CMAFS: Beyond the Blast Doors
CHEYENNE MOUNTAIN AIR FORCE STATION, Colo. - The Cheyenne Mountain Complex is a military installation and nuclear bunker located in Colorado Springs, Colorado at the Cheyenne Mountain Air Force Station. The mountain itself is about 9,500 feet tall, and the tunnel entrance sits about 2,000 feet from the top. (Photo by Staff Sgt. Andrew Lee )