Nevada Test Site

Since Pres. Harry Truman established the Nevada Test Site (NTS) in December 1950, it has played a vital role in the security of the United States. For four decades, the test site's primary purpose was developmental testing of nuclear explosives. Atmospheric tests conducted over Yucca Flat and Frenchman Flat between 1951 and 1962 involved thousands of Army troops and Marines simulating nuclear battlefield conditions. Civil defense planners studied blast and radiation effects and evaluated bomb sh