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.
Watford City Air Force Station Watford City Air Force Station is a United States Air Force installation located about 40 km southwest of Watford City, North Dakota. It is the site of an ARSR-4 radar system, which provides air traffic surveillance along the US-Canada border, as well as limited weather radar data.