-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 GRgYHk8v2gSEGtdguCyd3AYEQPAXSon15Zha75Qb9aG9NG9s0hRoiU2l/FXRp7eM
 wTThIc+zVYL37IYRT7TEHA==

<SEC-DOCUMENT>0001507165-10-000001.txt : 20101228
<SEC-HEADER>0001507165-10-000001.hdr.sgml : 20101228
<ACCEPTANCE-DATETIME>20101228161359
ACCESSION NUMBER:		0001507165-10-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20101228
FILED AS OF DATE:		20101228
DATE AS OF CHANGE:		20101228

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Reed Kenneth M
		CENTRAL INDEX KEY:			0001507165

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08675
		FILM NUMBER:		101276091

	MAIL ADDRESS:	
		STREET 1:		328 ADAMS STREET
		CITY:			MILTON
		STATE:			MA
		ZIP:			02186

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			REED SUSAN K
		CENTRAL INDEX KEY:			0001507166

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08675
		FILM NUMBER:		101276092

	MAIL ADDRESS:	
		STREET 1:		328 ADAMS STREET
		CITY:			MILTON
		STATE:			MA
		ZIP:			02186

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UNITED STATES ANTIMONY CORP
		CENTRAL INDEX KEY:			0000101538
		STANDARD INDUSTRIAL CLASSIFICATION:	PRIMARY SMELTING & REFINING OF NONFERROUS METALS [3330]
		IRS NUMBER:				810305822
		STATE OF INCORPORATION:			MT
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		P O BOX 643
		CITY:			THOMPSON FALLS
		STATE:			MT
		ZIP:			59873
		BUSINESS PHONE:		4068273523

	MAIL ADDRESS:	
		STREET 1:		PO BOX 643
		CITY:			THOMPSON FALLS
		STATE:			MT
		ZIP:			59873-0643

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AGAU MINES INC
		DATE OF NAME CHANGE:	19740728
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-12-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000101538</issuerCik>
        <issuerName>UNITED STATES ANTIMONY CORP</issuerName>
        <issuerTradingSymbol>UAMY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001507165</rptOwnerCik>
            <rptOwnerName>Reed Kenneth M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>328 ADAMS STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MILTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02186</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001507166</rptOwnerCik>
            <rptOwnerName>REED SUSAN K</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>328 ADAMS STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MILTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02186</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock $0.01 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2010-12-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>500000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.3</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3549579</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote 2</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock $0.01 par value per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4000000</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote 3</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock $0.01 par value per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>53200</value>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote 4</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Purchase from the issuer.</footnote>
        <footnote id="F2">Represents 99.9% of the shares held by The Reed Family Limited Partnership I , a Massachusetts limited partnership in which Kenneth M. Reed holds a 49.9% partnership interest (1% as the general partner and 48.9%  as a limited partner) and Susan K. Reed holds a 50% partnership interest as a limited partner. Kenneth M. Reed and Susan K. Reed are husband and wife.</footnote>
        <footnote id="F3">Represents shares held in The Susan K. Reed Grantor Retained Annuity Trust II (Trust).  Susan K. Reed is the annuity recipient and the sole trustee of the Trust.  Kenneth M. Reed disclaims beneficial ownership of the shares held by the Trust.</footnote>
        <footnote id="F4">Represents the number of shares held in the Kenneth M. Reed, M.D., P.C. Profit Sharing Plan (Plan) in which Kenneth M. Reed has a pecuniary interest as a plan participant. Kenneth M. Reed is the sole trustee of the Plan.  Susan K. Reed disclaims beneficial ownership of the shares held in the Plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ KENNETH M REED</signatureName>
        <signatureDate>2010-12-28</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ SUSAN K REED</signatureName>
        <signatureDate>2010-12-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
