National Natural Landmarks in California: Listed by County

The National Natural Landmarks program falls under the supervision of the National Parks Service. A National Natural Landmark is a location that contains spectacular biological and geological resources, immaculate beauty, diversity and possesses high value in both the scientific and educational fields.

There are roughly 586 locations listed on the National Registry of Natural Landmarks. Of those 586, roughly 35 of them are located in California. These Natural Landmarks are spread throughout 24 different counties. The following is a list of California’s National Natural Landmarks organized by counties:

  • Amador

    Black Chasm Cave
  • Contra Costa

    Mt. Diablo State Park
  • El Dorado

    Emerald Bay
  • Imperial

    • Anza-Borrego Desert State Park
    • Imperial Sand Hills
    • San Felipe Creek Area
  • Inyo

    • Deep Springs Marsh
    • Eureka Dunes
    • Fish Slough
  • Kern

    • Sand Ridge Wildflower Preserve
    • Sharktooth Hill
  • Los Angeles

    Rancho La Brea
  • Marin

    Audubon Canyon Ranch
  • Mendocino

    • Elder Creek
    • Pygmy Forest
  • Mono

    Fish Slough
  • Monterey

    Point Lobos State Reserve
  • Orange

    Irvine Ranch
  • Riverside

    Anza-Borrego Desert State Park
  • Sacramento

    • American River Bluffs and Phoenix Park Vernal pools
    • Riparian Woodlands
  • San Benito

    San Andreas Fault
  • San Bernadino

    • Amboy Crater
    • Cinder Cone Natural Area
    • Mitchell Caverns and Winding Stair Cave
    • Rainbow Basin
    • Trona Pinnacles
    • Turtle Mountains Natural Area
  • San Diego

    • Anza-Borrego Desert State Park
    • Miramar Mounds
    • Tijuana River Estuary
    • Torrey Pines State Reserve
  • San Luis Obispo

    Nipomo Dunes-Point Sal Coastal Area
  • San Mateo

    Ano Nuevo Point and Island
  • Santa Barbara

    Nipomo Dunes-Point Sal Coastal Area
  • Shasta

    Burney Falls
  • Siskiyou

    Mount Shasta
  • Solano

    Dixon Vernal Pools
  • Tulare

    Pixley Vernal Pools
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