Example image of eyePlorer eyePlorer map for 'Los Angeles County, California': California County (United States) List of the most populous counties in the United States United States United States Census Bureau County seat Los Angeles City Unincorporated area Antelope Valley Desert Kern County, California Santa Clarita Valley Angeles National Forest San Gabriel Mountains Greater Los Angeles Area List of U.S. states and territories by population Connecticut Michigan United States Conference of Mayors Orange County, California San Bernardino County, California American Civil Liberties Union Seal of Los Angeles County, California Separation of church and state Pacific Ocean Los Angeles River Rio Hondo (California) San Gabriel River (California) Santa Clara River (California) Santa Monica Mountains Mojave Desert San Clemente Island Santa Catalina Island, California Los Angeles Basin San Fernando Valley San Gabriel Valley Crescenta Valley Blizzard Lumber Mountain Snow Temperate coniferous forest Ventura County, California San Emigdio Mountains Sierra Pelona Mountains Tehachapi Mountains Transverse Ranges Mount Baden-Powell Mount Burnham