Groom Lake is the official name for a USAF installation that is a detachment of what base?
Area 51 The United States Air Force facility commonly known as Area 51 is a highly classified remote detachment of Edwards Air Force Base, within the Nevada Test and Training Range. According to the Central Intelligence Agency (CIA), the correct names for the facility are Homey Airport (ICAO: KXTA) and Groom Lake, though the name "Area 51" was used in a CIA document from the Vietnam War. The facility has also been referred to as "Dreamland" and "Paradise Ranch", among other nicknames. The special use airspace around the field is referred to as Restricted Area 4808 North (R-4808N).
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.