Alternate National Military Command Center

The Raven Rock Mountain Complex (RRMC), also known as Site R, is a U.S. military installation with an underground nuclear bunker near Blue Ridge Summit, Pennsylvania, at Raven Rock Mountain that has been called an "underground Pentagon". The bunker has emergency operations centers for the United States Army, Navy, Air Force and Marine Corps. Along with Mount Weather Emergency Operations Center in Virginia and the Cheyenne Mountain Complex in Colorado, it formed the core bunker complexes for the US continuity of government plan during the Cold War to survive a nuclear attack.

Description

The installation's largest tenant unit is the Defense Threat Reduction Agency, and RRMC communications are the responsibility of the 114th Signal Battalion. The facility has 38 communications systems, and the Defense Information Systems Agency provides computer services at the complex.

History

Raven Rock Mountain is adjacent to Jacks Mountain on the north while Miney Branch flows west-to-east between them in the Potomac River Watershed. The 1820 Waynesboro-Emmitsburg Turnpike with toll station for the 1787 crossroad was constructed between the mountains, where the Fight at Monterey Gap was conducted after the 1863 Battle of Gettysburg ( Stuart's artillery at Raven Rock Gap shelled Federal troops.) In 1870, copper ore was discovered to the north, and the nearby Fountain Dale Springs House was established in 1874. The scenic area's mountain recreation facilities to the west included the 1877 Pen Mar Park, the 1878 High Rock Tower, the 1885 Monterey Country Club, and several resorts (e.g., Blue Mountain House, Buena Vista Springs Hotels, & Washington Cliff House). The 1889 Jacks Mountain Tunnel on the Western Extension (Baltimore and Harrisburg Railway) was completed near Raven Rock Mountain, and nearby stations were at Blue Ridge Summit and Charmian. The Army's 1942 Camp Ritchie was built southwest of the resorts, and a local road was built eastward from Blue Ridge Summit and intersected the north-south Fountaindale- Sabillasville Road (the intersection now provides access to the RRMC main gate.)

Planning for a protected Cold War facility near Washington, D.C. began in 1948 for relocation of military National Command Authorities and the Joint Communications Service.

Underground communications center

The planned deep underground communications center was identified in the original 1950 federal petition to seize the Beard Lot, a 1,500-foot-high, mile-long hill located at Fountaindale and extending east and south along the Waynesboro-Emmitsburg road, The "Declaration of Taking" for ''United States of America v. 1,100 Acres of Land'' was filed at the Adams County courthouse on 23 January 1951, and made the government the official owner of the 280-acre tract seized from four properties (17 total properties had been requested by 15 February—some only for temporary use). South of and above the Carson service station on the Sunshine trail, bulldozers began work on 19 January 1951; by 3 February a roadway to the site had been leveled behind a farmhouse; and by 24 February underground work had commenced (40 men working "normally" on that date were only performing above-ground construction). By 26 May the Army had named the landform Raven Rock Mountain ("Raven Rock" is a pillar landform to the north along the mountain range) and listed its elevation as 1,527 feet.

By 20 October 1951, there had been two deaths: one, Roland P. Kelly, of PenMar MD due to premature dynamite detonation in the Beard Lot tunnel, and a power shovel operator from Phillipsburg named Leroy Fleagle who suffered crushing injuries. The S. A. Healy Company was working on the alternate Pentagon in November 1951, when the government announced a defense appropriations cutback that would affect the project. On 16 January 1952, the government indicated that when completed, the bunker would have a standby group of approximately 100 personnel. Because of construction damage to the Sunshine Trail, the US said it would rebuild the trail in any fashion the state desired.

By 29 March 1952, more than 100 workers were striking from building additional Raven Rock housing at Camp Ritchie, which was to be a supplemental installation for the underground Pentagon at Fountaindale. No work was going on in the Raven Rock (Beard Lot) tunnel at that time. Local travelers having to bypass on the serpentine on the slope between Monterey and Fountaindale grew frustrated during the delay (the incomplete tunnel was derogatorily dubbed "Harry's Hole," for President Truman.) By 7 April 1952, United Telephone Company rights of way had been secured for four tracts, including one in Cumberland Township. Easements for three additional private tracts were filed by the government in December 1953 (a 1954 lawsuit against the U.S. by Alfred Holt was seeking $2,000 an acre for his 140-acre woodlot atop the Beard Lot fterturning down an offer of $2,800 from the government.)

A 1952 Army history disclosed Raven Rock information. Three underground buildings were completed in 1953, the year a guard shelter burned on the installation. By April 1954, "Little Pentagon" development had cost $35,000,000.

Automatic activation

After the 1954 Air Defense Command blockhouse was built at Ent Air Force Base, where the joint 1955 Continental Air Defense Command was activated, in August 1955 OSD approved the automatic activation of Raven Rock's Alternate Joint Communication Center on declaration of air defense warning or notice of surprise attack ( SAC similarly completed a bunker in 1955). The AJCC was equipped with command and control (C²) hardware by the end of 1955.

1956 War Room Annex

In July 1956 at Raven Rock, a joint War Room Annex was established and was operated by the Air Force, and Raven Rock's readiness was broadened in April 1957 oractivation prior to emergency if JCS thought it necessary. By 1959, the services as well as JCS regarded Raven Rock as their primary emergency deployment center. For the Air Force, it served as Headquarters USAF Advanced, capable of receiving the Chief of Staff and key officers. After President Dwight D. Eisenhower expressed concern about nuclear command and control, a 1958 reorganization in National Command Authority relations with the joint commands was implemented. On 1 July 1958 Raven Rock's USAF facility, ADCC (Blue Ridge Summit), became one of the 33 NORAD Alert Network Number 1 stations (but with receive-only capability as at TAC Headquarters,