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 31, 2008

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

                 (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)

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2.):

[_]   Written communications pursuant to Rule 425 under the Securities Act (17
      CFR 230.425)

[_]   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR

[_]   Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))

[_]   Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (7 CFR 240.13e-4(c))

Item 2.02.  Results of Operations and Financial Condition.

On July 31, 2008, the Company issued a press release setting forth the Company's
results of operations and financial condition for its fiscal quarter ended June
30, 2008 and its financial outlook for 2008. A copy of the Company's press
release is furnished herewith as Exhibit 99.1 and is incorporated herein by

Item 9.01.  Financial Statements and Exhibits.

(d)      Exhibits

99.1     Press Release of Iron Mountain Incorporated dated July 31, 2008
         (furnished herewith).


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

                                         By:    /s/  Brian McKeon

                                         Name:  Brian McKeon
                                         Title: EVP and Chief Financial Officer

Date: July 31, 2008