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Nevada Test Site

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The Nevada Test Site (NTS) is a United States Department of Energy reservation located in southeastern Nye County, Nevada, about 65 mi (105 km) northwest of the city of Las Vegas. Formerly known as the Nevada Proving Ground, the site, established on January 11, 1951, for the testing of nuclear devices, is composed of approximately 1,350 sq mi (3,500 km2) of desert and mountainous terrain. Nuclear testing at the Nevada Test Site began with a one-kiloton (4 terajoule) bomb dropped on Frenchman Flat on January 27, 1951.

Between 1951 and 1992, there were a total of 928 announced nuclear tests at Nevada Test Site. Of those, 828 were underground.1 (Sixty-two of the underground tests included multiple, simultaneous nuclear detonations, adding 93 detonations and bringing the total number of NTS nuclear detonations to 1,021, of which 921 were underground.)2 The site is covered with subsidence craters from the testing. The Nevada Test Site was the primary testing location of American nuclear devices; 126 tests were conducted elsewhere (many at the Pacific Proving Grounds in the Marshall Islands).


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