The United States Air Force facility commonly known as Area 51 is a remote detachment of Edwards Air Force Base, within theNevada 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. Other names used for the facility include Dreamland, and nicknames Paradise Ranch, Home Base and Watertown. The special use airspace around the field is referred to as Restricted Area 4808 North (R-4808N).