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The first nuclear explosion (Trinity test) was on a 100 foot steel tower in New Mexico (but was not dropped).

The first atomic bomb dropped on US soil was on Frenchman Flat on January 27, 1951 in the Nevada Test Site. Above ground tests continued there until July 17, 1962. Underground tests continued until September 23, 1992. Underground tests of subcritical masses continue to this day.

A variety of underground tests were performed in several states including Alaska, Colorado, and New Mexico.

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10y ago

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