Sedan Nuclear Test Crater in Nevada: Remains of a Massive Explosion

A Monument to Nuclear History

Nestled in the Nevada desert, the Sedan Nuclear Test Crater stands as a stark reminder of the atomic age. Created on July 6, 1962, as part of Operation Plowshare—a program exploring the peaceful use of nuclear explosions—the crater is one of the largest and most striking remnants of nuclear testing. Measuring 320 feet (98 meters) deep and 1,280 feet (390 meters) across, it’s a vast scar on the desert landscape.

The Creation of the Crater

The Sedan test involved the detonation of a 104-kiloton nuclear device, buried 635 feet (194 meters) below the surface. The explosion displaced over 12 million tons of earth, resulting in the massive crater visible today. The test was intended to demonstrate the feasibility of using nuclear explosions for large-scale earthmoving projects, such as creating canals or mining operations.

Environmental and Global Impacts

While the Sedan test showcased the power of nuclear technology, it also highlighted its dangers. The explosion released significant amounts of radioactive material into the atmosphere, contributing to global fallout and raising concerns about the environmental and health effects of such tests. It remains the United States’ largest cratering experiment and an enduring symbol of the nuclear era.

A Popular Landmark

Today, the Sedan Crater is part of the Nevada National Security Site and can be visited during guided tours. Its sheer size and historical significance make it a fascinating destination for those interested in the history of nuclear testing and its lasting impact on the world.