The Calico Mountains Wilderness includes the southern portion of the Calico Mountains a typical north -south trending Great Basin mountain range. Elevations in the wilderness range from 3,950 to 8,491 feet at Donnelly Peak. Sagebrush is the dominant vegetation type, with saltbush and greasewood occurring at the lower elevations. Several canyons also contain willows, cottonwoods, aspens and other riparian species. The Calicos were named for the colorful rock layers and formations that make up the southern potion of the range. Wildlife that inhabits the area includes mule deer, California bighorn sheep, pronghorn antelope, mountain lion, kit fox, coyote, and sage grouse.