the following information for each class of assets and liabilities that are measured at fair value: 1. the fair value measurement; 2. the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3); 3. for fair value measurements using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: a. total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings, and a description of where those gains or losses included in earnings are reported in the statement of operations; b. the amount of these gains or losses attributable to the change in unrealized gains or losses relating to those assets or liabilities still held at the reporting period date and a description of where those unrealized gains or losses are reported; c. purchases, sales, issuances, and settlements (net); and d. transfers into and/or out of Level 3. 4. the amount of the total gains or losses for the period included in earnings that are attributable to the change in unrealized gains or losses relating to those assets and liabilities still held at the reporting date and a description of where those unrealized gains or losses are reported in the statement of operations; and 5. in annual periods only, the valuation technique(s) used to measure fair value and a discussion of changes in valuation techniques, if any, during the period. The table below sets forth the Company’s financial assets that were accounted for at fair value on a recurring basis as of December 31, 2015 and 2014: 2015 2014 Input Hierarchy level Cash and cash equivalents $ 12,143 $ 31,992 Level 1 Mining Properties and Claims The Company capitalizes costs for acquiring mineral properties and expenses costs to maintain mineral rights and leases as incurred. Exploration costs are expensed in the period in which they occur. Should a property reach the production stage, these capitalized costs would be amortized using the units-of-production method on the basis of periodic estimates of ore reserves. Mineral properties are periodically assessed for impairment of value and any subsequent losses are charged to operations at the time of impairment. If a property is abandoned or sold, its capitalized costs are charged to operations. Investments in Joint Venture The Company’s accounting policy for joint ventures is as follows: 1. The Company uses the cost method when it does not have joint control or significant influence in a joint venture. Under the cost method, these investments are carried at cost. If other than temporary impairment in value is determined, it would then be charged to current net income or loss. 2. If the Company enters into a joint venture in which there is joint control between the parties or the Company has significant influence, the equity method is utilized whereby the Company’s share of the ventures’ earnings and losses is included in the statement of operations as earnings in joint ventures and its investments therein are adjusted by a similar amount. If other than temporary impairment in value is determined, it would then be charged to current net income or loss. In a joint venture where the Company holds more than 50% of the voting interest and has significant influence, the joint venture is consolidated with the presentation of non-controlling interest. In determining whether significant influences exist, the Company considers its participation in policy-making decisions and its representation on the venture’s management committee. Reclamation and Remediation The Company’s operations have been, and are subject to, standards for mine reclamation that have been established by various governmental agencies. The Company would record the fair value of an asset retirement obligation as a liability in the period in which the Company incurred a legal obligation for the retirement of tangible long-lived assets. A corresponding asset would also be recorded and depreciated over the life of the asset. After the initial measurement of the asset retirement obligation, the liability is adjusted at the end of each reporting period to reflect changes in the estimated future cash flows underlying the obligation. Determination of any amounts recognized upon adoption is based upon numerous estimates and assumptions, including future retirement costs, future inflation rates and the credit-adjusted risk-free interest rates. For non-operating properties, the Company accrues costs associated with environmental remediation obligations when it is probable that such costs will be incurred and they are reasonably estimable. Such costs are based on management’s estimate of amounts expected to be incurred when the remediation work is performed. Share-Based Compensation Share-based payments to employees and directors, including grants of employee stock options, are measured at fair value and expensed in the statement of operations over the vesting period. Recent Accounting Pronouncements Other accounting standards that have been issued or proposed by FASB that do not require adoption until a future date are not expected to have a material impact on the consolidated financial statements upon adoption. The Company does not discuss recent pronouncements that are not anticipated to have an impact on or are unrelated to its financial condition, results of operations, cash flows or disclosures. Net Income (Loss) Per Share The Company is required to have dual presentation of basic earnings per share (“EPS”) and diluted EPS. Basic EPS is computed as net income divided by the weighted average number of common shares outstanding for the period. Diluted EPS is calculated based on the weighted average number of common shares outstanding during the period plus the effect of potentially dilutive common stock equivalents, including options and warrants to purchase the Company’s common stock. For year ended, 2015 2014 Stock options 3,990,000 2,990,000 Warrants 2,795,000 5,015,000 Total possible dilution 6,785,000 8,005,000

2. Commitments

2. Commitments	12 Months Ended
	Dec. 31, 2015
Notes
2. Commitments	2. Commitments On March 21, 2011, the Company signed an exploration agreement with Newmont Mining Corporation (“Newmont”) on the Trout Creek Project that significantly expands the Trout Creek target area. Newmont’s private mineral package added to the Project surrounds the Company’s South Mountain claim group and consists of about 9,565 acres within a thirty-square mile Area of Influence defined in the agreement. Under the terms of the agreement, the Company is responsible for conducting the exploration program and is obligated to expend a minimum of $150,000 over the ensuing two years, with additional expenditures possible in future years. On October 1, 2015, the Company signed an Amendment with Newmont USA Limited that modifies and extends the original Trout Creek Joint Exploration Agreement. The extension allows the Company modified work commitments on the project reducing the annual amount to $150,000 of work obligations by October 31, 2016.

3. South Mountain Project LLC

3. South Mountain Project LLC	12 Months Ended
	Dec. 31, 2015
Notes
3. South Mountain Project LLC	3. South Mountain Project On November 8, 2012, the Company, through its wholly-owned subsidiary South Mountain Mines, Inc., (“SMMI”), and Idaho State Gold Company II, LLC (“ISGC II”) formed the Owyhee Gold Trust, LLC, (“OGT”) a limited liability company. The Company’s initial contribution in accordance with the Operating Agreement, was the non-cash contribution of its South Mountain Mine property and related mining claims located in southwestern Idaho in Owyhee County which had a carrying value of $479,477 at the date of contribution, but for purposes of the Operating Agreement, valued at $6.725 Million. As its initial contribution to OGT, ISGC II agreed to fund operations totaling $18 million; or $8 million if the Company exercises its option to participate pro-rata after ISGC II expends $8 million and completes work commitments including a Feasibility Study, and a certain amount of required underground core drilling. ISGC II was the initial manager of OGT LLC. Upon payment of $1 million, and a work commitment of $2 million in pre-determined qualifying expenditures not later than December 31, 2014, ISGC II was to receive 2,000 units representing a vested 25% ownership. As of December 31, 2014, none of these ownership units had been issued to ISGC II. Through December 31, 2014, the Company accounted for its investment in the OGT by the cost method. On January 27, 2015, SMMI became manager of the OGT under the terms of the November 8, 2012 operating agreement, because ISGC II had effectively resigned under the Agreement. This appointment as Manager was further ratified by a Judge`s Court Order on March 1, 2016.Beginning in January 2015, SMMI paid OGT’s expenses to ensure ongoing operations at the site. During 2015, a total of $693,592 in expenses have been incurred relating to OGT operations. The Company has recognized these expenses in these consolidated financial statements because, due to the dispute discussed below, it is not clear as to whether SMMI will be reimbursed by OGT. Included in the total expenses is $274,000 of compensation costs for services performed relating to the operations of OGT. These costs were earned by three of the Company’s officers: Eric Jones, President and Chief Executive Officer - $110,000, James Collard, Vice President and Chief Operating Officer - $110,000, and Larry Thackery, Chief Financial Officer - $54,000. None of the compensation has been paid resulting in accrued payroll of $274,000 at December 31, 2015. SMMI maintains that ISGC II did not earn its ownership units, and resigned under the terms of the Operating Agreement, causing SMMI to become manager. ISGC II did not agree that SMMI became manager of OGT in early 2015. However, that disagreement was corrected on March 1, 2016, when a Judge`s Order stipulated that SMMI was in fact Manager. The parties have discontinued all discussions as to possible courses of agreement and cure. In December 2015, the Company received service of a Complaint that had been filed but not served on June 22, 2015, namely Idaho State Gold Co. II, LLC, an Idaho limited liability company; and, Owyhee Gold Territory, LLC, an Idaho limited liability company v. Thunder Mountain Gold, Inc. a Nevada corporation At December 31, 2015, because of the uncertainty as to the status of OGT and the management thereof, the Company has continued to account for its investment at cost and has recognized the expenses incurred in 2015 for the operation of OGT.

4. Related Party Convertible No

4. Related Party Convertible Notes Payable	12 Months Ended
	Dec. 31, 2015
Notes
4. Related Party Convertible Notes Payable	4. Related Party Convertible Notes Payable On December 9, 2014 the Company executed two promissory notes payable to directors, Eric Jones and Jim Collard. The amount of the notes was $25,000 each for a total of $50,000, and identical in terms. The interest rate on these notes is 10% per month of the principal balance. The notes were due in full no later than July 1, 2015 and had a minimum amount due of 5 months of interest if the notes are paid back earlier. Interest expense recorded in connection with these notes was $60,000 during the year ended December 31, 2015. The original convertible notes contained a beneficial conversion feature of $13,492 which was recognized as a discount on the notes on the date of issuance. The discount was amortized over the note term using the straight-line method, which approximates the effective interest method. For the year ended December 31, 2015, the Company recorded $11,565 in interest expense related to the amortization of the discount. On July 1, 2015, these notes were extended to December 31, 2015. As part of this extension the outstanding interest payable on the notes of $33,616 was added to the principal balance of $50,000 resulting in a new outstanding principal balance of $83,616. The interest charge remains the same, as per the original notes agreement at $5,000 per month. The extension contained a conversion feature. The note holder can convert all of the outstanding principal and interest at 75% of the average closing bid price of the Company for the 20 days prior to the notice of conversion. The fair value of the conversion feature using the Black Scholes model was $ 68,726 . This amount was determined to be substantial under applicable accounting principles requiring the debt amendment to be accounted for as a debt extinguishment. An expense of $ 68,726 was recorded to recognize the loss on modification of debt during the year ended December 31, 2015. During November and December of 2015, Jim Collord and Eric Jones advanced additional funds of $30,000 and $27,460 respectively. See Note 9 “Subsequent Events”.

5. Related Party Transactions

5. Related Party Transactions	12 Months Ended
	Dec. 31, 2015
Notes
5. Related Party Transactions	5. Related Party transactions: In addition to the related party notes payable discussed in Note 4, the Company has engaged Baird Hanson LLP, a company owned by one of the Company’s directors, to provide legal services in the OGT matter (see Note 3). During the year ended December 31, 2015, total legal expenses of $123,038 have been incurred for these services; the amount due to Baird Hanson LLP is $123,038 at December 31, 2015.

6. Stockholders' Equity

6. Stockholders' Equity	12 Months Ended
	Dec. 31, 2015
Notes
6. Stockholders' Equity	6. Stockholders’ Equity The Company’s common stock has a par value of $0.001 with 200,000,000 shares authorized. The Company also has 5,000,000 authorized shares of preferred stock with a par value of $0.0001. During the year ended December 31, 2014, the Company: · · · During the year ended December 31, 2015, the Company sold 4,000,000 shares at $0.05 per share for total proceeds of $200,000. No warrants were issued with the shares. The following is a summary of the Company’s outstanding warrants: Shares Exercise Price Outstanding at December 31, 2013 650,000 $ 0.15 Warrants issued 4,365,000 0.15 Outstanding at December 31, 2014 5,015,000 $ 0.15 Expired (650,000) (0.15) Outstanding at December 31, 2015 4,365,000 $ 0.15 Warrants outstanding at December 31, 2015 expire in 2016.

7. Stock Options

7. Stock Options	12 Months Ended
	Dec. 31, 2015
Notes
7. Stock Options	7. Stock Options The Company has established a Stock Option Incentive Plan (“SIP”) to authorize the granting of stock options up to 10 percent of the total number of issued and outstanding shares of common stock to employees, directors and consultants. Upon exercise of options, shares are issued from the available authorized shares of the Company. Option awards are generally granted with an exercise price equal to the fair market value of the Company’s stock at the date of grant. On February 6, 2015, the Board approved a grant of one million options to purchase shares of common stock under the SIP to Directors, Executive Officers and other non-employees’ consultants. The granted options have been valued and recorded using the Black Scholes model. The Black Scholes calculation on the 1,000,000 options that were issued was a fair value of $0.06 per option ($60,000 in total). The SIP was approved by shareholder vote during the January 20, 2015 annual shareholder meeting. The options were fully vested upon grant and recognized as compensation expense for the year ended December 31, 2015. The fair value of each option award was estimated on the date of the grant using the assumptions noted in the following table: Stock price $ 0.06 Exercise price $ 0.06 Expected volatility 230.09% Expected dividends - Expected terms (in years) 5.0 Risk-free rate 1.31% The following is a summary of the Company’s options issued under the Stock Option Incentive Plan: Shares Weighted Average Exercise Price Outstanding at December 31, 2013 and 2014 2,990,000 $ 0.20 Granted in 2015 1,000,000 0.06 Outstanding and exercisable at December 31, 2015 3,990,000 $ 0.17 The average remaining contractual term of the options outstanding and exercisable at December 31, 2015 was 1.85 years. As of December 31, 2015 options outstanding and exercisable had no aggregate intrinsic value.

8. Income Taxes

8. Income Taxes	12 Months Ended
	Dec. 31, 2015
Notes
8. Income Taxes	8. Income Taxes The Company did not recognize a tax provision or benefit for the years ended December 31, 2015 and 2014. At December 31, 2015 and 2014, the Company had deferred tax assets which were fully reserved by valuation allowances due to the likelihood of expiration of these deferred tax benefits prior to the Company generating future taxable income sufficient to utilize the deferred tax benefits to reduce tax expense from those future periods. The net deferred tax assets were calculated based on an expected blended future tax rate of 38% for federal and Idaho state purposes. Significant components of net deferred tax assets at December 31, 2015 and 2014 are as follows: 2015 2014 Deferred tax assets: Net operating loss carryforwards $ 2,304,000 $ 1,754,000 Non-deductible share-based compensation 185,000 163,000 Exploration costs 144,000 169,000 Total deferred tax assets 2,633,000 2,086,000 Deferred tax liabilities: Investment in LLC (197,000) - Net deferred tax assets 2,436,000 2,086,000 Less valuation allowance (2,436,000) (2,086,000) Net deferred tax asset $ 0 $ 0 As of December 31, 2015 and 2014, the Company has approximately $6.0 million and $4.6 million, respectively, of federal and state net operating loss carryforwards that expire in 2028 through 2035. The income tax benefit shown in the financial statements for the year ended December 31, 2015 and 2014, differs from the federal statutory rate as follows: 2015 2014 (Provision) benefit at statutory rates $ 351,000 35.0 % $ 147,000 35.0 % State taxes 30,000 3.0 % 11,000 2.6 % Financing related adjustments (31,000) 3.1 % (76,000) (19.6) % Increase in valuation allowance (350,000) 34.9 % (82,000) (18.0) % Total $ 0 - % $ 0 - % The Company has analyzed its filing positions in all jurisdictions where it is required to file income tax returns and found no positions that would require a liability for unrecognized income tax benefits to be recognized. The Company is subject to possible tax examinations for the years 2012 through 2015. The Company will deduct interest and penalties as interest expense on the financial statements.

9. Subsequent Events

9. Subsequent Events	12 Months Ended
	Dec. 31, 2015
Notes
9. Subsequent Events	9. Subsequent Events As discussed in Note 3, the Company is party to litigation regarding its investment in the OGT LLC. On January 11, 2016, the Company answered the complaint it received in December 2015 (the “December Complaint”). In its response, the Company asserts that: · · · On February 16, 2016, ISGC II filed a motion for a more definitive statement asserting that the Company’s response was not specific enough. On March 1, 2016, the Company was awarded a Court Order approving defined stipulations and dismissing of certain portions of a December Complaint. The Court Order acknowledged and confirmed the Company’s assertions, and stipulated that: a. As of March 1, 2016, the Company’s wholly owned subsidiary, SMMI, is the manager of OGT for all lawful purposes and shall have the right to advance the project and the interests of OGT and the South Mountain Mine Project according to the terms of OGT’s November 8, 2012, Operating Agreement and the Parties November 8, 2012, Member Agreement; and b. OGT is the owner of the real property described in the Operating Agreement signed by both parties November 8, 2012, and confirmed by certain Quitclaim Deed and filed on October 31, 2013, without any without any claim or encumbrance by Defendants; and c. ISGC II acknowledges that a Statement of Authority should be filed with the Idaho Secretary of State that identifies SMMI as Manager of OGT effective the date of this Stipulation; and d. Because of conflicts of interest, OGT, and the Company’s subsidiaries THMG and THMR were dismissed from the litigation; and e. ISGC II shall not sell or cause to be sold any of the equipment and assets described in the ISGC II financial reports without prior notice and the concurrence of OGT, with SMMI acting as manager of OGT; and f. ISGC II’s motion for a more definite statement is withdrawn. Because of the Court Order above, ISGC II was required to withdraw their original Complaint. ISGC II filed an amended Complaint on March 14, 2016 in which it claims it is entitled to vesting of Units in OGT based solely upon the funds they spent towards the South Mountain mining project, or based upon an equitable claim. The Company deems their claims erroneous and without merit, and that funds were spent outside of compliance with the Operating Agreement, and without proper controls or accounting. The Company will aggressively and vigorously defend against this lawsuit, and is confident of a positive legal outcome for the Company in Idaho Court. On January 18, 2016, Thunder Mountain Gold, Inc. initiated a private offering for an aggregate, 6,700,000 shares of common stock. There was no minimum offering. The minimum individual subscription was $25,000 for non-insiders. Participation was limited to six people, most of whom were officers and directors, and two accredited investors. There was no placement agent fee paid in the offering, and no accountable or unaccountable expense allowance. Jim Collord and Eric Jones converted $25,000 each from their related notes payables (see Note 4) for a total of 1 million shares. The closing date for the financing was January 22, 2016, and the Company received $335,000 in total cash and non-cash proceeds.

1. Summary of Significant Acc16

1. Summary of Significant Accounting Policies and Business Operations: Reclassifications (Policies)	12 Months Ended
	Dec. 31, 2015
Policies
Reclassifications	Reclassifications Certain reclassifications have been made to conform prior year’s data to the current presentation. These reclassifications have no effect on previously reported operations, stockholders’ equity (deficit) or cash flows.

1. Summary of Significant Acc17

1. Summary of Significant Accounting Policies and Business Operations: Principles of Consolidation (Policies)	12 Months Ended
	Dec. 31, 2015
Policies
Principles of Consolidation	Principles of Consolidation The Consolidated Financial Statements include the accounts of the Company and its wholly owned subsidiaries, Thunder Mountain Resources, Inc. and South Mountain Mines, Inc. after elimination of the intercompany accounts and transactions.

1. Summary of Significant Acc18

1. Summary of Significant Accounting Policies and Business Operations: Accounting Estimates (Policies)	12 Months Ended
	Dec. 31, 2015
Policies
Accounting Estimates	Accounting Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The more significant areas requiring the use of management estimates and assumptions include the carrying value of properties and mineral claims, environmental remediation liabilities, deferred tax assets, stock based compensation and the fair value of financial and derivative instruments. Management’s estimates and assumptions are based on historical experience and other assumptions believed to be reasonable under the circumstances. Actual results could differ from those estimates.

1. Summary of Significant Acc19

1. Summary of Significant Accounting Policies and Business Operations: Cash and Cash Equivalents (Policies)	12 Months Ended
	Dec. 31, 2015
Policies
Cash and Cash Equivalents	Cash and cash equivalents For the purposes of the balance sheet and statement of cash flows, the Company considers all highly liquid investments with a maturity of three months or less when purchased to be a cash equivalent.

1. Summary of Significant Acc20

1. Summary of Significant Accounting Policies and Business Operations: Income Taxes (Policies)	12 Months Ended
	Dec. 31, 2015
Policies
Income Taxes	Income Taxes The Company recognizes deferred income tax liabilities or assets at the end of each period using the tax rate expected to be in effect when the taxes are actually paid or recovered. A valuation allowance is recognized on deferred tax assets when it is more likely than not that some or all of the deferred tax assets will not be realized. The Company has evaluated all tax positions for open years and has concluded that it has no material unrecognized tax benefits.

1. Summary of Significant Acc21

1. Summary of Significant Accounting Policies and Business Operations: Fair Value Measures (Policies)	12 Months Ended
	Dec. 31, 2015
Policies
Fair Value Measures	Fair Value Measures Accounting Standard Codification (“ASC”) Topic 820, “Fair Value Measurements” requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. ASC820 establishes a fair value hierarchy based on the level of independent, objective evidence surrounding the inputs used to measure fair value. A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. ASC prioritizes the inputs into three levels that may be used to measure fair value: The Company discloses the following information for each class of assets and liabilities that are measured at fair value: 1. the fair value measurement; 2. the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3); 3. for fair value measurements using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: a. total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings, and a description of where those gains or losses included in earnings are reported in the statement of operations; b. the amount of these gains or losses attributable to the change in unrealized gains or losses relating to those assets or liabilities still held at the reporting period date and a description of where those unrealized gains or losses are reported; c. purchases, sales, issuances, and settlements (net); and d. transfers into and/or out of Level 3. 4. the amount of the total gains or losses for the period included in earnings that are attributable to the change in unrealized gains or losses relating to those assets and liabilities still held at the reporting date and a description of where those unrealized gains or losses are reported in the statement of operations; and 5. in annual periods only, the valuation technique(s) used to measure fair value and a discussion of changes in valuation techniques, if any, during the period. The table below sets forth the Company’s financial assets that were accounted for at fair value on a recurring basis as of December 31, 2015 and 2014: 2015 2014 Input Hierarchy level Cash and cash equivalents $ 12,143 $ 31,992 Level 1

1. Summary of Significant Acc22

1. Summary of Significant Accounting Policies and Business Operations: Mining Properties and Claims (Policies)	12 Months Ended
	Dec. 31, 2015
Policies
Mining Properties and Claims	Mining Properties and Claims The Company capitalizes costs for acquiring mineral properties and expenses costs to maintain mineral rights and leases as incurred. Exploration costs are expensed in the period in which they occur. Should a property reach the production stage, these capitalized costs would be amortized using the units-of-production method on the basis of periodic estimates of ore reserves. Mineral properties are periodically assessed for impairment of value and any subsequent losses are charged to operations at the time of impairment. If a property is abandoned or sold, its capitalized costs are charged to operations.

1. Summary of Significant Acc23

1. Summary of Significant Accounting Policies and Business Operations: Investments in Joint Venture (Policies)	12 Months Ended
	Dec. 31, 2015
Policies
Investments in Joint Venture	Investments in Joint Venture The Company’s accounting policy for joint ventures is as follows: 1. The Company uses the cost method when it does not have joint control or significant influence in a joint venture. Under the cost method, these investments are carried at cost. If other than temporary impairment in value is determined, it would then be charged to current net income or loss. 2. If the Company enters into a joint venture in which there is joint control between the parties or the Company has significant influence, the equity method is utilized whereby the Company’s share of the ventures’ earnings and losses is included in the statement of operations as earnings in joint ventures and its investments therein are adjusted by a similar amount. If other than temporary impairment in value is determined, it would then be charged to current net income or loss. In a joint venture where the Company holds more than 50% of the voting interest and has significant influence, the joint venture is consolidated with the presentation of non-controlling interest. In determining whether significant influences exist, the Company considers its participation in policy-making decisions and its representation on the venture’s management committee.

1. Summary of Significant Acc24

1. Summary of Significant Accounting Policies and Business Operations: Reclamation and Remediation (Policies)	12 Months Ended
	Dec. 31, 2015
Policies
Reclamation and Remediation	Reclamation and Remediation The Company’s operations have been, and are subject to, standards for mine reclamation that have been established by various governmental agencies. The Company would record the fair value of an asset retirement obligation as a liability in the period in which the Company incurred a legal obligation for the retirement of tangible long-lived assets. A corresponding asset would also be recorded and depreciated over the life of the asset. After the initial measurement of the asset retirement obligation, the liability is adjusted at the end of each reporting period to reflect changes in the estimated future cash flows underlying the obligation. Determination of any amounts recognized upon adoption is based upon numerous estimates and assumptions, including future retirement costs, future inflation rates and the credit-adjusted risk-free interest rates. For non-operating properties, the Company accrues costs associated with environmental remediation obligations when it is probable that such costs will be incurred and they are reasonably estimable. Such costs are based on management’s estimate of amounts expected to be incurred when the remediation work is performed.

1. Summary of Significant Acc25

1. Summary of Significant Accounting Policies and Business Operations: Share-based Compensation (Policies)	12 Months Ended
	Dec. 31, 2015
Policies
Share-based Compensation	Share-Based Compensation Share-based payments to employees and directors, including grants of employee stock options, are measured at fair value and expensed in the statement of operations over the vesting period.

1. Summary of Significant Acc26

1. Summary of Significant Accounting Policies and Business Operations: Recent Accounting Pronouncements (Policies)	12 Months Ended
	Dec. 31, 2015
Policies
Recent Accounting Pronouncements	Recent Accounting Pronouncements Other accounting standards that have been issued or proposed by FASB that do not require adoption until a future date are not expected to have a material impact on the consolidated financial statements upon adoption. The Company does not discuss recent pronouncements that are not anticipated to have an impact on or are unrelated to its financial condition, results of operations, cash flows or disclosures.

1. Summary of Significant Acc27

1. Summary of Significant Accounting Policies and Business Operations: Net Income (loss) Per Share (Policies)	12 Months Ended
	Dec. 31, 2015
Policies
Net Income (loss) Per Share	Net Income (Loss) Per Share The Company is required to have dual presentation of basic earnings per share (“EPS”) and diluted EPS. Basic EPS is computed as net income divided by the weighted average number of common shares outstanding for the period. Diluted EPS is calculated based on the weighted average number of common shares outstanding during the period plus the effect of potentially dilutive common stock equivalents, including options and warrants to purchase the Company’s common stock. For year ended, 2015 2014 Stock options 3,990,000 2,990,000 Warrants 2,795,000 5,015,000 Total possible dilution 6,785,000 8,005,000

1. Summary of Significant Acc28

1. Summary of Significant Accounting Policies and Business Operations: Fair Value Measures: Fair Value, Assets Measured on Recurring and Nonrecurring Basis (Tables)	12 Months Ended
	Dec. 31, 2015
Tables/Schedules
Fair Value, Assets Measured on Recurring and Nonrecurring Basis	2015 2014 Input Hierarchy level Cash and cash equivalents $ 12,143 $ 31,992 Level 1

1. Summary of Significant Acc29

1. Summary of Significant Accounting Policies and Business Operations: Net Income (loss) Per Share: Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2015
Tables/Schedules
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	For year ended, 2015 2014 Stock options 3,990,000 2,990,000 Warrants 2,795,000 5,015,000 Total possible dilution 6,785,000 8,005,000

6. Stockholders' Equity_ Schedu

6. Stockholders' Equity: Schedule of Warrants Outstanding (Tables)	12 Months Ended
	Dec. 31, 2015
Tables/Schedules
Schedule of Warrants Outstanding	Shares Exercise Price Outstanding at December 31, 2013 650,000 $ 0.15 Warrants issued 4,365,000 0.15 Outstanding at December 31, 2014 5,015,000 $ 0.15 Expired (650,000) (0.15) Outstanding at December 31, 2015 4,365,000 $ 0.15

7. Stock Options_ Schedule of S

7. Stock Options: Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Tables)	12 Months Ended
	Dec. 31, 2015
Tables/Schedules
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	Stock price $ 0.06 Exercise price $ 0.06 Expected volatility 230.09% Expected dividends - Expected terms (in years) 5.0 Risk-free rate 1.31%

7. Stock Options_ Schedule of32

7. Stock Options: Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value (Tables)	12 Months Ended
	Dec. 31, 2015
Tables/Schedules
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value	Shares Weighted Average Exercise Price Outstanding at December 31, 2013 and 2014 2,990,000 $ 0.20 Granted in 2015 1,000,000 0.06 Outstanding and exercisable at December 31, 2015 3,990,000 $ 0.17

8. Income Taxes_ Schedule of De

8. Income Taxes: Schedule of Deferred Tax Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2015
Tables/Schedules
Schedule of Deferred Tax Assets and Liabilities	2015 2014 Deferred tax assets: Net operating loss carryforwards $ 2,304,000 $ 1,754,000 Non-deductible share-based compensation 185,000 163,000 Exploration costs 144,000 169,000 Total deferred tax assets 2,633,000 2,086,000 Deferred tax liabilities: Investment in LLC (197,000) - Net deferred tax assets 2,436,000 2,086,000 Less valuation allowance (2,436,000) (2,086,000) Net deferred tax asset $ 0 $ 0

8. Income Taxes_ Schedule of Ef

8. Income Taxes: Schedule of Effective Income Tax Rate Reconciliation (Tables)	12 Months Ended
	Dec. 31, 2015
Tables/Schedules
Schedule of Effective Income Tax Rate Reconciliation	2015 2014 (Provision) benefit at statutory rates $ 351,000 35.0 % $ 147,000 35.0 % State taxes 30,000 3.0 % 11,000 2.6 % Financing related adjustments (31,000) 3.1 % (76,000) (19.6) % Increase in valuation allowance (350,000) 34.9 % (82,000) (18.0) % Total $ 0 - % $ 0 - %

1. Summary of Significant Acc35

1. Summary of Significant Accounting Policies and Business Operations (Details)	12 Months Ended
	Dec. 31, 2015
Details
Nature of Operations	Business Operations Thunder Mountain Gold, Inc. (“Thunder Mountain” or “the Company”) was originally incorporated under the laws of the State of Idaho on November 9, 1935, under the name of Montgomery Mines, Inc. In April 1978, the Montgomery Mines Corporation was obtained by a group of the Thunder Mountain property holders and changed its name to Thunder Mountain Gold, Inc., with the primary goal to further develop their holdings in the Thunder Mountain Mining District, located in Valley County, Idaho. Thunder Mountain Gold, Inc. takes its name from the Thunder Mountain Mining District, where its principal lode mining claims were located. For several years, the Company’s activities were restricted to maintaining its property position and exploration activities. During 2005, the Company sold its holdings in the Thunder Mountain Mining District. During 2007, the Company acquired the South Mountain Mines property in southwest Idaho and initiated exploration activities on that property, which continue today.
Entity Incorporation, Date of Incorporation	Nov. 9, 1935
Substantial Doubt about Going Concern	The accompanying consolidated financial statements have been prepared under the assumption that the Company will continue as a going concern. The Company is an exploration stage company and has historically incurred losses and does not have sufficient cash at December 31, 2015 to fund normal operations for the next 12 months. The Company has no recurring source of revenue and its ability to continue as a going concern is dependent on the Company’s ability to raise capital to fund its future exploration and working capital requirements.
Substantial Doubt about Going Concern, Management's Evaluation	The Company’s plans for the long-term return to and continuation as a going concern include financing the Company’s future operations through sales of its common stock and/or debt and the eventual profitable exploitation of its mining properties. Additionally, the current capital markets and general economic conditions in the United States are significant obstacles to raising the required funds. These factors raise substantial doubt about the Company’s ability to continue as a going concern. The Company is currently investigating a number of alternatives for raising additional capital with potential investors, lessees and joint venture partners.

1. Summary of Significant Acc36

1. Summary of Significant Accounting Policies and Business Operations: Net Income (loss) Per Share: Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Details
Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units	$ 3,990,000	$ 2,990,000
Warrants	$ 2,795,000	$ 5,015,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	6,785,000	8,005,000

2. Commitments (Details)

2. Commitments (Details) - USD ($)	13 Months Ended	27 Months Ended
	Oct. 31, 2016	Mar. 21, 2013
Details
Minimum expenditure through date	$ 150,000	$ 150,000

3. South Mountain Project LLC (

3. South Mountain Project LLC (Details) - USD ($)	Nov. 09, 2012	Dec. 31, 2015
Details
Contribution of Property	$ 479,477
Legal Matters and Contingencies		On January 27, 2015, SMMI became manager of the OGT under the terms of the November 8, 2012 operating agreement, because ISGC II had effectively resigned under the Agreement. This appointment as Manager was further ratified by a Judge`s Court Order on March 1, 2016.Beginning in January 2015, SMMI paid OGT’s expenses to ensure ongoing operations at the site. During 2015, a total of $693,592 in expenses have been incurred relating to OGT operations. The Company has recognized these expenses in these consolidated financial statements because, due to the dispute discussed below, it is not clear as to whether SMMI will be reimbursed by OGT. Included in the total expenses is $274,000 of compensation costs for services performed relating to the operations of OGT. These costs were earned by three of the Company’s officers: Eric Jones, President and Chief Executive Officer - $110,000, James Collard, Vice President and Chief Operating Officer - $110,000, and Larry Thackery, Chief Financial Officer - $54,000. None of the compensation has been paid resulting in accrued payroll of $274,000 at December 31, 2015. SMMI maintains that ISGC II did not earn its ownership units, and resigned under the terms of the Operating Agreement, causing SMMI to become manager. ISGC II did not agree that SMMI became manager of OGT in early 2015. However, that disagreement was corrected on March 1, 2016, when a Judge`s Order stipulated that SMMI was in fact Manager. The parties have discontinued all discussions as to possible courses of agreement and cure. In December 2015, the Company received service of a Complaint that had been filed but not served on June 22, 2015, namely Idaho State Gold Co. II, LLC, an Idaho limited liability company; and, Owyhee Gold Territory, LLC, an Idaho limited liability company v. Thunder Mountain Gold, Inc. a Nevada corporation At December 31, 2015, because of the uncertainty as to the status of OGT and the management thereof, the Company has continued to account for its investment at cost and has recognized the expenses incurred in 2015 for the operation of OGT.

4. Related Party Convertible 39

4. Related Party Convertible Notes Payable (Details) - USD ($)		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Related party convertible notes payable	[1]	$ 171,076	$ 38,435
Amortization of related party notes payable discount		11,565	$ 1,927
Initial loan
Related party convertible notes payable		$ 50,000
Short-term Debt, Weighted Average Interest Rate		10.00%
Interest Expense		$ 60,000
Debt Instrument, Convertible, Beneficial Conversion Feature		13,492
Amortization of related party notes payable discount		11,565
Second loan increase
Related party convertible notes payable		83,616
Debt Instrument, Convertible, Beneficial Conversion Feature		68,726
Increase (Decrease) in Notes Payable, Related Parties, Current		33,616
Loss on modification of debt		68,726
Third loan increase
Related party convertible notes payable		$ 171,076
Short-term Debt, Weighted Average Interest Rate		1.00%
Increase (Decrease) in Notes Payable, Related Parties, Current		$ 30,000
[1]	Note 4

5. Related Party Transactions (

5. Related Party Transactions (Details) - Related Party Legal Fees	12 Months Ended
	Dec. 31, 2015USD ($)
Legal fees paid to related party	$ 123,038
Legal fees paid to related party	$ 123,038

6. Stockholders' Equity (Detail

6. Stockholders' Equity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Feb. 06, 2015
Common Stock, Par Value	$ 0.001	$ 0.001
Common Stock, Shares Authorized	200,000,000	200,000,000
Preferred Stock, Shares Authorized	5,000,000	5,000,000
Preferred Stock, Par Value	$ 0.0001	$ 0.0001
Sale of stock, stock		8,340,000
Private Placement Purchase Warrants Issued		4,170,000
Sale of stock, value	$ 200,000	$ 417,000
Private Placement Purchase Warrants Issued		4,170,000
Sale of Stock, Price Per Share			$ 0.06
Related Party Legal Fees
Sale of stock, stock	4,000,000
Sale of stock, value	$ 200,000
Sale of Stock, Price Per Share	$ 0.05
Professional services, legal and accounting
Sale of stock, stock		300,000
Private Placement Purchase Warrants Issued		150,000
Sale of stock, value		$ 15,000
Private Placement Purchase Warrants Issued		150,000
Accounts payable
Sale of stock, stock		60,000
Private Placement Purchase Warrants Issued		30,000
Sale of stock, value		$ 3,000
Private Placement Purchase Warrants Issued		30,000

6. Stockholders' Equity_ Sche42

6. Stockholders' Equity: Schedule of Warrants Outstanding (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Details
Class of Warrant or Right, Outstanding	4,365,000	5,015,000	650,000
Warrants outstanding, value	$ 0.15	$ 0.15	$ 0.15
Warrants issued		4,365,000
Warrants issued, value		$ 0.15
Warrants expired	(650,000)
Warrants expired, value	$ (0.15)

7. Stock Options (Details)

7. Stock Options (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Feb. 06, 2015
Details
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number			1,000,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price		$ 0.06
Stock options issued for services	$ 60,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	1 year 10 months 6 days

7. Stock Options_ Schedule of44

7. Stock Options: Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Feb. 06, 2015
Details
Sale of Stock, Price Per Share		$ 0.06
Fair Value Assumptions, Exercise Price		$ 0.06
Fair Value Assumptions, Expected Volatility Rate	230.09%
Fair Value Assumptions, Expected Term	5 years
Fair Value Assumptions, Risk Free Interest Rate	1.31%

7. Stock Options_ Schedule of45

7. Stock Options: Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Details
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	3,990,000	2,990,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price		$ 0.20
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures		1,000,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price		$ 0.06
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 0.17

8. Income Taxes_ Schedule of 46

8. Income Taxes: Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Details
Deferred Tax Assets, Operating Loss Carryforwards	$ 2,304,000	$ 1,754,000
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount	185,000	163,000
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount	144,000	169,000
Deferred Tax Assets, Gross	2,633,000	2,086,000
Deferred Tax Liabilities, Net	(197,000)
Deferred Tax Assets, Net	2,436,000	2,086,000
Valuation Allowances and Reserves, Balance	(2,436,000)	(2,086,000)
Deferred Tax Assets, Net of Valuation Allowance	$ 0	$ 0

8. Income Taxes (Details)

8. Income Taxes (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Details
Operating Loss Carryforwards	$ 6	$ 4.6

8. Income Taxes_ Schedule of 48

8. Income Taxes: Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Details
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 351,000	$ 147,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	$ 30,000	$ 11,000
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	3.00%	2.60%
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ (31,000)	$ (76,000)
Effective Income Tax Rate Reconciliation, Deduction, Other, Percent	3.10%	(19.60%)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ (350,000)	$ (82,000)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	34.90%	(18.00%)
Income Tax Expense (Benefit)	$ 0	$ 0

9. Subsequent Events (Details)

9. Subsequent Events (Details)	Jan. 18, 2016	Dec. 31, 2015
Legal matters
Subsequent Event, Description		As discussed in Note 3, the Company is party to litigation regarding its investment in the OGT LLC. On January 11, 2016, the Company answered the complaint it received in December 2015 (the “December Complaint”). In its response, the Company asserts that: · ISGC II failed to make its initial contribution, including earn in requirements described by the OGT agreement; · ISGC II failed to provide accounting consistent with generally accepted accounting practices, along with an independent audit required for issuance of ownership units; and · Significant damages are payable by ISGC II to the Company. On February 16, 2016, ISGC II filed a motion for a more definitive statement asserting that the Company’s response was not specific enough. On March 1, 2016, the Company was awarded a Court Order approving defined stipulations and dismissing of certain portions of a December Complaint. The Court Order acknowledged and confirmed the Company’s assertions, and stipulated that: a. As of March 1, 2016, the Company’s wholly owned subsidiary, SMMI, is the manager of OGT for all lawful purposes and shall have the right to advance the project and the interests of OGT and the South Mountain Mine Project according to the terms of OGT’s November 8, 2012, Operating Agreement and the Parties November 8, 2012, Member Agreement; and b. OGT is the owner of the real property described in the Operating Agreement signed by both parties November 8, 2012, and confirmed by certain Quitclaim Deed and filed on October 31, 2013, without any without any claim or encumbrance by Defendants; and c. ISGC II acknowledges that a Statement of Authority should be filed with the Idaho Secretary of State that identifies SMMI as Manager of OGT effective the date of this Stipulation; and d. Because of conflicts of interest, OGT, and the Company’s subsidiaries THMG and THMR were dismissed from the litigation; and e. ISGC II shall not sell or cause to be sold any of the equipment and assets described in the ISGC II financial reports without prior notice and the concurrence of OGT, with SMMI acting as manager of OGT; and f. ISGC II’s motion for a more definite statement is withdrawn. Because of the Court Order above, ISGC II was required to withdraw their original Complaint. ISGC II filed an amended Complaint on March 14, 2016 in which it claims it is entitled to vesting of Units in OGT based solely upon the funds they spent towards the South Mountain mining project, or based upon an equitable claim. The Company deems their claims erroneous and without merit, and that funds were spent outside of compliance with the Operating Agreement, and without proper controls or accounting. The Company will aggressively and vigorously defend against this lawsuit, and is confident of a positive legal outcome for the Company in Idaho Court.
Private offering
Subsequent Event, Description	On January 18, 2016, Thunder Mountain Gold, Inc. initiated a private offering for an aggregate, 6,700,000 shares of common stock. There was no minimum offering. The minimum individual subscription was $25,000 for non-insiders. Participation was limited to six people, most of whom were officers and directors, and two accredited investors. There was no placement agent fee paid in the offering, and no accountable or unaccountable expense allowance. Jim Collord and Eric Jones converted $25,000 each from their related notes payables (see Note 4) for a total of 1 million shares. The closing date for the financing was January 22, 2016, and the Company received $335,000 in total cash and non-cash proceeds.