-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 VVRTWb1qGAbAOHxfFPO1aPeJUSojvSjn0pXyn/YWgSpkMBaCifI9Ic77MjTxCrAT
 ev1ckrkLvRZiP4ZId8SL+Q==

<SEC-DOCUMENT>0001065949-04-000107.txt : 20041110
<SEC-HEADER>0001065949-04-000107.hdr.sgml : 20041110
<ACCEPTANCE-DATETIME>20041109171438
ACCESSION NUMBER:		0001065949-04-000107
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041103
FILED AS OF DATE:		20041109
DATE AS OF CHANGE:		20041109

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ILER DENIS R
		CENTRAL INDEX KEY:			0001282415

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-09500
		FILM NUMBER:		041130585

	BUSINESS ADDRESS:	
		STREET 1:		7609 RALSTON ROAD
		CITY:			ARVADA
		STATE:			CO
		ZIP:			80002

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MOUNTAINS WEST EXPLORATION INC
		CENTRAL INDEX KEY:			0000319040
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				850280415
		STATE OF INCORPORATION:			NM
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		616 CENTRAL AVE SE STE 230
		CITY:			ALBUQUERQUE
		STATE:			NM
		ZIP:			87102
		BUSINESS PHONE:		5052434949

	MAIL ADDRESS:	
		STREET 1:		P O BOX 754
		CITY:			TRINIDAD
		STATE:			CO
		ZIP:			81082
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2004-11-03</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000319040</issuerCik>
        <issuerName>MOUNTAINS WEST EXPLORATION INC</issuerName>
        <issuerTradingSymbol>MWEX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001282415</rptOwnerCik>
            <rptOwnerName>ILER DENIS R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2000 WADSWORTH BLVD., PMB 179</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LAKEWOOD</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80214</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12980729</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>As Manager of Skye Blue Ventures, LLC</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9008332</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>As Manager of Skye Blue Ventures, LLC</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/Denis R. Iler</signatureName>
        <signatureDate>2004-11-09</signatureDate>
    </ownerSignature>
</ownershipDocument>

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