The Sand Springs Range was the site of Project Shoal , an underground nuclear test conducted as part of the Vela Uniform program . '' Shoal '' was a 12 kiloton device which was detonated below ground on October 26 , 1963 . As the area experienced a series of large earthquakes in 1954 , seismic traces for the events could be compared to help differentiate future Soviet underground nuclear tests from earthquakes . The site is unrestricted and unmarked . No surface crater was formed , and the casual observer will find little evidence that the event ever took place
Project Shoal
Project Shoal
Sand Springs Range