List of National Natural Landmarks in California

There are 37 National Natural Landmarks in California.

Name	Image	Date	Location	County	Ownership	Description
Amboy Crater				San Bernardino	Federal	A 6,000-year-old volcanic cinder cone, made up of pahoehoe, just off historic U.S. Highway 66.
American River Bluffs and Phoenix Park Vernal Pools				Sacramento	Federal, state, and municipal	Contains vernal pools, and blue oak woodlands.
Año Nuevo State Reserve				San Mateo	State	One of the largest mainland breeding grounds for the northern elephant seal.
Anza-Borrego Desert				Imperial, Riverside, San Diego	State	The largest desert state park in the nation.
Audubon Canyon				Marin	Private	The largest known nesting area for great blue herons and great and snowy egrets on the Pacific Coast.
Black Chasm Cave				Amador	Private	A small three-level cave containing a variety of speleothems and some of the best helictite formations in the western U.S.
Burney Falls				Shasta	State	Contains some of the best examples in the western United States of a river drainage regulated by stratigraphically controlled springs.
Cinder Cone Natural Area				San Bernardino	Federal	A complex of over 20 large cinder cones of recent origin with extensive and continuous lava flows.
Cosumnes River Riparian Woodlands				Sacramento	Private, Federal, State, and County	A small remnant of a rapidly-disappearing riparian woodland community type that once formed a major part of the central valley.
Deep Springs Marsh				Inyo	Private	An example of increasingly rare desert marsh.
Dixon Vernal Pools				Solano	Private	The best example of valley needlegrass grassland in the central valley.
Elder Creek				Mendocino	State	A largely undisturbed watershed containing large old stands of Douglas fir, broadleaf evergreens, and deciduous trees.
Emerald Bay				El Dorado	State	An outstanding example of glacial geology.
Eureka Dunes				Inyo	Federal	The tallest dune complex in the Great Basin.
Fish Slough Area of Critical Environmental Concern				Inyo, Mono	Mixed- federal, state, municipal	A large, essentially undisturbed, desert wetland that provides habitat for the alkali mariposa lily and the endangered Owens pupfish.
Guadalupe-Nipomo Dunes				San Luis Obispo	Mixed- federal, state, private	A coastal dune tract with off-road vehicle recreation, a national wildlife refuge, beaches, and nesting for the western snowy plover.
Imperial Sand Hills				Imperial	Federal	One of the largest dune patches in the United States.
Irvine Ranch Natural Landmarks				Orange	Mixed- state, county, municipal	A remarkably complete stratigraphic succession ranging in age from late Cretaceous to the present.
Lake Shasta Caverns				Shasta	Private	A well-decorated Solutional cave that contains a diverse assemblage of calcite cave formations.
Lanphere Dunes and Ma-le'l Dunes		2021		Humboldt	Federal	Considered to be the largest and best quality sand dune ecosystems representing coastal dunes in the area.
Miramar Mounds				San Diego	Federal	Contains unique soil features called mima mounds, which are found in only three or four locations in the country, and vernal pools.
Mitchell Caverns and Winding Stair Cave				San Bernardino	State	Regarded as the most important solution caverns in the Mojave Desert.
Mt. Diablo State Park				Contra Costa	State	One of the few areas in the region where geologic strata of Jurassic, Cretaceous, and Tertiary age can be seen in an aggregate thickness of.
Mount Shasta				Siskiyou	Federal	One of the world's largest and most impressive stratovolcanoes, within the Shasta-Trinity National Forest.
Pixley Vernal Pools				Tulare	Private	One of the few remaining natural vernal pools containing rare endemic crustacean species such as vernal pool fairy shrimp.
Point Lobos				Monterey	State	An outstanding example of terrestrial and marine environments in close association, and the only known habitat of Monterey cypress and variegated brodiaea.
Pygmy Forest at Jug Handle State Natural Reserve				Mendocino	State	Includes a five step ecological staircase on which a unique forest of low, stunted trees and shrubs is located.
Rainbow Basin				San Bernardino	Federal	Deep erosion canyons with rugged rims with fossil evidence of insects and Miocene mammals.
La Brea Tar Pits				Los Angeles	Municipal	Site of the world-famous natural asphalt tar pits.
San Andreas Fault				San Benito	Private	One of the best illustrations of earth displacement caused by small crustal movements.
San Felipe Creek Area				Imperial, San Diego	Federal, state	A marsh containing probably the last remaining perennial natural desert stream in the Colorado Desert region.
Sand Ridge Wildflower Preserve				Kern	Private	A remnant natural area displaying a great diversity of floral species including the Bakersfield cactus.
Sharktooth Hill				Kern	Private	One of the most abundant, diverse and well- preserved fossil marine vertebrate sites in the world.
Tijuana River Estuary				San Diego	Federal, state, municipal	One of the finest remaining saltwater marshes on the California coastline.
Torrey Pines State Natural Reserve				San Diego	State	Contains a natural Torrey pine forest, high bluffs and sea cliffs, and endangered bird species.
Trona Pinnacles				San Bernardino	Federal	A relict landform from the Pleistocene containing unique formations of calcium carbonate.
Turtle Mountain				San Bernardino	Federal, state	Contains two mountain sections of entirely different composition.