Spirit Mountain Wilderness, Nature reserve in Clark County, Nevada, US

Spirit Mountain Wilderness is a 33,518-acre wilderness area in the Newberry Mountains of Clark County, Nevada, 10 miles northwest of Laughlin. It is managed by the Bureau of Land Management and the National Park Service, mostly within Lake Mead National Recreation Area and entirely within Avi Kwa Ame National Monument. The area adjoins Nellis Wash and Bridge Canyon wilderness areas.

Congress established this wilderness area in 2002 under joint management by the Bureau of Land Management and National Park Service. This designation protected the land from intensive development and preserved its natural character.

Grapevine Canyon, just south of Spirit Mountain, holds numerous abstract, anthropomorphic and animal figures pecked directly into basalt near the canyon mouth. The area lay in the homeland of the Yuman Indians, and Yuman and Mojave people believe all life began on Spirit Mountain. Descendants of the first Native American residents still live on the Fort Mojave Indian Reservation, about 20 miles south.

Grapevine Canyon, just south of Spirit Mountain, has a parking area with restrooms; reaching the petroglyphs requires about a half-mile walk through desert scrub. Ranger-guided hikes are offered by National Park Service staff based at Katherine Landing on the east side of Lake Mohave, 2 miles north of Bullhead City, Arizona, reached via Arizona Highway 95 and Highway 68.

The Yuman and Mojave peoples hold that all life began on Spirit Mountain, which can be seen from Bullhead City, Needles, Laughlin, Cal-Nev-Ari and Searchlight. Descendants of the area's first Native American residents still live on the Fort Mojave Indian Reservation about 20 miles south of the wilderness.