Established by President Truman in 1951 and now operated by the Department of Energy, the Nevada Test Site (NTS) has been the site of over 900 atmospheric and underground nuclear tests. The Nevada Test Site was the primary testing location of American nuclear devices; 126 tests were conducted elsewhere (many at the Pacific Proving Grounds in the Marshall Islands). On July 17, 1962 the last atmospheric test detonation occurred at the Nevada Test Site. Underground testing continued until September 23, 1992.
Below is a copy of an original teletype news release issued by United Press in 1953. This copy was read on the air at KTRB by Cal Purviance on June 4, 1953 a 430 AM.
Nevada Atomic Blast Rattles Modesto
November 1951 nuclear test at Nevada Test Site with a yield of 21 kilotons of TNT. It was the first U.S. nuclear field exercise conducted on land; troops shown are 6 mi (9.7 km) from the blast.