Facilities.
Test ranges, air bases, private sites. Active or historical.
Area 51 (Groom Lake)
United States Air Force test range located on the southern shore of Groom Lake, Nevada. Officially acknowledged by the CIA in 2013. Operating site for OXCART (1962 to 1968), Have Blue (1977 to 1979), and the F-117 Senior Trend program (1981 to 1992).
Cheyenne Mountain Complex
Underground command center built into Cheyenne Mountain, Colorado. Headquarters of NORAD, responsible for aerospace warning and control over North America. One of the primary facilities tracking unidentified aerial phenomena in North American airspace, with access to data from all military radar systems.
Dugway Proving Ground
Remote US Army facility in Utah desert sometimes called "Area 52." Spans 800,000 acres used for testing chemical, biological, and advanced weapons systems. Frequent UAP reports from surrounding communities, and known to test classified aircraft. Home to the Michael Army Airfield.
Dulce Base
Alleged deep underground military base beneath the Archuleta Mesa near Dulce, New Mexico. Claimed by whistleblowers to house multiple levels of joint human-alien research, including genetic experiments and detained abductees. No physical evidence has been independently confirmed.
Holloman Air Force Base
USAF base in New Mexico allegedly the site of a formal landing and meeting between US government officials and extraterrestrial beings in 1954, during the Eisenhower administration. Also site of multiple documented UAP encounters and early test flights of classified aircraft programs.
Kapustin Yar
Russian missile test facility established in 1946, often called the Russian Area 51. Site of multiple documented UAP incidents from Soviet military personnel. Declassified KGB files describe encounters with disc-shaped craft, and a 1948 incident where an intercepted object reportedly fired on a Soviet aircraft.
Kirtland Air Force Base
USAF installation in Albuquerque, New Mexico, home to nuclear weapons storage and the Air Force Research Laboratory. Connected to multiple UAP investigations including the Kirtland AFB intrusions of 1980, where unidentified craft were observed and tracked over secure nuclear storage areas.
McMinnville (Trent farm)
Site of the 11 May 1950 Trent photographs. The Trent farmhouse no longer stands.
Pine Gap
Joint US-Australian signals intelligence facility located 18km southwest of Alice Springs. Operated jointly by the CIA, NSA, and Australian Signals Directorate. Tracks ballistic missiles, monitors communications, and supports drone operations. Multiple UAP incidents reported in surrounding airspace.
RAF Bentwaters / Woodbridge
Former US Air Force base in Suffolk, England, site of the Rendlesham Forest incident in December 1980 — one of the most documented military UAP encounters on record. Multiple USAF personnel, including the deputy base commander, observed and interacted with an unidentified craft over two nights.
RAF Menwith Hill
Largest electronic monitoring station in the world, operated by the NSA on British soil. Intercepts satellite communications, telephone calls, and internet traffic globally. Multiple UAP incidents reported near the facility by British military and civilian witnesses, with some reports suggesting the objects may have interfered with station equipment.
Ramey Air Force Base
Former Strategic Air Command base in Puerto Rico, connected to the Puerto Rico UAP corridor — one of the most active UAP zones in the Western Hemisphere. Multiple military and civilian encounters documented near the base and surrounding waters, including interactions with objects transitioning between air and water.
S-4
Alleged facility located approximately 15 miles south of Area 51 near Papoose Lake, Nevada. Brought to public attention by physicist Bob Lazar in 1989, who claimed to have worked there reverse-engineering extraterrestrial propulsion systems. Nine disc-shaped craft were allegedly housed in hangars built into the mountainside.
Skinwalker Ranch
Approximately 480-acre property in the Uintah Basin acquired by Robert Bigelow in 1996 and subsequently studied by the National Institute for Discovery Science. Sold to current owner in 2016. Subject of the 2005 Knapp and Kelleher book Hunt for the Skinwalker.
White Sands Missile Range
United States Army missile range in south-central New Mexico. Site of the first nuclear weapon test (Trinity) on 16 July 1945, and of US captured V-2 rocket tests from 1946 onward. Adjacent to the Roswell area where the 1947 incident occurred.
Wright-Patterson Air Force Base
United States Air Force installation in Greene and Montgomery counties, Ohio. Headquarters of the Air Force Materiel Command. Historical home of Project Sign, Grudge, and Blue Book between 1947 and 1969. Subject of the persistent Hangar 18 allegation, never officially substantiated.