The Raven Rock Mountain Complex is known by many names:
Site R
AJCC: Alternate Joint Communications Center
ANMCC: Alternate National Military Command Center
NMCC-R: National Military Command Center - Raven Rock
USAG-RR: U.S. Army Garrison - Raven Rock
the Underground Pentagon
the Little Pentagon
the Backup Pentagon
the Rock
and for old-timers: Harry's Hole.
HISTORY
In 1950, President
Harry S. Truman approved the construction of a deep underground facility that could be used as a
relocation site for the Pentagon in times of national emergency. One half million cubic yards of superhard greenstone granite
rock was secretly blasted out and hauled away in ten months. Five separate 3-story buildings were built deep inside the Raven Rock mountain
located on the Pennsylvania-Maryland border. The buildings look like ordinary office buildings set inside a hollowed-out
cavern deep inside the mountain. The mountain complex has roads and parking areas big enough to accommodate trucks and buses.
The "footprint" is nearly 260,000 square feet with total usable floor space of 700,000 square feet.
The first three buildings (A, B, and C) were built between 1950-1953. Buildings D and E were built between 1963 and 1965. Buildings A, B, and C provided living quarters,
administrative space and operational facilities that the armed services planned to use as primary emergency centers.
The ANMCC was moved from Building C to the new Building D in 1964. In a crisis, Site R
could operate for at least 30 days in a "buttoned-up" position. It was designed to accommodate 3,000 persons in an
emergency. The Presidential quarters were located in Building D above
the computer room. President Nixon had it decorated pink for his daughter.
The cooling tower and reservoir were added between
1989-1992. The Site R Security Building was built in 1994. The RRMC Fire Station was built in 2005. The underground cavern
was expanded in the last few years to accommodate the installation of larger fuel oil storage tanks and the complete replacement
of the West Power Plant to support the future projected facility loads.
The primary mission of the Raven Rock Mountain
Complex is to support the Continuity of Operations Plan (COOP) for
the Office of the Secretary of Defense (OSD) and the Joint Staff (JS).
In its current configuration, Site-R is capable of serving as a backup to the Pentagon
with state-of-the-art technology, worldwide secure network connections, multiple
Emergency Operations Centers, and emergency relocation space for
agencies within the Department of Defense and other federal agencies.
Site R is completely self-sufficient with two power plants to generate electricity;
multiple underground water reservoirs; and a sophisticated ventilation system.
In addition to the basic
life support requirements of power, water, and air, the underground metropolis also contains a medical and dental clinic, fire department, post office,
dining facility, snack bar, dormitories, chapel, barbershop, fitness center, bowling alley, and even a Starbucks. View the map of Site R.
RAVEN ROCK MOUNTAIN COMPLEX PHOTO GALLERY
Construction of the Raven Rock Mountain Complex
1952 photo of the Site R entrance
Tunnel roads can accommodate large trucks
The buildings stand separate from the granite cavern walls
Each building sits independently on large springs
Huge bolts are drilled into exposed rock throughout the facility for support
Tunnel walls are continuously inspected and repaired
This is a parody website with fictional content and fake photos. No person,
department, or agency of the U.S. Government approved, endorsed, or authorized
this site. This website is not associated in any way with the Raven Rock
Mountain Complex (if there even is such a place ...) and unfortunately, no public tours are
available.