The Spring Mountains National Recreation Area (SMNRA) is a U.S. national recreation area, administered by the U.S. Forest Service, west of Las Vegas, Nevada. It covers over 316,000 acres. The area runs from low meadows, to the 11,918-foot (3,633 m) Mount Charleston. The SMNRA is a part of the Humboldt-Toiyabe National Forest. It adjoins the Red Rock Canyon National Conservation Area, which is administered by the Bureau of Land Management.