Clipper Valley is a vast, oval-shaped alluvial plain located in the eastern Mojave Desert, in southeast California. The region has been the site of numerous mining operations, particularly during the Gold Rush.

Covering over 400 square miles, the valley is large enough to hold most of greater Los Angeles. It has two prominent geologic features, the largest being the Blind Hills, a heavily eroded, flat-topped outcropping of rocky hills, and Halfway Hill, located near the center of the valley. Interstate 40 passes the valley on its southern border. Only two small roads actually cross the valley, a small dirt road called Vulcan Mine Road, and a largely abandoned stretch of U.S. Route 66.