Nevada Nuclear Test Site

The Nevada National Security Sites, popularized as the Nevada Test Site until 2010, is a reservation of the Department of Energy of the federal Government of the United States located in the southeastern portion of the Nye County in Nevada, about 65 mi northwest of the city of Las Vegas.

Formerly known as the Nevada Proving Grounds of the United States Army, the site was acquired as the testing venue for the American nuclear devices in 1951. The site's area consists of approximately 1,350 sq mi of desert and mountainous terrain with 28 areas which has about 1,100 buildings connected with the 400 mi of paved roads and the 300 mi miles of unpaved roads as well as ten heliports and two airstrips.

Source: Wikipedia