Analysis of information sources in references of the Wikipedia article "Raven Rock Mountain Complex" in English language version.
The Army maintained that the Air Force command and control network was insufficiently reliable to permit proper control of Army weapons [e.g., Nike missiles] in a crisis, and as a result the two services were, from a practical standpoint, poles apart on the issue of single control of weapons.
Quoting Garrett Graff, Raven Rock: The Inside Story of the US Government's Secret Plan to Save Itself -- While the Rest of Us Die.
...Hardened Emergency Command Post and Relocation site for the Executive Branch of the Government at Mount Weather(separate webpages for each report page)
Plans of the government to begin work Monday at the "Beard Lot"... were revealed today [Saturday] by Attorney Charles W. Kalp, assistant U.S. attorney at Lewisburg. The "Beard Lot," a 1,500-foot-high, mile-long hill located at Fountaindale and extending east and south along the Waynesboro-Emmitsburg road, will be used, it is believed, as part of an underground world-wide communications center ... government had been granted ..."immediate possession" orders on four of 26 properties previously listed for condemnation in a [federal] petition ... A petition ... originally filed for the entire 1,100-acre area surrounding and including the "Beard Lot."... properties condemned were those of the heirs of Samuele Warren containing 47½ acres, the Hoy Martin property of 103 acres [E of the Fountaindale-Sabillasville road], the three-acre property of Harold M. and Sylvia Caron and the 87½-acre property of Robert and Vialo Kipe. ... super underground communications center [when] the "Beard Lot" is to be annexed, according to the government's original petition ... the Carsons had been told that the government wanted their land "for an entrance. ... the former [turnpike] Route 16, now returned to Hamiltonban township with the opening of the Sunshine Trail, would be used for regular vehicular traffic while the other [Route 16] highway is closed."
'Pentagon No. 2'...'Shadow Pentagon'...with a finished chamber ... 2,100 feet long [and] four suites for top officials [and space for] a staff of 1,200..in the underground center in peacetime and 5,000 in wartime.
The Army maintained that the Air Force command and control network was insufficiently reliable to permit proper control of Army weapons [e.g., Nike missiles] in a crisis, and as a result the two services were, from a practical standpoint, poles apart on the issue of single control of weapons.
Half mile long tunnels were drilled into the center of the mountain and were curved gently to reduce effects of a blast. ... near Sharpsburg, A great field of giant poles 150 feet high has sprung up 10 miles south of this Western Maryland community a 1953 Washington Post report from Hagerstown said. That project along with a similar one near Greencastle Pa was built as a communication system for The Rock. Known as Site B and Site A respectively both were abandoned in the 1960s when communication improvement made the facilities obsolete.