Table 105a - Ecological Units - Subsection

HUMID TEMPERATE DOMAIN

260 Mediterranean Division

          261 California Coastal Chaparral Forest and Shrub Province

261A Central California Coast Section
Code Description
261Aa Suisun Hills and Valleys
261Ab Bay Flats
261Ac East Bay Hills-Mt. Diablo
261Ad East Bay Terraces and Alluvium
261Ae Santa Clara Valley
261Af Santa Cruz Mountains
261Ag Leeward Hills
261Ah Watsonville Plain-Salinas Valley
261Ai San Francisco Peninsula
261Aj North Coastal Santa Lucia Range
261Ak South Coastal Santa Lucia Range
261Al Santa Maria Valley



261B Southern California Coast Section
Code Description
261Ba Santa Ynez Valleys and Hills
261Bb Santa Ynez-Sulphur Mountains
261Bc Northern Channel Islands
261Bd Oxnard Plain-Santa Paula Valley
261Be Simi Valley-Santa Susana Mountains
261Bf Santa Monica Mountains
261Bg Los Angeles Plain
261Bh Southern Channel Islands
261Bi Coastal Hills
261Bj Coastal Terraces


          262 California Dry Steppe Province

262A Great Valley Section
Code Description
262Aa North Valley Alluvium
262Ab Northern Eastside Terraces
262Ac Butte Sink-Sutter Basin
262Ad Colusa Basin
262Ae Sutter Buttes
262Af River Alluvium
262Ag Hardpan Terraces
262Ah Yolo Alluvial Fans
262Ai Yolo-American Basins
262Aj Sodic Claypan Terraces
262Ak Montezuma Hills
262Al Delta
262Am Delta Basins
262An Winters Terraces
262Ao Camanche Terraces
262Ap Lodi Alluvium
262Aq Westside Alluvial Fans and Terraces
262Ar Caswell Basin
262As Manteca-Merced Alluvium
262At San Joaquin Basin
262Au Granitic Alluvial Fans and Terraces
262Av Tulare Basin
262Aw Panoche and Cantua Fans and Basins
262Ax Antelope Plain
262Ay South Valley Alluvium and Basins
262Az Elk Hills and South Valley Terraces


          263 California Coastal Steppe - Mixed Forest - Redwood Forest Province

263A Northern California Coast Section
Code Description
263Aa Cresent City Plain
263Ab Northern Franciscan
263Ac San Pablo Bay Flats
263Ad Wiregrass Ridge
263Ae Humboldt Bay Flats and Terraces
263Af Central Franciscan
263Ag Coastal Franciscan
263Ah Fort Bragg Terraces
263Ai Point Arena
263Aj Coastal Hills-Santa Rosa Plain
263Ak Point Reyes
263Al Marin Hills and Valleys
263Am Mount St. Helena Flows and Valleys


M240 Marine Regime Mountains Division

          M242 Cascade Mixed Forest - Coniferous Forest - Alpine Meadow Province

M242A Oregon and Washington Coast Ranges Section
Code Description
M242Ah No Description



M242B Western Cascades Section
Code Description
M242Be No Description
M242Bg No Description


M260 Mediterranean Regime Mountains Division

          M261 Sierran Forest - Alpine Meadows Province

M261A Klamath Mountains Section
Code Description
M261Aa Western Jurassic
M261Ab Gasquet Mountain Ultramafics
M261Ac Oregon Mountain
M261Ad Siskiyou Mountains
M261Ae Scott Bar Mountain
M261Af Lower Salmon Mountains
M261Ag Upper Salmon Mountains
M261Ah Scott Valley
M261Ai Eastern Klamath Mountains
M261Aj Upper Scott Mountains
M261Ak Lower Scott Mountains
M261Al Duzel Rock
M261Am Shoemaker Bally
M261An Red Butte
M261Ao Windy Peak
M261Ap Forks of Salmon
M261Aq North Trinity Mountain
M261Ar Trinity Mountain-Hayfork
M261As Pelletreau Ridge
M261At Trinity Alps
M261Au Rattlesnake Creek
M261Av No Description
M261Aw No Description
M261Ay No Description



M261B Northern California Coast Ranges Section
Code Description
M261Ba Eastern Franciscan
M261Bb Central Franciscan
M261Bc Stony Creek Serpentine
M261Bd Clear Lake Hills and Valleys
M261Be Konocti Flows
M261Bf Ultramafic Complex



M261C Northern California Interior Coast Ranges Section
Code Description
M261Ca Western Foothills
M261Cb Tehama Terraces
M261Cc Dunnigan Hills



M261D Southern Cascades Section
Code Description
M261Da Old Cascades
M261Db Shasta Valley
M261Dc Upper Shasta Valley
M261Dd Blacks Mountain-Susanville Peak
M261De Butte Valley
M261Df High Cascade
M261Dg McCloud Flat
M261Dh Medicine Lake Lava Flows
M261Di Medicine Lake Highlands
M261Dj Hat Creek Rim
M261Dk Parker Mountain Flats
M261Dl Shignletown-Paradise
M261Dm Lassen-Almanor



M261E Sierra Nevada Section
Code Description
M261Ea Diamond Mountains-Crystal Peak
M261Eb Fredonyer Butte-Grizzly Peak
M261Ec Frenchman
M261Ed Greenville-Graeagle
M261Ee Bucks Lake
M261Ef Granitic and Metamorphic Foothills
M261Eg Upper Foothills Metamorphic Belt
M261Eh Upper Batholith and Volcanic Flows
M261Ei Sierra Valley
M261Ej Tahoe-Truckee
M261Ek Glaciated Batholith and Volcanic Flows
M261El Tahoe Valley
M261Em Batholith and Volcanic Flows
M261En Markleeville
M261Eo Glaciated Batholith
M261Ep Lower Batholith
M261Eq Upper Batholith
M261Er Eastern Slopes
M261Es Tehachapi-Piute Mountains
M261Et Carson Range
M261Eu Kern Plateau



M261F Sierra Nevada Foothills Section
Code Description
M261Fa Tuscan Flows
M261Fb Lower Foothills Metamorphic Belt
M261Fc Lower Granitic Foothills
M261Fd Southern Granitic Foothills
M261Fe San Emigdio Mountains



M261G Modoc Plateau Section
Code Description
M261Ga Lower Klamath-Tule Lake Basins
M261Gb Devil's Garden
M261Gc Crowder Flat
M261Gd Mowitz Buttes
M261Ge Goose Lake Basin
M261Gf Warner Mountains
M261Gg Pit River Valley
M261Gh Likely tableland
M261Gi Likely Mountain
M261Gj Bald Mountain-Dixie Valley
M261Gk Horsehead Mountain
M261Gl Adin Mountains and Valleys
M261Gm Eagle Lake-Observation Peak
M261Gn Big Valley Mountains
M261Go Big Valley
M261Gp Fall River Valley
M261Gq No Description
M261Gr No Description


          M262 California Coastal Range Shrub - Forest - Meadow Province

M262A Central California Coast Ranges Section
Code Description
M262Aa Fremont-Livermore Hills and Valleys
M262Ab Western Diablo Range
M262Ac Diablo Range
M262Ad Eastern Hills
M262Ae Interior Santa Lucia Range
M262Af Gabilan Range
M262Ag Kettleman Hills and Valleys
M262Ah Paso Robles Hills and Valleys
M262Ai Carrizo Plain
M262Aj Caliente Range-Cuyama Valley
M262Ak Temblor Range



M262B Southern California Mountains and Valleys Section
Code Description
M262Ba San Rafael-Topatopa Mountains
M262Bb Northern Transverse Ranges
M262Bc Sierra Pelona-Mint Canyon
M262Bd San Gabriel Mountains
M262Be Upper San Gabriel Mountains
M262Bf Santa Ana Mountains
M262Bg San Gorgonio Mountains
M262Bh Upper San Gorgonio Mountains
M262Bi Little San Bernardino-Bighorn Mountains
M262Bj fontana Plain-Calimesa Terraces
M262Bk Perris Valley and Hills
M262Bl San Jacinto Foothills-Cahuilla Mountains
M262Bm San Jacinto Mountains
M262Bn Western Granitic Foothills
M262Bo Palomar-Cuyamaca Peak
M262Bp Desert Slopes
NA No Description


DRY DOMAIN

320 Tropical/Subtropical Division

          322 American Semi-Desert and Desert Province

322A Mojave Desert Section
Code Description
322Aa Owens Valley
322Ab Death Valley
322Ac Amargosa Desert-Pahrump Valley
322Ad Funeral Mountains-Greenwater Valley
322Ae Panamint Valley
322Af Searles Valley-Owlshead Mountains
322Ag High Desert Plains and Hills
322Ah Mojave Valley-Granite Mountains
322Ai Silurian Valley-Devil's Playground
322Aj Kingston Range-Valley Wells
322Ak Ivanpah Valley
322Al Providence Mountains-Lanfair Valley
322Am Piute Valley-Sacramento Mountains
322An Lucerne-Johnson Valleys and Hills
322Ao Bullion Mountains-Bristol Lake
322Ap Pinto Basin and Mountains
322As Beaver Dam Wash
322Av No Description



322B Sonoran Desert Section
Code Description
322Ba Cadiz-Vidal Valleys
322Bb Palen-Riverside Mountains
322Bc Chuckwalla Valley
322Bd Palo Verde Valley and Mesa
322Be Chocolate Mountains and Valleys
322Bh No Description



322C Colorado Desert Section
Code Description
322Ca Coachella Valley
322Cb Borrego Valley-West Mesa
322Cc Imperial Valley
322Cd East Mesa-Sand Hills


340 Temperate Desert Division

          341 Intermountain Semi-Desert and Desert Province

341D Mono Section
Code Description
341Da Carson Valley-Truckee Meadows
341Db Pine Nut Mountains
341Dc Antelope-Mason Valleys and Hills
341Dd Sweetwater Mountains-Pine Grove Hills
341De Bodie Hills-Excelsior Mountains
341Df Mono Valley
341Dg Wassuk Range
341Dh Crowley Flowlands
341Di Benton-Upper Owens Valleys
341Dj White Mountains
341Dk Fort Sage Mountains-Lemmon Valley
341Dl Glass Mountain
341Dm Virginia-Pah Rah Ranges



341F Southeastern Great Basin Section
Code Description
341Fa Silver Peak Mountains-Fish Lake Valley
341Fb Inyo Mountains
341Fc Saline Valley-Cottonwood Mountains
341Fd Grapevine Mountains
341Fe Cosa-Argus Ranges
341Ff Panamint Range
341Fj No Description
341Fk No Description
341Fl No Description


          342 Intermountain Semi-Desert Province

342B Northwestern Basin and Range Section
Code Description
342Ba Surprise Valley
342Bb Sheldon Range
342Bc Honey Lake Basin
342Bd Cottonwood-Skedaddle Mountains
342Be Madeline Plain
342Bf No Description
342Bi No Description