Tonopah Test Range

USAF Tonopah Test Range
Nevada (South)
Tonopah airbase and the surrounding test range (composite NASA Landsat-7 image)
Coordinates	37°47′N 116°46′W / 37.78°N 116.77°W / 37.78; -116.77
Type	Test Range
Site information
Owner	United States Department of Energy
Controlled by	United States Department of Energy DoE United States Air Force USAF Department Of Defense DoD National Nuclear Security Administration NNSA and other Government Agencies
Open to the public	No
Site history
Built	1957 (1957)
Garrison information
Current commander	Classified
Past commanders	Brian T. Adkins[1]
Occupants	412th Test Wing

The Tonopah Test Range (TTR, also designated as Area 52) is a highly classified, restricted military installation of the United States Department of Defense, and United States Department of Energy (nuclear stockpile stewardship) located about 30 miles (48 km) southeast of Tonopah, Nevada. It is part of the northern fringe of the Nellis Range, measuring 625 sq mi (1,620 km²). Tonopah Test Range is located about 70 miles (110 km) northwest of Groom Lake, the home of the Area 51 facility.

Like the Groom Lake facility, Tonopah is a site of interest to conspiracy theorists, mostly for its use of experimental and classified aircraft. As such, it is not generally the focus of alien enthusiasts, unlike its neighbor. It is currently used for nuclear weapons stockpile reliability testing, research and development of fusing and firing systems, and testing nuclear weapon delivery systems.^[2] The airspace comprises restricted area R-4809 of the Nevada Test and Training Range and is often used for military training.