Thunder Mountain Gold, Inc. Consolidated Balance Sheets - Parenthetical - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Details
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 156,694	$ 124,384
Preferred Stock, Par or Stated Value Per Share	$ 0.0001	$ 0.0001
Preferred Stock, Shares Authorized	5,000,000	5,000,000
Preferred Stock, Shares Outstanding	0	0
Common Stock, Par or Stated Value Per Share	$ 0.001	$ 0.001
Common Stock, Shares Authorized	200,000,000	200,000,000
Common Stock, Shares, Issued	60,145,579	57,645,579
Common Stock, Shares, Outstanding	60,145,579	57,645,579