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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001179110-04-017288.txt : 20040830
<SEC-HEADER>0001179110-04-017288.hdr.sgml : 20040830
<ACCEPTANCE-DATETIME>20040830160346
ACCESSION NUMBER:		0001179110-04-017288
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040826
FILED AS OF DATE:		20040830
DATE AS OF CHANGE:		20040830

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GANDER MOUNTAIN CO
		CENTRAL INDEX KEY:			0001277475
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-MISCELLANEOUS SHOPPING GOODS STORES [5940]
		IRS NUMBER:				411990949
		STATE OF INCORPORATION:			MN

	BUSINESS ADDRESS:	
		STREET 1:		4567 AMERICAN BLVD.
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55437

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LINK SHARON K
		CENTRAL INDEX KEY:			0001287778

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50659
		FILM NUMBER:		041005532

	MAIL ADDRESS:	
		STREET 1:		4567 AMEREICAN BLVD W
		CITY:			BLOOMINGTON
		STATE:			MN
		ZIP:			55437
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-08-26</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001277475</issuerCik>
        <issuerName>GANDER MOUNTAIN CO</issuerName>
        <issuerTradingSymbol>GMTN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001287778</rptOwnerCik>
            <rptOwnerName>LINK SHARON K</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4567 AMERICAN BLVD. W.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MINNEAPOLIS</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55437</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Sr. V.P., Finance and Admin.</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>21.45</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-08-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2014-08-25</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This option vest as to one-third of the shares on each of the first, second and third anniversary dates of the date of the grant if the recipient is employed by the company on the applicable date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Jonathan R. Zimmerman on behalf of Sharon K. Link</signatureName>
        <signatureDate>2004-08-30</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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