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Ecoregions of California

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To check where a specific point lies, you can look it up in our Ecoregion Locator.

↑Map Legend & Subregion List

This list will help you navigate the regions in case you have problems with viewing or clicking the interactive map above.

Name†Color on Map
Sierra Nevada-Influenced Semiarid Hills and Basins○
Upper Owens Valley○
Sierra Nevada-Influenced High Elevation Mountains○
Sierra Nevada-Influenced Ranges○
Tonopah Basin○
Eastern Mojave Low Ranges and Arid Footslopes○
Eastern Mojave Basins○
Eastern Mojave Mountain Woodland and Shrubland○
Arid Valleys and Canyonlands○
Mojave Playas○
Western Mojave Basins○
Amargosa Desert○
Western Mojave Low Ranges and Arid Footslopes○
Death Valley/Mojave Central Trough○
Western Mojave Mountain Woodland and Shrubland○
Mojave Lava Fields○
Fort Bragg/Fort Ross Terraces○
Coastal Lowlands○
Point Reyes/Farallon Islands○
Santa Cruz Mountains○
San Mateo Coastal Hills○
High Southern Cascades Montane Forest○
Low Southern Cascades Mixed Conifer Forest○
Sierran Alpine○
Northern Sierra Subalpine Forests○
Northeastern Sierra Mixed Conifer-Pine Forests○
Northern Sierra Upper Montane Forests○
Eastern Sierra Mojavean Slopes○
Southern Sierra Upper Montane Forests○
Central Sierra Mid-Montane Forests○
Central Sierra Lower Montane Forests○
Southern Sierra Subalpine Forests○
Temblor Range/Elk Hills○
Tehama Terraces○
Foothill Ridges and Valleys○
North Coast Range Eastern Slopes○
Western Valley Foothills/Dunnigan Hills○
Mayacmas Mountains○
Napa-Sonoma-Lake Volcanic Highlands○
Marin Hills○
Bay Flats○
San Francisco Peninsula○
Bay Terraces/Lower Santa Clara Valley○
Upper Santa Clara Valley○
Monterey Bay Plains and Terraces○
Western Klamath Low Elevation Forests○
Rogue/Illinois/Scott Valleys○
Eastern Klamath Montane Forests○
Western Klamath Montane Forests○
Eastern Klamath Low Elevation Forests○
Klamath Subalpine○
Duzel Rock○
Outer North Coast Ranges○
High North Coast Ranges○
Northern Terraces○
North Valley Alluvium○
Southern Hardpan Terraces○
Butte Sink/Sutter and Colusa Basins○
Sacramento/Feather Riverine Alluvium○
Yolo Alluvial Fans○
San Joaquin Basin○
Manteca/Merced Alluvium○
Westside Alluvial Fans and Terraces○
Granitic Alluvial Fans and Terraces○
Panoche and Cantua Fans and Basins○
Tulare Basin/Fresno Slough○
Southern Clayey Basins○
Pluvial Lake Basins○
Sand Hills/Sand Dunes○
Western Sonoran Mountains○
Upper Coachella Valley and Hills○
Imperial/Lower Coachella Valleys○
Lower Colorado/Lower Gila River Valleys○
Central Sonoran/Colorado Desert Mountains○
Central Sonoran/Colorado Desert Basins○
Santa Barbara Coastal Plain and Terraces○
Oxnard Plain and Valleys○
Venturan-Angeleno Coastal Hills○
Los Angeles Plain○
Diegan Coastal Terraces○
Diegan Coastal Hills and Valleys○
Diegan Western Granitic Foothills○
Northern Channel Islands○
Southern Channel Islands○
Inland Valleys○
Inland Hills○
Santa Ana Mountains○
Western Transverse Range Lower Montane Shrub and Woodland○
Arid Montane Slopes○
Southern California Lower Montane Shrub and Woodland○
Southern California Montane Conifer Forest○
Northern Transverse Range○
Klamath Juniper Woodland/Devils Garden○
Klamath/Goose Lake Basins○
Pit River Valleys○
Shasta Valley○
Warner Mountains○
Mono-Adobe Valleys○
Sierra Valley○
Bishop Volcanic Tableland○
Lahontan and Tonopah Playas○
Tonopah Sagebrush Foothills○
Mesquite Flat/Badwater Basin○
Mojave Sand Dunes○
Western Mojave High Elevation Mountains○
Northern Franciscan Redwood Forest○
King Range/Mattole Basin○
Coastal Franciscan Redwood Forest○
Serpentine Siskiyous○
Inland Siskiyous○
Coastal Siskiyous○
Klamath River Ridges○
Border High-Siskiyous○
Cascade Subalpine/Alpine○
California Cascades Eastside Conifer Forest○
Southern Cascades Foothills○
Western Sonoran Mountain Woodland and Shrubland○
Western Sonoran Basins○
Eastern Sierra Great Basin Slopes○
Northern Sierra Mid-Montane Forests○
Northern Sierra Lower Montane Forests○
Southern Sierra Mid-Montane Forests○
Southern Sierra Lower Montane Forest and Woodland○
Tehachapi Mountains○
Santa Lucia Coastal Forest and Woodland○
Interior Santa Lucia Range○
Southern Santa Lucia Range○
Paso Robles Hills and Valleys○
Salinas-Cholame Hills○
Eastern Hills○
Pleasant Valley/Kettleman Plain○
Tuscan Flows○
Upper Sacramento River Alluvium○
Grapevine Transition○
Tehachapi Foothills○
Cuyama Valley○
Carrizo Plain○
Caliente Range○
Northern Sierran Foothills○
Solomon-Purisima-Santa Ynez Hills○
Santa Maria/Santa Ynez Valleys○
Southern Sierran Foothills○
Camanche Terraces○
Clear Lake Hills and Valleys○
Napa-Sonoma-Russian River Valleys○
Sonoma-Mendocino Mixed Forest○
Bodega Coastal Hills○
Suisun Terraces and Low Hills○
East Bay Hills/Western Diablo Range○
Salinas Valley○
Northern Santa Lucia Range○
Livermore Hills and Valleys○
Leeward Hills○
Gabilan Range○
Diablo Range○
Sonoran Playas○
Marble/Salmon Mountains-Trinity Alps○
Scott Mountains○
Sutter Buttes○
Yolo/American Basin○
Stockton Basin○
Lodi Alluvium○
Kern Terraces○
South Valley Alluvium○
Antelope Plain○
Delta○
Semiarid Uplands○
High Lava Plains○
Southern California Subalpine/Alpine○
Arizona Upland/Eastern Sonoran Mountains○
Morena/Boundary Mountain Chaparral○
Western Transverse Range Montane Forest○
Fremont Pine/Fir Forest○
Southern Cascades Slope○
Likely Tableland○
Modoc/Lassen Juniper-Shrub Hills and Mountains○
Adin/Horsehead Mountains Forest and Woodland○
High Elevation Warner Mountains○
Adin/Dixie Low Hills○
Modoc Lava Flows and Buttes○
Old Cascades○

† Status: ✓ = Complete ○ = Needs Image … = Incomplete ∅ = Stub Only

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