Granite Mountains (western San Bernardino County, California)

A 1:250,000 scale geologic map of the region by Bortugno and Spittler[3] shows the area of the Granite mountains north of the Helendale fault zone to consist of Jurassic or Cretaceous quartz monzonite.

At the south end of Fairview Valley in the Granite Mountains, Bowen[11] noted that typical exposures of quartz monzonite consisted of rounded, often rhomboidal, boulders.

Renewable Energy Systems proposed 28 wind turbines in the northeastern Granite Mountains; the project was withdrawn in 2013 due to the presence of golden eagle nests nearby.

Plants in the proposed project area include the Joshua tree and other Yucca species, Cymopterus panamintensis, Eriogonum fasciculatum, Larrea tridentata, and Cryptantha clokeyi.

Animal species include Papilio indra (Indra's Swallowtail), American white pelican (Pelecanus erythrorhynchos), bald eagle (Haliaeetus leucocephalus), Bendire's thrasher (Toxostoma bendirei), golden eagle (Aquila chrysaetos), loggerhead shrike (Lanius ludovicianus), Northern harrier (Circus cyaneus), Swainson’s hawk (Buteo swainsoni), willow flycatcher (Empidonax traillii), yellow warbler (Dendroica petechia), burrowing owl (Athene cunicularia), Pallid bat (Antrozous pallidus), Townsend's big-eared bat (Plecotus townsendii), and desert tortoise (Gopherus agassizii).