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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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 AhQDoJwMWp+M/exFdcXUJA==

<SEC-DOCUMENT>0001020569-04-000054.txt : 20040908
<SEC-HEADER>0001020569-04-000054.hdr.sgml : 20040908
<ACCEPTANCE-DATETIME>20040908151359
ACCESSION NUMBER:		0001020569-04-000054
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	19880808
FILED AS OF DATE:		20040908
DATE AS OF CHANGE:		20040908

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IRON MOUNTAIN INC/PA
		CENTRAL INDEX KEY:			0001020569
		STANDARD INDUSTRIAL CLASSIFICATION:	PUBLIC WAREHOUSING & STORAGE [4220]
		IRS NUMBER:				232588479
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		745 ATLANTIC AVENUE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02111
		BUSINESS PHONE:		6175354766

	MAIL ADDRESS:	
		STREET 1:		745 ATLANTIC AVENUE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02111

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PIERCE LEAHY CORP
		DATE OF NAME CHANGE:	19960807

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			REESE C RICHARD
		CENTRAL INDEX KEY:			0001032365

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13045
		FILM NUMBER:		041020577

	BUSINESS ADDRESS:	
		STREET 1:		C/O IRON MOUNTAIN INC
		STREET 2:		745 ATLANTIC AVE 10TH FLR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02111
		BUSINESS PHONE:		6173576966

	MAIL ADDRESS:	
		STREET 1:		C/O IRON MOUNTAIN INC
		STREET 2:		745 ATLANTIC AVE 10TH FLR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02111
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>1988-08-08</periodOfReport>

    <issuer>
        <issuerCik>0001020569</issuerCik>
        <issuerName>IRON MOUNTAIN INC/PA</issuerName>
        <issuerTradingSymbol>(IRM)</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001032365</rptOwnerCik>
            <rptOwnerName>REESE C RICHARD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>100 BELVEDERE STREET</rptOwnerStreet1>
            <rptOwnerStreet2>APT. 9F</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02199</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman of the Board &amp; CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value, $.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2004-08-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1715</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1479028</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value, $.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>64019</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>In trust for children sharing household</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value, $.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1967059</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By contract</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Gift of 1,715 shares to the Iron Mountain Scholarship Program. The Common Stock of Iron Mountain Incorporated split 3-for-2 to all record holders as of June 15, 2004, resulting in reporting person's acquisition of                      519,723 shares of Common Stock. Note: This report is being voluntarily filed at this time to report the effect of the above referenced 3-for-2 stock split. Therefore, there is no price to be reported. In addition, the fictitious date of &quot;08/08/1988&quot; has been used in the &quot;Date of Earliest Transaction&quot; field 3, prior to Table I. Since there is no transaction required to be reported and this field requires that data be inserted, a fictitious date has been used.</footnote>
        <footnote id="F2">The Common Stock of Iron Mountain Incorporated split 3-for-2 to all record holders as of June 15, 2004, resulting in reporting person's acquisition of 22,483 shares indirectly of Common Stock.The reporting person                                disclaims beneficial ownership of all securities held in trust for the benefit of his children, and this report should not be deemed an admission that the reporting person is beneficial owner of such securities for purposes of                    Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.</footnote>
        <footnote id="F3">The Common Stock of Iron Mountain Incorporated split 3-for-2 to all record holders as of June 15, 2004, resulting in reporting person's acquisition of 655,686 shares indirectly of Common Stock. Pursuant to a deferred compensation arrangement relating to Mr. Reese's former services as President of Schooner Capital Corporation (&quot;Schooner&quot;), upon the earlier to occur of (i) sale or exchange by Schooner Capital Trust of substantially all of               the shares of Iron Mountain Incorporated Common Stock, par value $.01 per share (&quot;Common Stock&quot;) held by Schooner Capital Trust and (ii) the cessation of Mr. Reese's employment with Iron Mountain Incorporated,              Schooner Capital Trust is required to transfer such shares of Common Stock to Mr. Reese or cash in an amount equal to then current fair market value of such shares of Common Stock.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>C. Richard Reese</signatureName>
        <signatureDate>2004-09-07</signatureDate>
    </ownerSignature>
</ownershipDocument>

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