Exhibit 99.1


FOR IMMEDIATE RELEASE:

Contact:   John F. Kenny, Jr.
           Executive Vice President and
           Chief Financial Officer
           (617) 535-4799


    IRON MOUNTAIN INCORPORATED ANNOUNCES PROPOSED $200 MILLION DEBT OFFERING


BOSTON, MA--March 23, 2001--Iron Mountain Incorporated (NYSE: IRM), the leader
in records and information management services, announced today a proposed
public offering of $200 million in aggregate principal amount of Senior
Subordinated Notes due 2013. The Company intends to use the net proceeds from
the offering to fund its offer to purchase and consent solicitation relating to
its outstanding 11-1/8% Senior Subordinated Notes due 2006, which was separately
announced today, to repay outstanding borrowings under its revolving credit
facility and for general corporate purposes, including future acquisitions. The
exact terms and timing of the offering will depend upon market conditions and
other factors.

The offering will be made only by means of a prospectus. This announcement shall
not constitute an offer to sell or the solicitation of any offer to buy
securities, nor shall there be any sales of these securities in any state in
which such an offer, solicitation or sale would be unlawful prior to
registration or qualification under the securities laws of any such state.

Iron Mountain Incorporated is the global leader in records and information
management services. Iron Mountain currently provides services to over 125,000
customer accounts, including more than half of the Fortune 500, in 77 markets in
the United States and 40 markets outside of the United States. The Company
operates over 625 records management facilities in North America, Europe and
Latin America.


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