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Ansel Adams Wilderness

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Coordinates:37°41′N119°11′W / 37.683°N 119.183°W /37.683; -119.183

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Protected wilderness area in California, United States

Ansel Adams Wilderness
IUCN category Ib (wilderness area)
Banner Peak aboveThousand Island Lake
Show map of California Show map of the United States
Location	Madera /Fresno /Mono counties,California,United States
Nearest city	Fresno, CA
Coordinates	37°41′N119°11′W / 37.683°N 119.183°W /37.683; -119.183
Area	231,533 acres (936.98 km²)
Created	1964
Governing body	U.S. Forest Service

TheAnsel Adams Wilderness is a wilderness area in theSierra Nevada ofCalifornia,United States. The wilderness spans 231,533 acres (93,698 ha); 33.9% of the territory lies in theInyo National Forest, 65.8% is in theSierra National Forest, and the remaining 0.3% covers nearly all ofDevils Postpile National Monument.^[1]Yosemite National Park lies to the north and northwest, while theJohn Muir Wilderness lies to the south.

History

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The wilderness was established as part of the originalWilderness Act in 1964 as theMinarets Wilderness. The 109,500-acre (44,300 ha) Minarets Wilderness was created by enlarging and renaming the Mount Dana-Minarets Primitive Area.^[2]

In 1984, after his death, the area was expanded and renamed in memory ofAnsel Adams, well-known environmentalist and nature photographer who is famous for his black-and-whitelandscape photographs of the Sierra Nevada.

Geography and geology

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The Ansel Adams wilderness spans in elevation from 3,500 to 13,157 feet (1,067 to 4,010 m), forming the northern end of the High Sierra.^[3]

The centerpiece of the Ansel Adams wilderness is theRitter Range, which includes darkmetavolcanic glaciated mountains such asMount Ritter,Banner Peak, andThe Minarets.

Immediately to the east of the Ritter Range is the Middle Fork of theSan Joaquin River,^[3] which containsDevils Postpile, a series ofbasaltic columns that were revealed and smoothed by glacier action. The Middle Fork originates fromThousand Island Lake, at the foot of Banner Peak, one of the largest backcountry lakes in the Sierra.^[3]

To the east of the Middle Fork canyon is the true Sierra Crest, which, at roughly 10,000 feet (3,000 m) of elevation is lower than the Ritter Range.^[3] This relatively low region of the Crest allows winter storms through and cause large amounts of snowfall onMammoth Mountain, which sits in the gap. The gap also allows migration of plants and animals across the Sierra Crest.^[3]

To the west of the Ritter Range lies the canyon of the North Fork of the San Joaquin, a relatively remote and unvisited high-country area. The southern part of the wilderness contains the 3,000 feet (900 m) deep canyon of the main San Joaquin River, which flows out of the Sierra Nevada to California'sCentral Valley.^[3]

Climate

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Climate data for Gem Lake, California
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean daily maximum °F (°C)	37.1 (2.8)	38.5 (3.6)	44.5 (6.9)	50.2 (10.1)	57.6 (14.2)	64.8 (18.2)	73.2 (22.9)	71.3 (21.8)	64.5 (18.1)	54.9 (12.7)	45.8 (7.7)	38.4 (3.6)	53.4 (11.9)
Mean daily minimum °F (°C)	14.8 (−9.6)	14.7 (−9.6)	18.3 (−7.6)	24.3 (−4.3)	31.9 (−0.1)	39.6 (4.2)	47.7 (8.7)	47.2 (8.4)	40.3 (4.6)	32.9 (0.5)	25.1 (−3.8)	19.1 (−7.2)	29.7 (−1.3)
Averageprecipitation inches (mm)	3.63 (92)	3.66 (93)	2.92 (74)	1.62 (41)	0.86 (22)	0.49 (12)	0.55 (14)	0.59 (15)	0.70 (18)	1.14 (29)	2.11 (54)	3.18 (81)	21.45 (545)
Average snowfall inches (cm)	33.2 (84)	40.6 (103)	26.3 (67)	15.7 (40)	4.3 (11)	1.1 (2.8)	0 (0)	0 (0)	1.1 (2.8)	6.9 (18)	16.8 (43)	34.1 (87)	180.1 (458.6)
Source: WRCC,^[4] Period of Record: 1924-2010

Ecology

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Main article:Ecology of the Sierra Nevada

The Ansel Adams wilderness contains substantial area above treeline, at approximately 9,600 to 10,400 feet (2,900 to 3,200 m). The area above treeline containsalpine meadows andfellfields, with a large number of glacial lakes. Below treeline, the wilderness is dominated bylodgepole pine,red fir, andJeffrey pine, depending on elevation.^[5]

Alger Lakes and Mount San Joaquin in the northern end of the wilderness.

Recreation

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The wilderness contains 349 miles (562 km) of hiking trails, including portions of theJohn Muir andPacific Crest Trails.^[3] TheSierra High Route, an off-trail route described bySteve Roper, runs along the base of the Ritter Range, through the wilderness.^[6]

The Middle Fork of the San Joaquin receives the most visitors: a mandatory bus is required for visitors to reach Devils Postpile from theMammoth Mountain Ski Area during the summer.

The Minarets are a well-known area fortechnical rock climbing.^[3]

Winter brings variouscross-country ski possibilities, accessible from both Mammoth Mountain and theJune Mountain ski area.

References

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^"Ansel Adams Wilderness acreage breakdown". Wilderness.net. Archived fromthe original on July 1, 2012.
^Godfrey, Anthony (2005).The Ever-Changing View-A History of the National Forests in California. USDA Forest Service Publishers. p. 411.ISBN 1-59351-428-X.
^^a ^b ^c ^d ^e ^f ^g ^hAdkinson, Ron (2001).Wild Northern California. The Globe Pequot Press. pp. 86–93.ISBN 1-56044-781-8.
^"Gem Lake, California". Western Regional Climate Center. RetrievedOctober 20, 2024.
^Schoenherr, Allan A. (1992).A Natural History of California. University of California Press.ISBN 0-520-06922-6.
^Roper, Steve (1997).Sierra High Route: Traversing Timberline Country.ISBN 0-89886-506-9.

External links

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Wikimedia Commons has media related to:
Ansel Adams Wilderness (category)

Protected areas of California

National Park System

Parks	Channel Islands Death Valley Joshua Tree Kings Canyon Lassen Volcanic Pinnacles Redwood Sequoia Yosemite
Preserves	Mojave
Monuments	Cabrillo Castle Mountains César E. Chávez Devils Postpile Lava Beds Muir Woods Tule Lake
Seashores	Point Reyes
Historical Parks	Rosie the Riveter World War II Home Front San Francisco Maritime
Historic Sites	Eugene O'Neill Fort Point John Muir Manzanar
Memorials	Port Chicago Naval Magazine
Recreation Areas	Golden Gate Santa Monica Mountains Whiskeytown–Shasta–Trinity

California State Parks

Parks	Ahjumawi Lava Springs Andrew Molera Angel Island Año Nuevo Anza-Borrego Desert Arthur B. Ripley Desert Woodland Bidwell–Sacramento River Big Basin Redwoods Border Field Bothe-Napa Valley Burton Creek Butano Calaveras Big Trees Castle Crags Castle Rock Caswell Memorial China Camp Chino Hills Clear Lake Coast Dairies Crystal Cove Cuyamaca Rancho D. L. Bliss Del Norte Coast Redwoods Donner Memorial Dos Rios Ed Z'berg Sugar Pine Point Emerald Bay The Forest of Nisene Marks Fort Ord Dunes Fremont Peak Garrapata Gaviota Great Valley Grasslands Grizzly Creek Redwoods Grover Hot Springs Hearst San Simeon Hendy Woods Henry Cowell Redwoods Henry W. Coe Humboldt Lagoons Humboldt Redwoods Jedediah Smith Redwoods Julia Pfeiffer Burns Leo Carrillo Limekiln MacKerricher Malibu Creek Manchester McArthur–Burney Falls Memorial McLaughlin Eastshore Mendocino Headlands Mendocino Woodlands Montaña de Oro Morro Bay Mount Diablo Mount San Jacinto Mount Tamalpais Navarro River Redwoods Pacheco Palomar Mountain Pfeiffer Big Sur Pillar Point Bluff Placerita Canyon Plumas-Eureka Point Mugu Portola Redwoods Prairie Creek Redwoods Red Rock Canyon Richardson Grove Rio de Los Angeles Robert Louis Stevenson Russian Gulch Saddleback Butte Salt Point Samuel P. Taylor San Bruno Mountain Sinkyone Wilderness South Yuba River Sue-meg Sugarloaf Ridge Sutter Buttes Tolowa Dunes Tomales Bay Topanga Trione-Annadel Van Damme Washoe Meadows Wilder Ranch
Natural Reserves	Antelope Valley California Poppy Armstrong Redwoods Azalea Caspar Headlands John B. Dewitt Redwoods John Little Jug Handle Kruse Rhododendron Los Osos Oaks Mailliard Redwoods Mono Lake Tufa Montgomery Woods Point Lobos Smithe Redwoods Torrey Pines Tule Elk
Marine Reserves	Albany Anacapa Island SMR Asilomar Begg Rock Big Creek Bodega Head Cabrillo Carmel Pinnacles Carrington Point Del Mar Landing Elkhorn Slough Emeryville Crescent Estero de Limantour and Drakes Estero Fitzgerald Gerstle Cove Gull Island Harris Point Judith Rock Laguna Beach Long Point Lovers Point Montara and Pillar Point Moro Cojo Slough Morro Bay Natural Bridges Piedras Blancas Point Arena Point Buchon Point Cabrillo Point Dume Point Lobos Point Reyes Point Sur Richardson Rock Russian River Santa Barbara Island Scorpion Sea Lion Gulch Skunk Point South Cape Mendocino Stewarts Point Vandenberg
Historic Parks	Anderson Marsh Antelope Valley Indian Museum Bale Grist Mill Benicia Capitol Bidwell Mansion Bodie California Citrus California State Indian Museum Chumash Painted Cave Colonel Allensworth Columbia El Presidio de Santa Barbara Empire Mine Folsom Powerhouse Fort Humboldt Fort Ross Fort Tejon Governor's Mansion Hearst Castle Indian Grinding Rock Jack London La Purísima Mission Leland Stanford Mansion Los Angeles Los Encinos Malakoff Diggins Marconi Conference Center Marsh Creek Marshall Gold Discovery Monterey Old Sacramento Old Town San Diego Olompali Pigeon Point Light Station Pío Pico Point Sur Railtown 1897 Rancho Petaluma Adobe San Juan Bautista San Pasqual Battlefield Santa Cruz Mission Santa Susana Pass Shasta Sonoma Sutter's Fort Tomo-Kahni Wassama Round House Watts Towers Weaverville Joss House Will Rogers William B. Ide Adobe Woodland Opera House
Beaches	Asilomar Bean Hollow Bolsa Chica Cardiff Carlsbad Carmel River Carpinteria Caspar Headlands Cayucos Corona del Mar Crown Memorial Dockweiler Doheny El Capitán Emma Wood Gray Whale Cove Greenwood Half Moon Bay Huntington Leucadia Lighthouse Field Little River Malibu Lagoon Mandalay Manresa Marina McGrath Montara Monterey Moonlight Morro Strand Moss Landing Natural Bridges New Brighton Pacifica Pelican Pescadero Pismo Point Dume Point Sal Pomponio Refugio Robert H. Meyer Memorial Salinas River San Buenaventura San Clemente San Elijo San Gregorio San Onofre Santa Monica Schooner Gulch Seacliff Silver Strand Sonoma Coast South Carlsbad Sunset Thornton Torrey Pines Trinidad Twin Lakes Westport-Union Landing Will Rogers William Randolph Hearst Memorial Zmudowski
Recreation Areas	Admiral William Standley Auburn Austin Creek Benbow Benicia Bethany Reservoir Brannan Island Candlestick Point Castaic Lake Colusa-Sacramento River Folsom Lake Franks Tract George J. Hatfield Harry A. Merlo Kenneth Hahn Kings Beach Lake Del Valle Lake Oroville Lake Perris Lake Valley Martial Cottle McConnell Millerton Lake Picacho Providence Mountains Salton Sea San Luis Reservoir Silverwood Lake Standish-Hickey Tahoe Turlock Lake Woodson Bridge
Vehicular Recreation Areas	Carnegie Clay Pit Heber Dunes Hollister Hills Hungry Valley Oceano Dunes Ocotillo Wells Prairie City
Other	Burleigh H. Murray Ranch California State Capitol Museum California State Mining and Mineral Museum California State Railroad Museum Castro Adobe Delta Meadows Estero Bay Hatton Canyon Indio Hills Palms Point Cabrillo Light Ishxenta State Park Point Montara Light Reynolds Wayside Campground San Timoteo Canyon Stone Lake Verdugo Mountains Ward Creek Wildwood Canyon

National Forests and Grasslands

National Forests and Grasslands	Angeles Butte Valley NG Cleveland Eldorado Humboldt–Toiyabe Inyo Klamath Lake Tahoe Basin Lassen Los Padres Mendocino Modoc Plumas Rogue River–Siskiyou San Bernardino Sequoia Shasta–Trinity Sierra Six Rivers Stanislaus Tahoe
National Wilderness Preservation System	Agua Tibia Ansel Adams Bucks Lake Caribou Carson–Iceberg Castle Crags Cucamonga Desolation Dick Smith Dinkey Lakes Emigrant Golden Trout Hoover Inyo Mountains Ishi Jennie Lakes John Muir Kaiser Magic Mountain Marble Mountain Mokelumne Mount Lassic Mount Shasta North Fork Pine Creek San Gabriel San Jacinto San Rafael Sanhedrin Sespe Siskiyou Snow Mountain South Fork Eel River South Sierra South Warner Thousand Lakes Trinity Alps Ventana Yolla Bolly–Middle Eel Yuki
National Monuments and Recreation Areas	Giant Sequoia National Monument San Gabriel Mountains National Monument Sand to Snow National Monument Santa Rosa and San Jacinto Mountains National Monument Sáttítla Highlands National Monument Smith River National Recreation Area Whiskeytown–Shasta–Trinity National Recreation Area

State Forests
Boggs Mountain Demonstration Ellen Pickett Jackson Demonstration Las Posadas LaTour Demonstration Mount Zion Demonstration Mountain Home Demonstration Soquel Demonstration

National Wildlife Refuges

State Wildlife Areas

Wildlife Areas	Antelope Valley Ash Creek Bass Hill Battle Creek Big Lagoon Big Sandy Biscar Butte Valley Buttermilk Country Cache Creek Camp Cady Cantara/Ney Springs Cedar Roughs Cinder Flats Collins Eddy Colusa Bypass Coon Hollow Cottonwood Creek Crescent City Marsh Crocker Meadows Daugherty Hill Decker Island Doyle Dutch Flat Eastlker River Eel River Elk Creek Wetlands Elk River Fay Slough Feather River Fitzhugh Creek Fremont Weir Grass Lake Gray Lodge Green Creek Grizzly Island Hallelujah Junction Heenan Lake Hill Slough Hollenbeck Canyon Honey Lake Hope Valley Horseshoe Ranch Imperial Indian Valley Kelso Peak and Old Dad Mountains Kinsman Flat Knoxville Laguna Lake Berryessa Lake Earl Lake Sonoma Little Panoche Reservoir Los Banos Lower Sherman Island Mad River Slough Marble Mountains Mendota Merrill's Landing Miner Slough Monache Meadows Morro Bay Moss Landing Mouth of Cottonwood Creek Napa-Sonoma Marshes North Grasslands O'Neill Forebay Oroville Petaluma Marsh Pickel Meadow Pine Creek Point Edith Putah Creek Rector Reservoir Red Lake Rhode Island Sacramento River San Felipe Valley San Jacinto San Luis Obispo San Luis Reservoir San Pablo Bay Santa Rosa Shasta Valley Silver Creek Slinkard/Little Antelope Smithneck Creek South Fork Spenceville Surprise Valley Sutter Bypass Tehama Truckee River Upper Butte Basin Volta Warner Valley Waukell Creek West Hilmar Westlker River White Slough Willow Creek Yolo Bypass
Ecological Reserves	Albany Mudflats Alkali Sink Allensworth Atascadero Creek Marsh Bair Island Baldwin Lake Batiquitos Lagoon Blue Sky Boden Canyon Boggs Lake Bolsa Chica Bonny Doon Buena Vista Lagoon Butler Slough Butte Creek Canyon Butte Creek House Buttonwillow By Day Creek Calhoun Cut Canebrake Carlsbad Highlands Carmel Bay Carrizo Canyon Carrizo Plains China Point Clover Creek Coachella Valley Coal Canyon Corte Madera Marsh Crestridge Dairy Mart Ponds Dales Lake Del Mar Landing Eden Landing Elkhorn Slough Estelle Mountain Fall River Mills Fish Slough Fremont Valley Goleta Slough Indian Joe Spring Kaweah Kerman King Clone Laguna Laurel Loch Lomond Vernal Pool Lokern Magnesia Spring Marin Islands Mattole River McGinty Mountain Morro Dunes Morro Rock Napa River North Table Mountain Oasis Spring Panoche Hills Peytonia Slough Phoenix Vernal Pools Pine Hill Piute Creek Pleasant Valley Rancho Jamul Redwood Shores River Springs Lakes Saline Valley San Dieguito Lagoon San Elijo Lagoon San Felipe Creek San Joaquin River Santa Rosa Plateau Springville Stone Corral Sycamore Canyon Sycuan Peak Thomes Creek Tomales Bay Upper Newport Bay Watsonville Slough West Mojave Desert Woodbridge Yaudanchi
Marine Protected Areas	Abalone Cove and Point Vicente Anacapa Island SMCA Año Nuevo Arrow Point to Lion Head Point Batiquitos Lagoon Big Creek Bodega Head Bolsa Chica Cambria Campus Point Carmel Bay Cat Harbor Crystal Cove Dana Point Duxbury Reef Edward F. Ricketts Elkhorn Slough Estero Americano Estero de Limantour and Drakes Estero Estero de San Antonio Fagan Marsh Famosa Slough Farnsworth Onshore and Offshore Goleta Slough Greyhound Rock Lovers Cove and Casino Point MacKerricher Marin Islands Morro Bay Naples Pacific Grove Marine Gardens Painted Cave Piedras Blancas Point Arena Point Buchon Point Dume Point Reyes Point Sur Portuguese Ledge Pyramid Point Robert E. Badham Robert W. Crown Russian Gulch Russian River Salt Point San Diego-Scripps San Dieguito Lagoon San Elijo Lagoon Saunders Reef Sea Lion Cove Sonoma Coast Soquel Canyon South La Jolla South Point Southeast Farallon Island Stewarts Point Swami's Tijuana River Mouth Upper Newport Bay Van Damme Vandenberg White Rock (Cambria)

Bureau of Land Management National Conservation Lands

National Monuments	Berryessa Snow Mountain California Coastal Carrizo Plain Cascade–Siskiyou Chuckwalla Fort Ord Mojave Trails Sand to Snow Santa Rosa and San Jacinto Mountains
National Conservation Areas	California Desert King Range
Wilderness Areas	Argus Range Big Maria Mountains Bigelow Cholla Garden Bighorn Mountain Black Mountain Bright Star Bristol Mountains Cadiz Dunes Carrizo Gorge Chanchelulla Chemehuevi Mountains Chimney Peak Chuckwalla Mountains Chumash Cleghorn Lakes Clipper Mountain Coso Range Coyote Mountains Darwin Falls Dead Mountains Dick Smith El Paso Mountains Fish Creek Mountains Funeral Mountains Garcia Golden Valley Grass Valley Headwaters Forest Reserve Hollow Hills Ibex Indian Pass Inyo Mountains Jacumba Kelso Dunes Kiavah Kingston Range Little Chuckwalla Mountains Little Picacho Machesna Mountain Malpais Mesa Manly Peak Matilija Mecca Hills Mesquite Newberry Mountains Nopah Range North Algodones Dunes North Mesquite Mountains Old Woman Mountains Orocopia Mountains Otay Mountain Owens Peak Pahrump Valley Palen/McCoy Palo Verde Mountains Picacho Peak Piper Mountain Piute Mountains Red Buttes Resting Spring Range Rice Valley Riverside Mountains Rodman Mountains Sacatar Trail Saddle Peak Hills San Gorgonio Santa Lucia Santa Rosa Sawtooth Mountains Sespe Sheephole Valley South Nopah Range Stateline Stepladder Mountains Surprise Canyon Sylvania Mountains Trilobite Turtle Mountains Whipple Mountains

National Marine Sanctuaries
Channel Islands Chumash Heritage Cordell Bank Greater Farallones Monterey Bay

National Estuarine Research Reserves
Elkhorn Slough San Francisco Bay Tijuana River

National Fish Hatcheries
Coleman

University of California Natural Reserve System

Private Conservation Land Trusts

Heritage registers: National Natural Landmarks

Sierra Nevada

Mountains

Peaks >14,000 ft	Whitney Williamson North Palisade Sill Russell Split Langley Tyndall Muir Middle Palisade
Northern peaks	Lola Castle Granite Chief Rose Tallac Pyramid Freel
Central peaks	Red Lake Round Top Mokelumne Sonora Leavitt Dana Lyell Banner Ritter Mammoth
Southern peaks	Humphreys Tom Bear Creek Spire Darwin Agassiz Kaweah Brewer Olancha Kern Double
Climbing	Peak list First ascents

Passes

Rivers

Lakes

Protected
areas

National parks and monuments	Kings Canyon Sequoia Yosemite Devils Postpile Giant Sequoia
National forests	Eldorado Humboldt–Toiyabe Inyo Lake Tahoe Basin Lassen Plumas Sequoia Sierra Stanislaus Tahoe
Wilderness areas	Ansel Adams Bright Star Bucks Lake Carson–Iceberg Chimney Peak Dinkey Lakes Domeland Emigrant Golden Trout Hoover Ishi Jennie Lakes John Krebs John Muir Kaiser Kiavah Mokelumne Monarch Mount Rose Owens Peak Owens River Headwaters Sacatar Trail Sequoia-Kings Canyon Yosemite
State parks	Burton Creek Calaveras Big Trees D. L. Bliss Donner Memorial Ed Z'berg Sugar Pine Point Emerald Bay Grover Hot Springs Lake Tahoe Nevada Plumas-Eureka South Yuba River Van Sickle

Communities

Ski areas

Trails

v t e Ansel Adams
Photographs	Lodgepole Pines, Lyell Fork of the Merced River (1921) Monolith, the Face of Half Dome (1927) Clearing Winter Storm, Yosemite National Park (c. 1937) Moonrise, Hernandez, New Mexico (1941) Evening, McDonald Lake, Glacier National Park (1942) The Tetons and the Snake River (1942) Winter Sunrise, Sierra Nevada, from Lone Pine, California (1944) Aspens, Northern New Mexico (1958)
Portfolios	Parmelian Prints of the High Sierras (1927)
Books	Taos Pueblo (1931) (withMary Hunter Austin) Born Free and Equal (1944)
Related	Zone System Groupf/64 Ansel Adams: A Documentary Film (2002) Ansel Adams Award for Conservation Photography Ansel Adams Award (The Wilderness Society) Ansel Adams Wilderness The Land of Little Rain (1950 edition)