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Summary

Tonopah Test Range (TTR), also known as Area 52, is a restricted military installation 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 Dry Lake, 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 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. The airspace comprises restricted area R-4809 of the Nevada Test and Training Range and is often used for military training.

Tonopah Test Range Airport (IATA: XSD, ICAO: KTNX, FAA LID: TNX) is located near the center of the Tonopah Test Range, 27 NM (50 km; 31 mi) southeast[1] of Tonopah, Nevada and 140 mi (230 km) northwest of Las Vegas, Nevada. It is a major airfield with a 12,000 x 150 ft (3,658 x 46 m) runway, instrument approach facilities, and nighttime illumination. The facility boasts over fifty hangars and an extensive support infrastructure.

Sources

http://en.wikipedia.org/wiki/Tonopah_Test_Range

http://en.wikipedia.org/wiki/Tonopah_Test_Range_Airport

http://ttr.sandia.gov