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Nevada Test Site

Nevada Test Site
Near Las Vegas, Nevada in the United States
Exercise Desert Rock I (Buster-Jangle Dog) 002.jpg
November 1951 nuclear test at Nevada Test Site. Test is shot "Dog" from Operation Buster, with a yield of 21 kilotons of TNT (88 TJ). It was the first U.S. nuclear field exercise conducted with live troops maneuvering on land. Troops shown are 6 mi (9.7 km) from the blast.
Nevada Test Site is located in the US
Nevada Test Site
Map showing location of the site
Coordinates 37°07′N 116°03′W / 37.117°N 116.050°W / 37.117; -116.050Coordinates: 37°07′N 116°03′W / 37.117°N 116.050°W / 37.117; -116.050
Type Nuclear Weapons Research Complex
Area ~1,350 sq mi (3,500 km2)
Site information
Operator United States Department of Energy
Status Active
Site history
In use 1951–present
Test information
Nuclear tests 928

The Nevada National Security Site (NNSS), previously the Nevada Test Site (NTS), is a United States Department of Energy reservation located in southeastern Nye County, Nevada, about 65 miles (105 km) northwest of the city of Las Vegas. Formerly known as the Nevada Proving Grounds, the site was established on 11 January 1951 for the testing of nuclear devices, covering approximately 1,360 square miles (3,500 km2) of desert and mountainous terrain. Nuclear testing at the Nevada Test Site began with a 1-kiloton-of-TNT (4.2 TJ) bomb dropped on Frenchman Flat on 27 January 1951. Many of the iconic images of the nuclear era come from the NTS.

During the 1950s, the mushroom clouds from the 100 atmospheric tests could be seen for almost 100 mi (160 km). The city of Las Vegas experienced noticeable seismic effects, and the distant mushroom clouds, which could be seen from the downtown hotels, became tourist attractions. St. George, Utah, received the brunt of the fallout of above-ground nuclear testing in the Yucca Flats/Nevada Test Site. Winds routinely carried the fallout of these tests directly through St. George and southern Utah. Marked increases in cancers, such as leukemia, lymphoma, thyroid cancer, breast cancer, melanoma, bone cancer, brain tumors, and gastrointestinal tract cancers, were reported from the mid-1950s through 1980. The vast majority—828 of the 928 total nuclear tests—were underground.

From 1986 through 1994, two years after the United States put a hold on full-scale nuclear weapons testing, 536 anti-nuclear protests were held at the Nevada Test Site involving 37,488 participants and 15,740 arrests, according to government records. Those arrested included the astronomer Carl Sagan and the actors Kris Kristofferson, Martin Sheen, and Robert Blake.


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