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Biogeographic Regions of Arizona

Mojave Desert Region

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The Mojave Desert region covers a portion of northwestern Arizona west of the Grandwash Cliffs of the Grand Canyon and stretching southward to the Hualapai Mountains near Kingman. Despite very low annual rainfall and blistering summer temperatures, several well-adapted plants and animals manage to grow in this environment including the distinctive joshua tree.

Biotic communities found in the Mojave Desert Region of Arizona include Mojave Desertscrub, Great Basin Desertscrub, Grassland, Pinon Pine-Juniper Woodland, Montane Ponderosa Pine Forest and Northern Arizona Riparian Woodland.

Mojave Desert Geology