Raven Rock Mountain Complex

The Raven Rock Mountain Complex (RRMC) is a United States government facility on Raven Rock, a mountain in the U.S. state of Pennsylvania. It is located in Liberty Township, Adams County, about 14 km (8.7 miles) east of Waynesboro, Pennsylvania, and 10 km (6.2 miles) north-northeast of Camp David, Maryland. It is also called the Raven Rock Military Complex, or simply Site R. Other designations and nicknames include "The Rock", NMCC-R (National Military Command Center Reservation), ANMCC (Alternate National Military Command Center), AJCC (Alternate Joint Communications Center), "Backup Pentagon", or "Site RT"; the latter refers to the vast array of communication towers and equipment atop the mountain. Colloquially, the facility is known as an "underground Pentagon"."Life on the Newsfronts". Life. March 1, 1954. p. 40.

The facility runs more than 38 communications systems for its users. The Defense Information Systems Agency computer operations staff provides computer services to the National Command Authority, the Joint Chiefs of Staff, the Office of the Secretary of Defense and other United States Department of Defense agencies.

Its largest tenant is the Defense Threat Reduction Agency. RRMC also houses the emergency operations centers for the Army, Navy and Air Force.

Disclosure of information

Many of the facility's activities are classified, and...
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