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     <!-- Rev Number:     1                                                                -->
     <!-- Client Name:    IRON MOUNTAIN INC                                                -->
     <!-- Project Name:   S8 - August 16, 2004                                             -->
     <!-- Firm Name:                                                                       -->
     <TITLE>S8</TITLE>
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<A NAME=A003></A>
<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE="4">UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</FONT><BR>
<FONT FACE="Times New Roman, Times, Serif" SIZE="3">WASHINGTON, D.C. 20549</FONT></H1>

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<A NAME=A004></A>
<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=4>FORM S-8</FONT></H1>

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<A NAME=A005></A>
<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>REGISTRATION STATEMENT UNDER THE<BR>SECURITIES ACT OF 1933<BR> </FONT></H1>


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<p ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE="4"><B>IRON MOUNTAIN INCORPORATED </B></FONT><BR>
<FONT FACE="Times New Roman, Times, Serif" SIZE="2">(Exact name of registrant as
specified in charter) </FONT> </p>


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     <TD WIDTH="10%">&nbsp;</TD>
     <TD WIDTH="40%"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B> Pennsylvania  </B><BR> (State or Other Jurisdiction of Incorporation or Organization)</FONT></TD>
     <TD WIDTH="50%"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>23-2588479 </B><BR>(I.R.S. Employer Identification No.) </FONT> </TD></TR>
</TABLE>
<BR>


<P ALIGN="CENTER"> <FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B> 745 Atlantic Avenue,
Boston, Massachusetts 02111</B><BR>(Address of Principal Executive Offices including zip code)
 </FONT> </P>
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<P ALIGN="CENTER"> <FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>Iron Mountain Incorporated 2002 Stock Incentive Plan</B><BR>(Full Title of the Plan)
 </FONT> </P>



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     <TD WIDTH="50%"><FONT FACE="Times New Roman, Times, Serif" SIZE="2">           C. Richard Reese           <BR>
       Chairman of The Board of       <BR>
 Directors and Chief Executive Officer<BR>
      Iron Mountain Incorporated      <BR>
          745 Atlantic Avenue         <BR>
      Boston, Massachusetts 02111     <BR>
            (617) 535-4766
</FONT></TD>
     <TD WIDTH="50%"><FONT FACE="Times New Roman, Times, Serif" SIZE="2">          <B>COPY TO:</B><BR>
   William J. Curry, Esq.<BR>
  Sullivan &amp; Worcester LLP<BR>
   One Post Office Square<BR>
Boston, Massachusetts 02109<BR>
       (617) 338-2800
</FONT></TD></TR>
<TR VALIGN="TOP" ALIGN="CENTER">
     <TD COLSPAN="2">
<FONT FACE="Times New Roman, Times, Serif" SIZE="2">(Name, Address and Telephone Number of Agent For Service)</FONT></TD></TR>
</TABLE>






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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If,
as a result of stock splits, stock dividends or similar transactions, the number of
securities purported to be registered on this registration statement changes, the
provisions of Rule 416 under the Securities Act of 1933, as amended, shall apply to this
registration statement. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
prospectus meeting the requirements of Section 10(a) of the Securities Act of 1933, as
amended, which is being provided to participants in the Iron Mountain Incorporated 2002
Stock Incentive Plan in conjunction with this registration statement also relates to the
shares registered under the Registration Statement on Form S-8 dated May 24, 2002 (File
No. 333-89008) of Iron Mountain Incorporated. </FONT></P>

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<A NAME=A001></A>
<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>CALCULATION OF
REGISTRATION FEE </FONT></H1>






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<TR VALIGN="BOTTOM" ALIGN="RIGHT">
     <TH ALIGN="LEFT"><FONT FACE="Times New Roman, Times, Serif" SIZE=1>Title of Each Class of<BR>
Securities to be Registered</FONT><HR WIDTH=97% SIZE=1 NOSHADE></TH>
     <TH><FONT FACE="Times New Roman, Times, Serif" SIZE=1>Amount to be<BR>
Registered</FONT><HR WIDTH=85% SIZE=1 NOSHADE></TH>
     <TH><FONT FACE="Times New Roman, Times, Serif" SIZE=1>Proposed Maximum<BR>
Offering Price Per<BR>
Share<SUP>(1)</SUP></FONT><HR WIDTH=85% SIZE=1 NOSHADE></TH>
     <TH><FONT FACE="Times New Roman, Times, Serif" SIZE=1>Proposed Maximum<BR>
Aggregate Offering<BR>
Price<SUP>(1)</SUP></FONT><HR WIDTH=85% SIZE=1 NOSHADE></TH>
     <TH><FONT FACE="Times New Roman, Times, Serif" SIZE=1>Amount of<BR>
Registration Fee</FONT><HR WIDTH=85% SIZE=1 NOSHADE></TH></TR>
<TR VALIGN=Bottom>
     <TD WIDTH="32%" ALIGN="LEFT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Common Stock, $0.01 par value per share</FONT></TD>
     <TD WIDTH="17%" ALIGN="RIGHT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>2,000,000&nbsp;</FONT></TD>
     <TD WIDTH="17%" ALIGN="right"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>$30.97</FONT></TD>
     <TD WIDTH="17%" ALIGN="RIGHT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>$61,940,000</FONT></TD>
     <TD WIDTH="17%" ALIGN="RIGHT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>$7,847.80</FONT></TD></TR>
</TABLE>


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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(1)&nbsp;&nbsp;&nbsp;&nbsp;The
proposed maximum offering price per share and the proposed maximum aggregate
          offering price have been estimated solely for the purpose of calculating the
          amount of the registration fee in accordance with Rules 457(c) and 457(h) under
          the Securities Act of 1933 on the basis of the average of the high and low
          prices of the Common Stock on the New York Stock Exchange on August 13,
          2004.  </FONT></P>



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<A NAME=A002></A>
<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Registration of
Additional Securities &#150; Explanatory Note </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
are filing this registration statement to register an additional 2,000,000 shares of our
common stock for issuance under the Iron Mountain Incorporated 2002 Stock Incentive Plan
(the &#147;Plan&#148;). The increase in the number of shares authorized for issuance under
the Plan was approved by our stockholders at our 2004 annual meeting held on May 27, 2004.
On May 24, 2002 we filed a registration statement on Form S-8 (Reg. No. 333-89008)
covering 1,352,543 shares of our common stock authorized for issuance under the original
version of the Plan (the &#147;Prior Registration Statement&#148;) with the Securities and
Exchange Commission (the &#147;Commission&#148;).&nbsp;&nbsp;Pursuant to General
Instruction E to Form S-8, the contents of the Prior Registration Statement are
incorporated herein by reference, except for Item 3 and Item 8 of the Prior Registration
Statement, which is being updated by this registration statement. &nbsp; </FONT></P>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>PART II &#151;
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT </FONT></H1>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 3.&nbsp;&nbsp;Incorporation of
Documents by Reference. </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
following additional documents, which have been filed by the Company with the Commission,
are incorporated by reference in and made a part of this registration statement, as of
their respective dates: </FONT></P>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(a)  </FONT></TD>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>The
Company&#146;s Annual Report on Form 10-K for the fiscal year ended December
          31, 2003 filed on March 11, 2004;  </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(b)  </FONT></TD>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>The
Company&#146;s Quarterly Reports on Form 10-Q for the fiscal quarter ended
          March 31, 2004 and for the fiscal quarter ended June 30, 2004 filed on May 10,
          2004 and August 9, 2004, respectively;  </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(c)  </FONT></TD>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>The
Company&#146;s Current Reports on Form 8-K filed January 7, 2004, January           16,
2004 and May 27, 2004; and  </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(d)  </FONT></TD>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>The
description of the Company&#146;s common stock contained in the registration
          statement on Form 8-A dated May 27, 1997 (File No. 1-13045), including all
          amendments or reports filed for the purpose of updating such description.  </FONT></TD>
</TR>
</TABLE>
<BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All
documents subsequently filed by the Company pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Securities Exchange Act of 1934, as amended, prior to the filing of a
post-effective amendment which indicates that all securities offered have been sold or
which deregisters all securities then remaining unsold, shall be deemed to be incorporated
by reference in this registration statement and to be part hereof from the date of filing
of such documents. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Any
statement contained in a document incorporated or deemed to be incorporated by reference
herein shall be deemed to be modified or superseded for purposes of this registration
statement to the extent that a statement herein, or in any subsequently filed document
which also is or is deemed to be incorporated by reference, modifies or supersedes such
statement. Any statement so modified or superseded shall not be deemed, except as so
modified or superseded, to constitute a part of this registration statement. </FONT></P>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 8.&nbsp;&nbsp;Exhibits. </FONT></H1>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>EXHIBIT INDEX </FONT></H1>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>EXHIBIT NO. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DESCRIPTION </FONT></H1>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>5.1  </FONT></TD>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Opinion
of Sullivan &amp; Worcester LLP.*</FONT></TD>
</TR>
</TABLE>
<BR>
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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>5.2  </FONT></TD>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Opinion
of Ballard Spahr Andrews &amp; Ingersoll, LLP.* </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>23.1  </FONT></TD>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of Sullivan &amp; Worcester LLP (contained in the opinion of Sullivan &amp;Worcester LLP
filed herewith as Exhibit 5.1).  </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>23.2  </FONT></TD>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of Ballard Spahr Andrews &amp; Ingersoll, LLP (contained in the opinion of Ballard Spahr
Andrews &amp; Ingersoll, LLP filed herewith as Exhibit 5.2).  </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>23.3  </FONT></TD>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of Independent Registered Public Accounting Firm - Deloitte &amp; Touche LLP (Iron Mountain
                  Incorporated).* </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>23.4  </FONT></TD>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of RSM Robson Rhodes LLP (Iron Mountain Europe Limited).* </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>         24  </FONT></TD>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Powers
of Attorney (included in the signature page to this registration statement). </FONT></TD>
</TR>
</TABLE>
<BR>

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<P>_________________ </P>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>*  </FONT></TD>
<TD><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp; </FONT></TD>
<TD WIDTH=95%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>filed
herewith </FONT></TD>
</TR>
</TABLE>
<BR>




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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SIGNATURES </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to the requirements of the Securities Act of 1933, the Company certifies that it has
reasonable grounds to believe that it meets all of the requirements for filing on Form S-8
and has duly caused this registration statement on Form S-8 to be signed on its behalf by
the undersigned, thereunto duly authorized, in the City of Boston, Commonwealth of
Massachusetts, on the 18<SUP>th</SUP> day of August, 2004. </FONT></P>


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     <TD WIDTH="50%"><FONT FACE="Times New Roman, Times, Serif" SIZE="2">&nbsp;</FONT></TD>
     <TD WIDTH="50%"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>IRON MOUNTAIN INCORPORATED</B><BR>
<BR>
<BR>
By: &nbsp;/s/ &nbsp;C. Richard Reese<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Name:  C. Richard Reese<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Title: Chairman of the Board,<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Chief Executive Officer and President
</FONT></TD></TR>
</TABLE>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to the requirements of the Securities Act of 1933, this registration statement on Form S-8
has been signed below by the following persons in the capacities and on the dates
indicated. The undersigned officers and directors of the Company hereby severally
constitute and appoint C. Richard Reese and John F. Kenny, Jr., and each of them acting
singly, our true and lawful attorneys to sign for us and in our names in the capacities
indicated below any and all amendments or supplements, whether pre-effective or
post-effective, to this registration statement on Form S-8 and to file the same, with
exhibits thereto and other documents in connection therewith, with the Commission,
granting unto each of said attorneys, acting singly, full power and authority to do and
perform each and every act and thing requisite or necessary to be done in and about the
premises, as fully to all intents and purposes as he or she might or could do in person,
hereby ratifying and confirming our signatures to said amendments to this registration
statement signed by our said attorneys and all else that said attorneys may lawfully do
and cause to be done by virtue hereof. </FONT></P>





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<TR VALIGN="BOTTOM" ALIGN="LEFT">
     <TH><FONT Face="Times New Roman, Times, Serif" SIZE="2"><U>Signature</U></FONT></TH>
     <TH><FONT Face="Times New Roman, Times, Serif" SIZE="2"><U>Title</U></FONT></TH>
     <TH><FONT Face="Times New Roman, Times, Serif" SIZE="2"><U>Date</U></FONT></TH></TR>
<TR VALIGN="TOP">
     <TD WIDTH="34%"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR><U>/s/ &nbsp;C. Richard Reese</U><BR>
C. Richard Reese
</FONT></TD>
     <TD WIDTH="33%"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>Chairman of the Board, Chief <BR>Executive
Officer and President
</FONT></TD>
     <TD WIDTH="33%"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>August 18, 2004
</FONT></TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR><U>/s/ &nbsp;John F. Kenny, Jr.</U><BR>
John F. Kenny, Jr.
</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>Executive Vice President, Chief <BR>Financial
Officer and Director
</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>August 18, 2004
</FONT></TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR><U>/s/ &nbsp;Clarke H. Bailey</U><BR>
Clarke H. Bailey
</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>Director</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>August 18, 2004</FONT></TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR><U>/s/ &nbsp;Constantin R. Boden</U><BR>
Constantin R. Boden
</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>Director</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>August 18, 2004</FONT></TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR><U>/s/ &nbsp;Kent P. Dauten</U><BR>
Kent P. Dauten
</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>Director</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>August 18, 2004</FONT></TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR><U>/s/ &nbsp;B. Thomas Golisano</U><BR>
B. Thomas Golisano
</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>Director</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>August 18, 2004</FONT></TD></TR>

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<TR VALIGN="TOP">
     <TD WIDTH="34%"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR><U>/s/ &nbsp;Arthur D. Little</U><BR>
Arthur D. Little
</FONT></TD>
     <TD WIDTH="33%"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>Director</FONT></TD>
     <TD WIDTH="33%"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>August 18, 2004</FONT></TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR><U>/s/ &nbsp;Vincent J. Ryan</U><BR>
Vincent J. Ryan
</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>Director</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>August 18, 2004</FONT></TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR><U>/s/ &nbsp;Jean A. Bua</U><BR>
Jean A. Bua
</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>Vice President and Corporate <BR>Controller
(Chief Accounting <BR>Officer)
</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR>August 18, 2004</FONT></TD></TR>
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{"company-data": {"conformed-name": "IRON MOUNTAIN INC/PA", "cik": "0001020569", "assigned-sic": "4220", "irs-number": "232588479", "state-of-incorporation": "PA", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-118322", "film-number": "04983405"}, "business-address": {"street1": "745 ATLANTIC AVENUE", "city": "BOSTON", "state": "MA", "zip": "02111", "phone": "6175354766"}, "mail-address": {"street1": "745 ATLANTIC AVENUE", "city": "BOSTON", "state": "MA", "zip": "02111"}, "former-company": {"former-conformed-name": "PIERCE LEAHY CORP", "date-changed": "19960807"}}
S8
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM S-8
REGISTRATION STATEMENT UNDER THE
SECURITIES ACT OF 1933
IRON MOUNTAIN INCORPORATED
(Exact name of registrant as
specified in charter)
Pennsylvania
(State or Other Jurisdiction of Incorporation or Organization)
23-2588479
(I.R.S. Employer Identification No.)
745 Atlantic Avenue,
Boston, Massachusetts 02111
(Address of Principal Executive Offices including zip code)
Iron Mountain Incorporated 2002 Stock Incentive Plan
(Full Title of the Plan)
C. Richard Reese
Chairman of The Board of
Directors and Chief Executive Officer
Iron Mountain Incorporated
745 Atlantic Avenue
Boston, Massachusetts 02111
(617) 535-4766
COPY TO:
William J. Curry, Esq.
Sullivan & Worcester LLP
One Post Office Square
Boston, Massachusetts 02109
(617) 338-2800
(Name, Address and Telephone Number of Agent For Service)
If,
as a result of stock splits, stock dividends or similar transactions, the number of
securities purported to be registered on this registration statement changes, the
provisions of Rule 416 under the Securities Act of 1933, as amended, shall apply to this
registration statement.
The
prospectus meeting the requirements of Section 10(a) of the Securities Act of 1933, as
amended, which is being provided to participants in the Iron Mountain Incorporated 2002
Stock Incentive Plan in conjunction with this registration statement also relates to the
shares registered under the Registration Statement on Form S-8 dated May 24, 2002 (File
No. 333-89008) of Iron Mountain Incorporated.
CALCULATION OF
REGISTRATION FEE
Title of Each Class of
Securities to be Registered
Amount to be
Registered
Proposed Maximum
Offering Price Per
Share
(1)
Proposed Maximum
Aggregate Offering
Price
(1)
Amount of
Registration Fee
Common Stock, $0.01 par value per share
2,000,000
$30.97
$61,940,000
$7,847.80
(1)    The
proposed maximum offering price per share and the proposed maximum aggregate
          offering price have been estimated solely for the purpose of calculating the
          amount of the registration fee in accordance with Rules 457(c) and 457(h) under
          the Securities Act of 1933 on the basis of the average of the high and low
          prices of the Common Stock on the New York Stock Exchange on August 13,
          2004.
Registration of
Additional Securities – Explanatory Note
We
are filing this registration statement to register an additional 2,000,000 shares of our
common stock for issuance under the Iron Mountain Incorporated 2002 Stock Incentive Plan
(the "Plan"). The increase in the number of shares authorized for issuance under
the Plan was approved by our stockholders at our 2004 annual meeting held on May 27, 2004.
On May 24, 2002 we filed a registration statement on Form S-8 (Reg. No. 333-89008)
covering 1,352,543 shares of our common stock authorized for issuance under the original
version of the Plan (the "Prior Registration Statement") with the Securities and
Exchange Commission (the "Commission").  Pursuant to General
Instruction E to Form S-8, the contents of the Prior Registration Statement are
incorporated herein by reference, except for Item 3 and Item 8 of the Prior Registration
Statement, which is being updated by this registration statement.
PART II —
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3.  Incorporation of
Documents by Reference.
The
following additional documents, which have been filed by the Company with the Commission,
are incorporated by reference in and made a part of this registration statement, as of
their respective dates:
(a)
The
Company's Annual Report on Form 10-K for the fiscal year ended December
          31, 2003 filed on March 11, 2004;
(b)
The
Company's Quarterly Reports on Form 10-Q for the fiscal quarter ended
          March 31, 2004 and for the fiscal quarter ended June 30, 2004 filed on May 10,
          2004 and August 9, 2004, respectively;
(c)
The
Company's Current Reports on Form 8-K filed January 7, 2004, January           16,
2004 and May 27, 2004; and
(d)
The
description of the Company's common stock contained in the registration
          statement on Form 8-A dated May 27, 1997 (File No. 1-13045), including all
          amendments or reports filed for the purpose of updating such description.
All
documents subsequently filed by the Company pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Securities Exchange Act of 1934, as amended, prior to the filing of a
post-effective amendment which indicates that all securities offered have been sold or
which deregisters all securities then remaining unsold, shall be deemed to be incorporated
by reference in this registration statement and to be part hereof from the date of filing
of such documents.
Any
statement contained in a document incorporated or deemed to be incorporated by reference
herein shall be deemed to be modified or superseded for purposes of this registration
statement to the extent that a statement herein, or in any subsequently filed document
which also is or is deemed to be incorporated by reference, modifies or supersedes such
statement. Any statement so modified or superseded shall not be deemed, except as so
modified or superseded, to constitute a part of this registration statement.
Item 8.  Exhibits.
EXHIBIT INDEX
EXHIBIT NO.          DESCRIPTION
5.1
Opinion
of Sullivan & Worcester LLP.*
5.2
Opinion
of Ballard Spahr Andrews & Ingersoll, LLP.*
23.1
Consent
of Sullivan & Worcester LLP (contained in the opinion of Sullivan &Worcester LLP
filed herewith as Exhibit 5.1).
23.2
Consent
of Ballard Spahr Andrews & Ingersoll, LLP (contained in the opinion of Ballard Spahr
Andrews & Ingersoll, LLP filed herewith as Exhibit 5.2).
23.3
Consent
of Independent Registered Public Accounting Firm - Deloitte & Touche LLP (Iron Mountain
                  Incorporated).*
23.4
Consent
of RSM Robson Rhodes LLP (Iron Mountain Europe Limited).*
24
Powers
of Attorney (included in the signature page to this registration statement).
_________________
*
filed
herewith
SIGNATURES
Pursuant
to the requirements of the Securities Act of 1933, the Company certifies that it has
reasonable grounds to believe that it meets all of the requirements for filing on Form S-8
and has duly caused this registration statement on Form S-8 to be signed on its behalf by
the undersigned, thereunto duly authorized, in the City of Boston, Commonwealth of
Massachusetts, on the 18
th
day of August, 2004.
IRON MOUNTAIN INCORPORATED
By:  /s/  C. Richard Reese
Name:  C. Richard Reese
Title: Chairman of the Board,
Chief Executive Officer and President
Pursuant
to the requirements of the Securities Act of 1933, this registration statement on Form S-8
has been signed below by the following persons in the capacities and on the dates
indicated. The undersigned officers and directors of the Company hereby severally
constitute and appoint C. Richard Reese and John F. Kenny, Jr., and each of them acting
singly, our true and lawful attorneys to sign for us and in our names in the capacities
indicated below any and all amendments or supplements, whether pre-effective or
post-effective, to this registration statement on Form S-8 and to file the same, with
exhibits thereto and other documents in connection therewith, with the Commission,
granting unto each of said attorneys, acting singly, full power and authority to do and
perform each and every act and thing requisite or necessary to be done in and about the
premises, as fully to all intents and purposes as he or she might or could do in person,
hereby ratifying and confirming our signatures to said amendments to this registration
statement signed by our said attorneys and all else that said attorneys may lawfully do
and cause to be done by virtue hereof.
Signature
Title
Date
/s/  C. Richard Reese
C. Richard Reese
Chairman of the Board, Chief
Executive
Officer and President
August 18, 2004
/s/  John F. Kenny, Jr.
John F. Kenny, Jr.
Executive Vice President, Chief
Financial
Officer and Director
August 18, 2004
/s/  Clarke H. Bailey
Clarke H. Bailey
Director
August 18, 2004
/s/  Constantin R. Boden
Constantin R. Boden
Director
August 18, 2004
/s/  Kent P. Dauten
Kent P. Dauten
Director
August 18, 2004
/s/  B. Thomas Golisano
B. Thomas Golisano
Director
August 18, 2004
/s/  Arthur D. Little
Arthur D. Little
Director
August 18, 2004
/s/  Vincent J. Ryan
Vincent J. Ryan
Director
August 18, 2004
/s/  Jean A. Bua
Jean A. Bua
Vice President and Corporate
Controller
(Chief Accounting
Officer)
August 18, 2004