Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	May 15, 2017
Document And Entity Information
Entity Registrant Name	UNITED STATES ANTIMONY CORP
Entity Central Index Key	0000101538
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		67,183,466
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2017