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