Atomic Testing
Photo: U.S. Department of Energy
The Sedan Crater was formed when a 104-kiloton explosive buried under 635 feet of desert rock and soil was fired at the Nevada Test Site on July 6, 1962, displacing 12 million tons of earth. The crater is 320 feet deep and has a diameter of about 1,280 feet. The radioactive cloud rose 12,000 feet in the air and headed east then northeast toward the Mississippi River. The crater shown is listed on the National Register of Historic Places.
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