Cover - USD ($)	12 Months Ended
	Dec. 31, 2021	Mar. 30, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2021
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021
Current Fiscal Year End Date	--12-31
Entity File Number	001-06412
Entity Registrant Name	Goldrich Mining Company
Entity Central Index Key	0000059860
Entity Tax Identification Number	91-0742812
Entity Incorporation, State or Country Code	AK
Entity Address, Address Line One	2525 E. 29th Ave. Ste. 10B-160
Entity Address, City or Town	Spokane
Entity Address, State or Province	WA
Entity Address, Postal Zip Code	99223-4942
City Area Code	(509)
Local Phone Number	535-7367
Title of 12(b) Security	Common Stock, $0.10 par value
Trading Symbol	GRMC
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 6,084,785
Entity Common Stock, Shares Outstanding		182,448,412
Auditor Name	Assure CPA, LLC
Auditor Location	Spokane, Washington
Auditor Firm ID	444