Operation Plowshare occurred in what US state?
Sedan Crater Sedan Crater is the result of the Sedan nuclear test and is located within the Nevada Test Site, 12 mi southwest of Groom Lake, Nevada (Area 51). The crater was listed on the National Register of Historic Places on March 21, 1994. The crater is a man-made object that can be seen from earth orbit with the unaided eye.
Phoenix, Arizona Phoenix ( ) is the capital and most populous city of the U.S. state of Arizona. With 1,615,017 people (as of 2016 ), Phoenix is the fifth most populous city nationwide, the most populous state capital in the United States, and the only state capital with a population of more than one million residents.