Iron Mountain Incorporated Hosts 7th Annual Investor Day in New York City.

Presentations to be Available on the Company's Website

November 15, 2004

Boston, MA - Iron Mountain Incorporated (NYSE: IRM - News), the global leader in records and information management services, will hold its 7th Annual Investor Day on Thursday, November 18th at The Waldorf Astoria Hotel in New York City beginning at 8:00 AM. The Company's annual gathering of management, investors, and Wall Street analysts is expected to draw record attendance.

In order to further enhance the overall quality of its investor communications, the Company will make a simulcast of its Investor Day presentations available on its website (http://www.ironmountain.com). The presentations will begin at 8:30 AM on Thursday, November 18, 2004. Please check the website for details regarding the timing of the simulcast.

About Iron Mountain
Iron Mountain Incorporated (NYSE:IRM) helps organizations around the world reduce the costs and risks associated with information protection and storage. The Company offers comprehensive records management and data protection solutions, along with the expertise and experience to address complex information challenges such as rising storage costs, litigation, regulatory compliance and disaster recovery. Founded in 1951, Iron Mountain is a trusted partner to more than 90,000 corporate clients throughout North America, Europe, Latin America and the Pacific Rim. For more information, visit the Company's Web site at www.ironmountain.com

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