<P> The Nevada National Security Site ( N2S2 ) , ( though the abbreviation NNSS is still used ) , 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 km ) 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 National Security Technologies , LLC , a joint venture of Northrop Grumman , AECOM , CH2M Hill , and Babcock & Wilcox . </P>
<P> The Nevada National Security Site ( N2S2 ) , ( though the abbreviation NNSS is still used ) , 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 km ) 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 National Security Technologies , LLC , a joint venture of Northrop Grumman , AECOM , CH2M Hill , and Babcock & Wilcox . </P>
where did they do nuclear testing in nevada
where did they do nuclear testing in nevada
Nevada National Security Site
Nevada National Security Site