Plant Communities: Sagebrush Scrub Yellow Pine Forest Red Fir Forest Lodgepole Forest Pinyon-Juniper Woodland
Counties: Butte Colusa Del Norte El Dorado Fresno Glenn Humboldt Inyo Lassen Madera Mariposa Modoc Nevada Placer Plumas Santa Barbara San Bernardino Shasta Sierra Siskiyou Tehama Trinity Tulare