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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,
 Vku79G8bssUBK/e42Q8u1aq/y8NxxEvywAbC9qgebLMTnsgv+6L3WdNPZhEAyn3h
 uuRfp5nC+KMShc8s8pkdkQ==

<SEC-DOCUMENT>0001144204-07-068664.txt : 20071220
<SEC-HEADER>0001144204-07-068664.hdr.sgml : 20071220
<ACCEPTANCE-DATETIME>20071220175350
ACCESSION NUMBER:		0001144204-07-068664
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071210
FILED AS OF DATE:		20071220
DATE AS OF CHANGE:		20071220

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MOUNTAINS WEST EXPLORATION INC
		CENTRAL INDEX KEY:			0000319040
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
		IRS NUMBER:				850280415
		STATE OF INCORPORATION:			NM
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		7609 RALSTON ROAD
		CITY:			ARVADA
		STATE:			CO
		ZIP:			80002
		BUSINESS PHONE:		303 422 8127

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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Gross Peter
		CENTRAL INDEX KEY:			0001421780

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-09500
		FILM NUMBER:		071320318

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		310-450-0187

	MAIL ADDRESS:	
		STREET 1:		2519 32ND STREET
		CITY:			SANTA MONICA
		STATE:			CA
		ZIP:			90405
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>v097791_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2007-12-10</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001421780</rptOwnerCik>
            <rptOwnerName>Gross Peter</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2519 32ND STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SANTA MONICA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90405</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>73470</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Peter Gross</signatureName>
        <signatureDate>2007-12-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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