Nevada National Security Site, Nuclear test site in Nye County, Nevada, US.
The Nevada National Security Site is a military training area in southern Nevada managed by the Department of Energy. The facility lies in the desert north of Las Vegas and covers several sectors with different installations.
The site served as a nuclear testing ground from the early 1950s until the early 1990s. Tests began above ground and later moved underground into tunnels and shafts.
Las Vegas residents and visitors gathered at viewing points during the 1950s to observe the nuclear explosions that created visible mushroom clouds.
Bus tours are organized by the Department of Energy and must be booked in advance. All visitors undergo a security clearance before entering the site.
A crater from a test in the 1960s measures over 1,000 feet across. Visitors can view it from the rim during guided tours.
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