Sedan Crater

Detonation : 9:00A.M., July 6, 1962, Nevada Test Site
Yield: 110 kilotons (thermonuclear)
Crater: 600 feet deep, 1,200 feet wide, 179 million cubic feet in volume
Purpose: Earth-moving experiment to determine the feasibility of national-crisis engineering projects, such as the creation of an alternate Panama Canal should the existing waterway become obstructed
Area 10, Nevada Test Site, Nye County, Nevada. October 29, 1984.