Testing began in July 1946 and was conducted intermittently until 31 October 1958, when
President Eisenhower signed a moratorium with the former Soviet Union to stop testing. On 25 May 1953, Grable was fired from a 280mm gun and produced a yield of 15 kilotons. Priscilla which produced a yield of 37 kilotons, was detonated on 24 June 1957. The
Sedan Crater at Area 2 was created when a 104 kiloton explosive was fired on 6 July 1962. Area 2 was the site of 144 tests comprising 169 detonations. ==References==