Wilderness Study Area Detail Table

The tables below identify the BLM’s 491 Wilderness Study Areas by State. For State-level summary information visit the Wilderness Areas and Wilderness Study Areas Summary Table.

Most Wilderness Study Areas were identified and established under provisions of Section 603 of the Federal Land Policy and Management Act of 1976. Detailed reports are available on the BLM State Wilderness Study Documents page.

Alaska: 1 Wilderness Study Area

Wilderness Study Area	Date Established	Acres
Central Arctic Management Area	Dec-80	260,000

Arizona: 2 Wilderness Study Areas

Wilderness Study Area	Date Established	Acres
Baker Canyon		4,812
Cactus Plain	Jun-05	59,118

California: 62 Wilderness Study Areas

Wilderness Study Area	Date Established	Acres
Bear Canyon	Jan-79	318
Bear Mountain	Jan-79	4,023
Beauty Mountain	Jul-91	3,830
Big Butte	Jul-91	1,500
Bitterbrush ISA	Jul-91	640
Black Mountain	Dec-79	150
Bodie	Jul-91	16,482
Bodie Mountain	Jul-91	23,934
Brushy Mountain / English Ridge Subunit	Nov-24	5,500
Buffalo Hills	Jul-91	856
Caliente Mountain	Jul-91	17,590
Carrizo Gorge	Jul-91	890
Carson Iceberg	Jul-91	550
Casa Diablo	Jul-91	5,325
Cerro Gordo	Jul-91	5,800
Chidago Canyon	Jul-91	19,702
Crater Mountain	Jul-91	7,069
Dry Valley Rim	Jul-91	18,131
Eden Valley	Jul-91	6,166
Excelsior	Jul-91	9,383
Fish Slough	Jul-91	14,700
Five Springs	Jul-91	47,823
Garcia Mountain	Jul-91	80
Hauser Mountain	Jul-91	5,540
Independence Creek	Jul-91	6,458
Lava	Jul-91	10,770
Machesna	Jul-91	70
Merced River	Jul-91	12,959
Milk Ranch/Case Mountain	Jul-91	8,970
Moses	Dec-79	558
Mount Biedeman	Jul-91	13,069
Owens Peak	Jul-91	310
Panoche Hills North	Jul-91	6,631
Panoche Hills South	Jul-91	11,229
Pit River Canyon	Jul-91	11,724
Piute Cypress ISA	Jul-91	3,453
Red Mountain	Nov-24	320
Rockhouse (a)	Jul-91	130
Rocky Creek/Cache Creek	Jul-91	6,570
Sacatar Meadows	Jul-91	140
San Benito Mountain ISA	Jul-91	1,500
San Felipe Hills	Jul-91	5,325
San Ysidro Mountain	Jul-91	2,125
Sawtooth Mountains A	Jul-91	3,883
Sawtooth Mountains C	Jul-91	600
Scodie	Dec-79	420
Sheep Ridge	Jul-91	5,102
Skedaddle	Jul-91	61,421
Slinkard	Jul-91	6,268
South Warner Contiguous	Jul-91	4,330
Southern Inyo	Jul-91	4,900
Symmes Creek	Jul-91	7,694
Table Mountain	Jul-91	1,018
Thatcher Ridge	Jul-91	130
Timbered Crater & Baker Cypress ISA	Jul-91	17,896
Trinity Alps Subunit	Nov-24	220
Tule Mountain	Jul-91	16,998
Tunnison Mountain	Jul-91	19,884
Twin Peaks	Jul-91	25,677
Volcanic Tablelands	Jul-91	12,499
White Mountains	Oct-94	1,700
Yolla Bolly Contiguous	Jul-91	646

Colorado: 55 Wilderness Study Areas

Wilderness Study Area	Date Established	Acres
Adobe Badlands	Jan-93	10,425
American Flats	Jan-93	3,306
Ant Hills	Jan-93	4,354
Beaver Creek	Jan-93	26,150
Bill Hare Gulch	Jan-93	76
Black Canyon	Nov-80	1,430
Black Mountain	Jan-93	9,932
Black Ridge Canyons	Jan-93	783
Black Ridge Canyons West	Jan-93	571
Browns Canyon	Jan-93	6,614
Bull Canyon	Jan-93	11,777
Bull Gulch	Jan-93	15,000
Cahone Canyon	Jan-93	8,960
Camel Back	Jan-93	10,402
Castle Peak	Jan-93	11,940
Castle Peak Addition	Oct-24	7,000
Chew Winter Camp	Jan-93	1,320
Cross Canyon	Jan-93	11,580
Cross Mountain	Jan-93	14,081
Demaree Canyon	Jan-93	21,050
Diamond Breaks	Jan-93	31,480
Dolores River Canyon	Jan-93	28,668
Dominguez Canyon	Jan-93	2,086
Eagle Mountain	Jan-93	330
Hack Lake	Jan-93	10
Handies Peak	Jan-93	16,664
High Mesa Grassland	Jan-93	680
Little Book Cliffs	Jan-93	26,525
Lower Grape Creek	Jan-93	11,220
McIntyre Hills	Jan-93	16,650
McKenna Peak	Jan-93	19,398
Menefee Mountain	Jan-93	7,089
Needle Rock	Jan-93	80
North Sand Hills	Jan-93	791
Oil Spring Mountain	Jan-93	17,740
Papa Keal	Jan-93	366
Peterson Draw	Jan-93	5,160
Platte River Contiguous	Jan-93	30
Powderhorn	Jan-93	7,022
Rare Lizard and Snake	Jan-93	443
Red Cloud Peak	Jan-93	36,722
San Luis Hills	Jan-93	10,240
Sewemup Mesa	Jan-93	19,140
Sego Lily	Jan-93	4,611
Skull Creek	Jan-93	13,740
The Palisade	Jan-93	26,050
Troublesome	Jan-93	8,250
Upper Grape Creek	Jan-93	10,200
Vale of Tears	Jan-93	7,420
Weber Mountain	Jan-93	6,303
Weminuche Contiguous	Jan-93	1,840
West Cold Spring	Jan-93	14,482
Whitehead Gulch	Jan-93	1,500
Willow Creek	Jan-93	13,368
Windy Gulch	Sep-92	12,274

Idaho: 40 Wilderness Study Areas

Wilderness Study Area	Date Established	Acres
Appendicitis Hill	Sep-92	25,376
Bear Den Butte	Sep-92	5,419
Black Butte	Sep-92	3,893
Black Canyon (I)	Sep-92	10,609
Black Canyon (II)	Sep-92	5,534
Borah Peak	Sep-92	3,941
Box Creek	Sep-92	439
Burnt Creek	Sep-92	23,829
Cedar Butte	Sep-92	36,390
China Cup Butte ISA	Feb-76	166
Crystal Lake	Sep-92	8,893
Deer Creek	Sep-92	8,071
Eighteen Mile	Sep-92	25,015
Friedman Creek	Sep-92	9,424
Goldburg	Sep-92	3,946
Gooding City of Rocks East	Sep-92	14,317
Gooding City of Rocks West	Sep-92	6,656
Grandmother Mountain	Sep-92	11,825
Great Rift ISA	Feb-76	46,632
Hawley Mountain	Sep-92	16,807
Hell's Half Acre	Sep-92	67,751
Henry's Lake	Sep-92	337
King Hill Creek	Sep-92	28,218
Lava	Sep-92	23,276
Little City of Rocks	Sep-92	6,606
Little Deer	Sep-92	13,936
Little Wood River	Sep-92	4,183
Lower Salmon Falls Creek	Sep-92	3,282
Marshall Mountain	Sep-92	5,527
Petticoat Peak	Sep-92	11,192
Raven's Eye	Sep-92	31,319
Sand Butte	Sep-92	21,399
Sand Mountain	Sep-92	21,709
Selkirk Crest	Sep-92	622
Shale Butte	Sep-92	15,560
Shoshone	Sep-92	6,757
Snake River Islands	Sep-92	341
Snowhole Rapids	Sep-92	5,336
White Knob Mountains	Sep-92	10,047
Worm Creek	Jan-93	39

Montana: 35 Wilderness Study Areas

Wilderness Study Area	Date Established	Acres
Antelope Creek	Jan-93	12,350
Axolotl Lakes	Jan-93	7,804
Bell/Limekiln Canyons	Jan-93	9,650
Big Horn Tack-On	Jan-93	2,470
Billy Creek	Jan-93	3,450
Bitter Creek	Jan-93	59,660
Black Sage	Jan-93	5,926
Blacktail Mountains	Jan-93	17,479
Bridge Coulee	Jan-93	5,900
Burnt Lodge	Jan-93	13,730
Burnt Timber Canyon	Jan-93	3,430
Centennial Mountains	Jan-93	27,691
Cow Creek	Jan-93	34,050
Dog Creek South	Jan-93	5,150
East Fork Blacktail Deer Creek	Jan-93	6,230
Elkhorn	Jan-93	3,585
Ervin Ridge	Jan-93	10,200
Farlin Creek	Jan-93	1,139
Henneberry Ridge	Jan-93	9,806
Hidden Pasture Creek	Jan-93	15,509
Hoodoo Mountain	Jan-93	11,380
Humbug Spires	Jan-93	11,175
Musselshell Breaks	Jan-93	8,650
Pryor Mountain	Jan-93	12,575
Quigg West	Jan-93	520
Ruby Mountains	Jan-93	26,611
Seven Blackfoot	Jan-93	20,250
Sleeping Giant/Sheep Creek	Jan-93	10,454
Square Butte	Jan-93	1,947
Stafford	Jan-93	4,800
Terry Badlands	Jan-93	44,910
Twin Coulee	Jan-93	6,870
Wales Creek	Jan-93	11,580
Woodhawk	Jan-93	8,100
Yellowstone River Island	Jan-93	53

Nevada: 60 Wilderness Study Areas

Wilderness Study Area	Date Established	Acres
Antelope Range	Sep-92	43,700
Augusta Mountains	Sep-92	23,580
Bad Lands	Sep-92	9,426
Blue Eagle	May-92	59,560
Bluebell	May-92	55,665
Buffalo Hills	May-92	45,287
Burbank Canyons	May-92	13,395
Cedar Ridge	Sep-92	10,009
China Mountain	May-92	10,358
Disaster Peak	May-92	13,200
Dry Valley Rim	Sep-92	76,177
Fandango	May-92	530
Five Springs	May-92	1,383
Fox Range	Sep-92	75,404
Gabbs Valley Range	May-92	79,600
Goshute Canyon	May-92	362
Goshute Peak	May-92	69,770
Grapevine Mountains	May-92	66,800
Kawich	May-92	54,320
Lahonton Cutthroat Trout	May-92	12,316
Little Humboldt River	Sep-92	42,213
Massacre Rim	May-92	101,290
Million Hills	May-92	21,296
Morey Peak	May-92	5,070
Mount Limbo	May-92	23,752
Mount Stirling	Sep-92	5,600
Mountain Meadow ISA	May-92	22
North Fork of the Little Humboldt River	May-92	69,683
Owyhee Canyon	May-92	21,875
Palisade Mesa	Sep-92	99,550
Park Range	May-92	47,268
Pigeon Spring	May-92	3,575
Pinyon Joshua ISA	May-92	560
Pole Creek	May-92	12,969
Poodle Mountain	May-92	142,050
Pueblo Mountains	May-92	600
Queer Mountain	May-92	81,550
Rawhide Mountain	May-92	64,360
Red Spring	May-92	7,847
Resting Springs	May-92	3,850
Riordan's Well	May-92	57,002
Roberts Mountain	May-92	15,090
Rough Hills	May-92	6,685
Selenite Mountains	May-92	32,041
Sheldon Contiguous	Sep-92	23,700
Silver Peak Range	May-92	33,900
Simpson Park	Sep-92	49,670
Skedaddle	May-92	589
South Fork Owyhee River	May-92	7,842
South Pequop	May-92	41,090
South Reveille	May-92	106,200
The Wall	May-92	38,000
Tobin Range	May-92	13,107
Twin Peaks	May-92	65,114
Virgin Mountain ISA	May-92	6,560
Wall Canyon	Jul-92	46,305

New Mexico: 48 Wilderness Study Areas

Wilderness Study Area	Date Established	Acres
Alama Hueco Mountains	Sep-92	16,264
Antelope	Sep-92	20,710
Apache Box	Sep-92	932
Apache Box Add-On		6,229
Big Hatchet Mountains	Sep-92	65,872
Blue Creek	Sep-92	14,896
Brokeoff Mountains	Sep-92	31,606
Cabezon	Dec-01	8,159
Canyons	Sep-92	3,930
Carrizozo Lava Flow	Sep-92	10,690
Cedar Mountains	Sep-92	14,911
Chain of Craters	Dec-87	18,300
Chamisa	Sep-92	16,602
Continental Divide	Sep-92	68,761
Cooke's Range	Sep-92	20,248
Cowboy Spring	Sep-92	6,699
Culp Canyon	Sep-92	10,937
Devil's Backbone	Sep-92	8,904
Devil's Den Canyon	Sep-92	320
Devil's Reach		860
Eagle Peak	Sep-92	43,960
El Malpais	Sep-92	21,300
Empedrado	Sep-92	9,007
Florida Mountains	Sep-92	22,336
Gila Lower Box	Sep-92	8,555
Gray Peak	Sep-92	14,678
Guadalupe Canyon	Sep-92	4,146
Horse Mountain	Sep-92	5,032
Hoverrocker	Sep-92	22
Ignacio Chavez	Sep-92	33,609
Jornada del Muerto	Sep-92	31,147
La Lena	Sep-92	11,718
Little Black Peak	Sep-92	15,469
Lonesome Ridge	Sep-92	3,505
Manzano	Sep-92	881
Mathers	Sep-92	362
McKittrick Canyon	Sep-92	200
Mesita Blanca	Sep-92	19,414
Mudgetts	Sep-92	2,941
Ojito	Sep-92	124
Peloncillo Mountains	Sep-92	4,061
Petaca Pinta	Sep-92	11,668
Presilla	Sep-92	8,680
Rio Chama	Sep-92	12,671
Sierra de las Canas	Sep-92	12,838
Sierra Ladrones	Sep-92	45,308
Stallion	Sep-92	24,238
Veranito	Sep-92	7,206
West Potrillo Mountains	Sep-92	4,100

Oregon: 87 Wilderness Study Areas

Wilderness Study Area	Date Established	Acres
Abert Rim	Jul-92	25,105
Aldrich Mountain	Jul-92	9,127
Alvord Desert	Jul-92	236,276
Basque Hills	Jul-92	140,271
Beaver Dam Creek	Jul-92	19,080
Blitzen River	Jul-92	31,914
Blue Canyon	Jul-92	12,581
Bowden Hills	Jul-92	59,031
Brewer Spruce	Jul-92	208
Bridge Creek	Jul-92	14,322
Camp Creek	Jul-92	19,880
Castle Rock	Jul-92	6,151
Cedar Mountain	Jul-92	33,433
Clarks Butte	Jul-92	31,291
Cottonwood Creek	Jul-92	8,110
Cougar Well	Jul-92	19,345
Deschutes Canyon - Steelhead Falls	Jul-92	2,504
Devil's Garden Lava Bed	Jul-92	28,163
Diablo Mountain	Jul-92	118,693
Disaster Peak	Jul-92	17,376
Douglas-Fir	Jul-92	579
Dry Creek	Jul-92	23,353
Dry Creek Buttes	Jul-92	51,285
East Alvord	Jul-92	22,142
East Lava Field	Jul-92	28,673
Fifteenmile Creek	Jul-92	50,352
Fish Creek Rim	Jul-92	19,141
Four Craters Lava Bed	Jul-92	12,474
Gerry Mountain	Jul-92	22,289
Gold Creek	Jul-92	13,591
Guano Creek	Jul-92	10,557
Hampton Butte	Jul-92	10,246
Hawk Mountain	Jul-92	69,741
Heath Lake	Jul-92	21,199
High Steens	Jul-92	14,092
Home Creek	Jul-92	1,178
Homestead	Jul-92	7,615
Honeycombs	Jul-92	38,771
Indian Creek	Jul-92	211
Jordan Craters	Jul-92	27,761
Little Sink	Jul-92	80
Lookous Butte	Jul-92	66,194
Lost Forest	Jul-92	8,084
Lower John Day	Jul-92	25,406
Lower Owyhee Canyon	Jul-92	74,767
Lower Stonehouse	Jul-92	7,460
Mahogany Ridge	Jul-92	27,365
Malheur River-Bluebucket Creek	Jul-92	5,543
McGraw Creek	Jul-92	505
Mountain Lakes	Jul-92	340
North Fork	Jul-92	11,398
North Pole Ridge	Jul-92	7,317
Oregon Canyon	Jul-92	42,071
Orejana Canyon	Jul-92	24,147
Owyhee Breaks	Jul-92	13,108
Owyhee River Canyon	Jul-92	187,344
Palomino Hills	Jul-92	54,256
Pats Cabin		9,817
Pine Creek	Jul-92	211
Pueblo Mountains	Jul-92	73,433
Red Mountain	Jul-92	15,649
Rincon	Jul-92	108,485
Saddle Butte	Jul-92	85,766
Sage Hen Hills	Jul-92	7,974
Sand Dunes	Jul-92	16,478
Sand Hollow	Jul-92	9,368
Sheep Gulch	Jul-92	730
Sheep Mountain	Jul-92	7,247
Sheepshead Mountains	Jul-92	52,793
Slocum Creek	Jul-92	7,530
South Fork	Jul-92	20,341
South Fork Donner Und Blitzen	Jul-92	27,980
Spaulding	Jul-92	68,411
Sperry Creek	Jul-92	5,296
Stonehouse	Jul-92	22,763
Sutton Mountain		28,878
Table Mountain	Jul-92	40,051
Thirtymile	Jul-92	7,624
Twelvemile Creek	Jul-92	28,111
Upper Leslie Gulch	Jul-92	2,911
Upper West Little Owyhee	Jul-92	61,489
West Peak	Jul-92	8,593
Western Juniper	Jul-92	609
Wild Horse Basin	Jul-92	12,967
Wildcat Canyon	Jul-92	34,746
Willow Creek	Jul-92	29,853
Winter Range	Jul-92	15,501

Utah: 77 Wilderness Study Areas

Wilderness Study Area	Date Established	Acres
Behind the Rocks	Jun-92	13,065
Black Ridge Canyon West	Jun-92	52
Book Cliffs Mountain Browse	Jun-92	399
Bridger Jack Mesa	Jun-92	6,333
Bull Canyon	Jun-92	599
Bull Mountain	Jun-92	13,138
Burning Hills	Jun-92	65,710
Butler Wash	Jun-92	24,277
Canaan Mountain	Jun-92	4,985
Carcass Canyon	Jun-92	48,628
Cheesebox Canyon	Jun-92	14,831
Coal Canyon	Jun-92	60,755
Conger Mountain	Jun-92	20,161
Cross Canyon	Jun-92	949
Daniels Canyon	Jun-92	2,516
Dark Canyon	Jun-92	67,825
Death Ridge	Jun-92	66,286
Deep Creek Mountains	Jun-92	79,144
Desolation Canyon	Jun-92	162,472
Devil's Garden	Jun-92	633
Diamond Breaks	Jun-92	3,926
Dirty Devel	Jun-92	71,883
Escalante Canyon Tract 1	Jun-92	364
Escalante Canyons Tract 5	Jun-92	761
Fiddler Butte	Jun-92	73,360
Fifty Mile Mountain	Jun-92	160,833
Fish Creek Canyon	Jun-92	46,102
Fish Springs	Jun-92	57,609
Floy Canyon	Jun-92	72,282
Flume Canyon	Jun-92	50,628
Fremont Gorge	Jun-92	2,843
French Spring-Happy Canyon	Jun-92	24,306
Grand Gulch	Jun-92	105,213
Horseshoe Canyon (North)	Jun-92	2,042
Horseshoe Canyon (South)	Jun-92	39,842
Howell Peak	Jun-92	27,545
Indian Creek	Jun-92	6,554
Jack Canyon	Jun-92	7,203
King Top	Jun-92	92,847
Little Rockies	Jun-92	40,733
Lost Spring Canyon	Jun-92	1,625
Mancos Mesa	Jun-92	50,889
Mill Creek Canyon	Jun-92	9,866
Moquith Mountain	Jun-92	15,249
Mt. Ellen-Blue Hills	Jun-92	81,363
Mt. Hillers	Jun-92	19,277
Mt. Pennell	Jun-92	77,137
Mud Spring Canyon	Jun-92	40,573
Mule Canyon	Jun-92	6,171
Negro Bill Canyon	Jun-92	7,560
North Escalante Canyons/The Gulch	Jun-92	127,459
North Fork Virgin River	Jun-92	1,080
North Stansbury Mountains	Jun-92	10,786
Notch Peak	Jun-92	57,296
Orderville Canyon	Jun-92	1,952
Paria Hackberry	Jun-92	145,828
Paria Hackberry 202	Jun-92	402
Parunuweap Canyon	Jun-92	30,907
Phipps-Death Hollow	Jun-92	45,328
Road Canyon	Jun-92	52,404
Rockwell	Jun-92	9,342
Scorpion	Jun-92	37,319
Scott's Basin	Jun-92	8,265
Sego Lily	Jun-92	6,560
South Needles	Jun-92	160
Spring Creek Canyon	Jun-92	4,333
Spruce Canyon	Jun-92	20,353
Steep Creek	Jun-92	23,978
Swasey Mountain	Jun-92	59,006
The Blues	Jun-92	19,416
The Cockscomb	Jun-92	9,921
Wah Wah Mountains	Jun-92	49,429
Wahweap	Jun-92	144,268
West Cold Spring	Jun-92	3,283
Westwater Canyon	Jun-92	30,066
White Rock Range	Jun-92	3,767
Winter Ridge	Jun-92	43,322

Washington: 1 Wilderness Study Area

Wilderness Study Area	Date Established	Acres
Chopaka Mountain	Jul-92	5,554

Wyoming: 42 Wilderness Study Areas

Wilderness Study Area	Date Established	Acres
Adobetown	Jul-92	85,710
Alkali Basin/E Sand Dunes	Jul-92	12,800
Alkali Creek	Jul-92	10,100
Alkali Draw	Jul-92	16,990
Bennett Mountains	Jul-92	6,003
Big Horn Tack-On	Jul-92	80
Bobcat Draw Badlands	Jul-92	17,150
Buffalo Hump	Jul-92	10,300
Cedar Mountain	Jul-92	21,560
Copper Mountain	Jul-92	6,858
Devil's Playground/Twin Buttes	Jul-92	23,841
Dubois Badlands	Jul-92	4,520
Encampment River Canyon	Jul-92	4,547
Ferris Mountains	Jul-92	22,245
Fortification Creek	Jul-92	12,419
Gardner Mountain	Jul-92	6,423
Honeycomb Buttes	Jul-92	40,548
Honeycombs	Jul-92	21,000
Lake Mountain	Jul-92	13,865
McCullough Peaks	Jul-92	24,570
Medicine Lodge	Jul-92	7,740
North Fork Powder River	Jul-92	10,089
Oregon Buttes	Jul-92	5,700
Owl Creek	Jul-92	710
Prospect Mountain	Jul-92	1,145
Pryor Mountain	Jul-92	4,352
Raymond Mountain	Jul-92	32,936
Red Butte	Jul-92	11,350
Red Creek Badlands	Jul-92	8,020
Red Lake	Jul-92	9,515
Sand Dunes	Jul-92	26,309
Scab Creek Primitive Area	Jul-92	7,636
Sheep Mountain	Jul-92	23,250
South Pinnacles	Jul-92	10,800
Sweetwater Canyon	Jul-92	9,056
Sweetwater Rocks (Lankin Dome)	Jul-92	6,316
Sweetwater Rocks (Miller Springs)	Jul-92	6,429
Sweetwater Rocks (Savage Peak)	Jul-92	7,041
Sweetwater Rocks (Split Rock)	Jul-92	12,789
Trapper Creek	Jul-92	7,200
Whiskey Mountain	Jul-92	487
Whitehorse Creek	Jul-92	4,002

Unit data as of January 2026. Data are generalized for informal use, conditions on the ground may differ. Some wilderness study area units may span state borders.