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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT
                       PURSUANT TO SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934

         DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): JULY 28, 2005

                           IRON MOUNTAIN INCORPORATED
             (Exact name of registrant as specified in its charter)

                                    DELAWARE
                 (State or other jurisdiction of incorporation)

                 1-13045                             23-2588479
         (Commission File Number)         (IRS Employer Identification No.)

                               745 Atlantic Avenue
                           Boston, Massachusetts 02111
          (Address of principal executive offices, including zip code)

                                 (617) 535-4766
              (Registrant's telephone number, including area code)

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ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

On July 28, 2005, the Company issued a press release setting forth the Company's
results of operations and financial condition for its second fiscal quarter
ended June 30, 2005. A copy of the Company's press release is attached hereto as
Exhibit 99.1 and is incorporated herein by reference.

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

(c)    Exhibits
99.1   Press Release of Iron Mountain Incorporated dated July 28, 2005.



                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                              IRON MOUNTAIN INCORPORATED
                                              (Registrant)

                                              By:     /s/ Jean A. Bua
                                                      --------------------------
                                              Name:   Jean A. Bua
                                              Title:  Senior Vice President and
                                                      Corporate Controller

Date: July 28, 2005