Raven Rock Mountain photograph

Raven Rock Mountain

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Opened 1951
Owners Federal government of the United States
Built1951–1953
Date of Reg.
Date of Upd.
ID2260912
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About Raven Rock Mountain


The Raven Rock Mountain Complex, 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".

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