1951 ‘Dog’ test in Operation Buster, with a yield of 21 kilotons of TNT, first U.S. nuclear field exercise conducted with live troops maneuvering on land. Troops shown are 6 mi (9.7 km) from the blast. The Nevada Test Site was/is 65 miles NE of Las Vegas, 100 mi. from St. George, Utah.
Whaddaya Say?