The National Park Service's history of the Greenbrier bunker: the government renewed its lease in 1957 to build it, finished it in 1962 for all 535 members of Congress, and gave it up in 1995 after it was exposed in 1992. The NPS gives its depth as 720 feet.
The National Park Service's history of the Greenbrier bunker: the government renewed its lease in 1957 to build it, finished it in 1962 for all 535 members of Congress, and gave it up in 1995 after it was exposed in 1992. The NPS gives its depth as 720 feet. Sources disagree sharply on the depth; the Senate oral history of Richard Arenberg says 20 feet.