Plant Communities: Douglas-Fir Forest Closed-cone Pine Forest Foothill Woodland Chaparral
Counties: Alameda Butte Contra Costa Colusa Del Norte El Dorado Fresno Glenn Humboldt Lake Los Angeles Marin Mariposa Mendocino Monterey Modoc Napa Nevada Orange Placer Riverside Sacramento Santa Barbara San Bernardino Santa Clara Santa Cruz San Diego San Luis Obispo San Mateo Shasta Sierra Siskiyou Sonoma Tehama Trinity Ventura