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Nevada National Security Site

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U1a Complex - Tour Overview

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The NNSS is National Security

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01/29/2019 | Nevada National Security Site Shooting

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U1a 2nd Shift – A Day in the Life

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Shooting lawsuit for man shot, killed at Nevada National Security Site

The Nevada National Security Site, 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 weapons 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. NNSS is operated by Mission Support and Test Services, LLC.