Clark Mountain, Limestone summit in Mojave National Preserve, California, US

Clark Mountain is a limestone summit in Mojave National Preserve that rises to approximately 7,933 feet in elevation. The peak features three distinct climbing tiers and extensive limestone rock formations that stand out sharply against the surrounding desert landscape.

The mountain was named after the Clarke Mining District established in 1869, which took its name from William H. Clarke, a saloon keeper from Visalia. This mining region influenced the early development of the surrounding area during that era.

The mountain holds numerous limestone sport climbing routes, including Jumbo Love, established in 2008 as North America's first grade 5.15b climb.

The peak rises directly north of Mountain Pass and Interstate 15, the usual approach corridor; the final stretch is rough and needs a high-clearance four-wheel-drive vehicle. Snow falls on the high summits in winter, and annual precipitation is low, so plan around cold and wind at altitude. The climbing sector was developed from 1992 onward.

Snow falls on Clark Mountain's high peaks in winter even though the mountain receives little precipitation annually. The sky-island forest of single-leaf pinyon pine, Utah juniper and white fir stands above foothill stands of creosote bush and Joshua tree.