500
A military base, and a remote detachment of Edwards Air Force Base. It is located in the southern portion of Nevada in the western United States, 83 miles north-northwest of Las Vegas. Situated at its center, on the southern shore of Groom Lake, is a large military airfield. The base's primary purpose is undetermined, however, based on historical evidence, it appears to support development and testing of experimental aircraft and weapons systems.
Area 51