Groom Lake is the official name for a USAF installation that is a detachment of what base?
Groom Lake (disambiguation) Groom Lake is the official name of the USAF installation commonly referred to as Area 51.
Cheyenne Mountain Complex The Cheyenne Mountain Complex is a military installation and nuclear bunker located in Colorado Springs, Colorado at the Cheyenne Mountain Air Force Station, which hosts the activities of several tenant units. Also located in Colorado Springs is Peterson Air Force Base, where the North American Aerospace Defense Command (NORAD) and United States Northern Command (USNORTHCOM) headquarters are located.