The selectable maps and aerial photographs on this page present facts related to Area 51. Area 51, also officially known as Groom Lake or Homey Airport is a remote detachment of Edwards Air Force Base. According to the Central Intelligence Agency (CIA), the correct names for the Area 51 facility are the Nevada Test and Training Range and Groom Lake, though the name Area 51 has been used in official CIA documentation. Other names used for the facility include Dreamland, Paradise Ranch, Home Base, Watertown Strip, and most recently Homey Airport. The area around the field is referred to as (R-4808N).
It is located in the southern portion of Nevada in the western United States, 83 miles (133 km) north-northwest of Las Vegas. Situated at its center, on the southern shore of Groom Lake, is a large military airfield. The base's current primary purpose is officially undetermined; however, based on historical evidence, it most likely supports development and testing of experimental aircraft and weapons systems. The intense secrecy surrounding the base has made it the frequent subject of conspiracy theories and a central component to unidentified flying object (UFO) folklore. Although the base has never been declared a secret base, all research and occurings in Area 51 are Top Secret/Sensitive Compartmented Information (TS/SCI). In July 2013, following a FOIA request filed in 2005, the Central Intelligence Agency publicly acknowledged the existence of the base for the first time by declassifying documents detailing the history and purpose of Area 51.
The original rectangular base of is now part of the so-called "Groom box", a rectangular area measuring, of restricted airspace. The area is connected to the internal Nevada Test Site (NTS) road network, with paved roads leading south to Mercury and west to Yucca Flat. Leading northeast from the lake, the wide and well-maintained Groom Lake Road runs through a pass in the Jumbled Hills. The road formerly led to mines in the Groom basin, but has been improved since their closure. Its winding course runs past a security checkpoint, but the restricted area around the base extends further east. After leaving the restricted area, Groom Lake Road descends eastward to the floor of the Tikaboo Valley, passing the dirt-road entrances to several small ranches, before converging with State Route 375, the "Extraterrestrial Highway", south of Rachel.
Area 51 shares a border with the Yucca Flat region of the Nevada Test Site, the location of 739 of the 928 nuclear tests conducted by the United States Department of Energy at NTS. The Yucca Mountain nuclear waste repository is southwest of Groom Lake.