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Crater from the “Sedan” underground nuclear test as part of Operation Plowshare in Nevada. The 104 kiloton blast displaced 12 million tons of earth and created a crater 320 feet deep and 1,280 feet wide; ca. 1962
There’s an urban legend that says that this blast is responsible for John Wayne’s death (and most of the film crew) due to cancer: Of the 220 persons who worked on The Conqueror on loca…