Named for the dry lakes found at the center of the wilderness area, this area has a variety of natural resources. The east portion is mountainous while the west portion is a vast alluvial fan and bajada. Elevations range from 1,400 feet (430 m) at the desert floor to the rugged Bullion Mountains, which rise more than 4,100 feet (1,200 m) across a 4-mile (6.4 km) stretch.[2]