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List of wilderness study areas
From Wikipedia, the free encyclopedia
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This is a list of some of the wilderness study areas (WSA) in the United States as of December 2009. Wilderness study areas are designated lands that meet criteria of the Wilderness Act and are managed as wilderness by their parent agency, pending final determination by Congress.
Bureau of Land Management wilderness study areas
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These areas are administered as part of the National Landscape Conservation System managed by the Bureau of Land Management.[1]
States with BLM wilderness study areas
More information State, Number of areas ...
| State | Number of areas | Total area |
|---|---|---|
| Alaska | 1 | 478,700 acres (1,937 km2) |
| Arizona | 2 | 63,930 acres (258.7 km2) |
| California | 70 | 825,997 acres (3,342.69 km2) |
| Colorado | 54 | 548,023 acres (2,217.77 km2) |
| Idaho | 40 | 544,620 acres (2,204.0 km2) |
| Montana | 39 | 449,963 acres (1,820.94 km2) |
| Nevada | 63 | 2,552,457 acres (10,329.43 km2) |
| New Mexico | 58 | 958,751 acres (3,879.93 km2) |
| Oregon | 89 | 2,659,618 acres (10,763.09 km2) |
| Utah | 86 | 3,234,518 acres (13,089.63 km2) |
| Washington | 1 | 5,636 acres (22.81 km2) |
| Wyoming | 42 | 574,401 acres (2,324.52 km2) |
| Total | 541* | 12,679,399 acres (51,311.71 km2) |
Close
- There are some wilderness study areas that cross state boundaries
BLM wilderness study areas
More information State, Name ...
| State | Name | Area | Recommendation date |
|---|---|---|---|
| Alaska | Central Arctic Management Area | 478,700 acres (1,937 km2) | |
| Arizona | Baker Canyon | 4,182 acres (16.92 km2) | |
| Arizona | Cactus Plain | 59,118 acres (239.24 km2) | |
| California | Aqua Tibia | 344 acres (1.39 km2) | |
| California | Avawatz Mountains | 48,621 acres (196.76 km2) | NA |
| California | Bear Canyon | 318 acres (1.29 km2) | NA |
| California | Bear Mountain | 3,178 acres (12.86 km2) | NA |
| California | Beauty Mountain | 11,364 acres (45.99 km2) | July 1991 |
| California | Big Butte | 1,500 acres (6.1 km2) | July 1991 |
| California | Bitterbrush | 640 acres (2.6 km2) | July 1991 |
| California | Black Mountain | 150 acres (0.61 km2) | NA |
| California | Bodie | 16,482 acres (66.70 km2) | July 1991 |
| California | Bodie Mountain | 23,934 acres (96.86 km2) | July 1991 |
| California | Buffalo Hills | 856 acres (3.46 km2) | July 1991 |
| California | Cady Mountains | 84,400 acres (342 km2) | NA |
| California | Caliente Mountain | 17,590 acres (71.2 km2) | July 1991 |
| California | Carrizo Gorge | 300 acres (1.2 km2) | July 1991 |
| California | Carson Iceberg | 550 acres (2.2 km2) | July 1991 |
| California | Casa Diablo | 5,325 acres (21.55 km2) | July 1991 |
| California | Cerro Gordo | 5,800 acres (23 km2) | July 1991 |
| California | Chidago Canyon | 19,702 acres (79.73 km2) | July 1991 |
| California | Crater Mountain | 7,069 acres (28.61 km2) | July 1991 |
| California | Death Valley 17 | 17,280 acres (69.9 km2) | NA |
| California | Dry Valley Rim | 18,131 acres (73.37 km2) | July 1991 |
| California | Eden Valley | 6,166 acres (24.95 km2) | July 1991 |
| California | Excelsior | 9,383 acres (37.97 km2) | July 1991 |
| California | Fish Slough | 14,700 acres (59 km2) | July 1991 |
| California | Five Springs | 47,823 acres (193.53 km2) | July 1991 |
| California | Garcia Mountain | 80 acres (0.32 km2) | July 1991 |
| California | Great Falls Basin | 8,800 acres (36 km2) | NA |
| California | Hauser Mountain | 5,540 acres (22.4 km2) | July 1991 |
| California | Independence Creek | 6,458 acres (26.13 km2) | July 1991 |
| California | Kingson Range | 39,750 acres (160.9 km2) | NA |
| California | Lava | 10,770 acres (43.6 km2) | July 1991 |
| California | Machesna | 70 acres (0.28 km2) | July 1991 |
| California | Masonic Mountain | 6,493 acres (26.28 km2) | |
| California | Merced River | 12,959 acres (52.44 km2) | July 1991 |
| California | Milk Ranch/Chase Mountain | 8,970 acres (36.3 km2) | July 1991 |
| California | Mormon Meadow | 7,721 acres (31.25 km2) | |
| California | Moses | 558 acres (2.26 km2) | NA |
| California | Mount Biedeman | 13,069 acres (52.89 km2) | July 1991 |
| California | Owens Peak | 310 acres (1.3 km2) | July 1991 |
| California | Panoche Hills North | 6,631 acres (26.83 km2) | July 1991 |
| California | Panoche Hills South | 11,229 acres (45.44 km2) | July 1991 |
| California | Pit River Canyon | 11,724 acres (47.45 km2) | July 1991 |
| California | Piute Cypress | 3,453 acres (13.97 km2) | July 1991 |
| California | Rockhouse (a) | 130 acres (0.53 km2) | July 1991 |
| California | Rockhouse (b) | 180 acres (0.73 km2) | NA |
| California | Rocky Creek/Cache Creek | 6,570 acres (26.6 km2) | July 1991 |
| California | Sacatar Meadows | 140 acres (0.57 km2) | July 1991 |
| California | San Benito Mountain | 1,500 acres (6.1 km2) | July 1991 |
| California | San Felipe Hills | 5,325 acres (21.55 km2) | July 1991 |
| California | San Ysidro Mountain | 2,125 acres (8.60 km2) | July 1991 |
| California | Sawtooth Mountains A | 3,883 acres (15.71 km2) | July 1991 |
| California | Sawtooth Mountains C | 600 acres (2.4 km2) | July 1991 |
| California | Scodie | 420 acres (1.7 km2) | NA |
| California | Sheep Ridge | 5,102 acres (20.65 km2) | July 1991 |
| California | Skedaddle | 61,421 acres (248.56 km2) | July 1991 |
| California | Slinkard | 6,268 acres (25.37 km2) | July 1991 |
| California | Soda Mountains | 80,430 acres (325.5 km2) | NA |
| California | South Warner Contiguous | 4,330 acres (17.5 km2) | July 1991 |
| California | Southern Inyo | 4,900 acres (20 km2) | July 1991 |
| California | Symmes Creek | 7,694 acres (31.14 km2) | July 1991 |
| California | Table Mountain | 1,018 acres (4.12 km2) | July 1991 |
| California | Thatcher Ridge | 130 acres (0.53 km2) | July 1991 |
| California | Timbered Crater | 17,896 acres (72.42 km2) | July 1991 |
| California | Tule Mountain | 16,998 acres (68.79 km2) | July 1991 |
| California | Tunnison Mountain | 19,884 acres (80.47 km2) | July 1991 |
| California | Twin Peaks | 25,667 acres (103.87 km2) | July 1991 |
| California | Volcanic Tablelands | 12,499 acres (50.58 km2) | July 1991 |
| California | Walford Springs | 12,840 acres (52.0 km2) | |
| California | White Mountains | 11,200 acres (45 km2) | NA |
| California | Yolla Bolly Contiguous | 646 acres (2.61 km2) | July 1991 |
| Colorado | Adobe Badlands | 10,425 acres (42.19 km2) | January 1993 |
| Colorado | American Flats | 3,306 acres (13.38 km2) | January 1993 |
| Colorado | Ant Hills | 4,354 acres (17.62 km2) | January 1993 |
| Colorado | Beaver Creek | 26,150 acres (105.8 km2) | January 1993 |
| Colorado | Bill Hare Gulch | 76 acres (0.31 km2) | January 1993 |
| Colorado | Black Canyon | 1,200 acres (4.9 km2) | NA |
| Colorado | Black Mountain | 9,932 acres (40.19 km2) | January 1993 |
| Colorado | Browns Canyon | 6,614 acres (26.77 km2) | January 1993 |
| Colorado | Bull Canyon | 11,777 acres (47.66 km2) | January 1993 |
| Colorado | Bull Gulch | 15,000 acres (61 km2) | January 1993 |
| Colorado | Cahone Canyon | 8,960 acres (36.3 km2) | January 1993 |
| Colorado | Camel Back | 10,402 acres (42.10 km2) | January 1993 |
| Colorado | Castle Peak | 11,940 acres (48.3 km2) | January 1993 |
| Colorado | Chew Winter Camp | 1,320 acres (5.3 km2) | January 1993 |
| Colorado | Cross Canyon | 11,580 acres (46.9 km2) | January 1993 |
| Colorado | Cross Mountain | 14,081 acres (56.98 km2) | January 1993 |
| Colorado | Demaree Canyon | 21,050 acres (85.2 km2) | January 1993 |
| Colorado | Diamond Breaks | 31,480 acres (127.4 km2) | January 1993 |
| Colorado | Dolores River Canyon | 28,668 acres (116.02 km2) | January 1993 |
| Colorado | Domingquez Canyon | 2,086 acres (8.44 km2) | |
| Colorado | Eagle Mountain | 330 acres (1.3 km2) | January 1993 |
| Colorado | Hack Lake | 10 acres (0.040 km2) | January 1993 |
| Colorado | Handies Peak | 16,664 acres (67.44 km2) | January 1993 |
| Colorado | High Mesa Grassland | 680 acres (2.8 km2) | January 1993 |
| Colorado | Little Book Cliffs | 26,525 acres (107.34 km2) | January 1993 |
| Colorado | Lower Grape Creek | 11,220 acres (45.4 km2) | January 1993 |
| Colorado | McIntyre Hills | 16,650 acres (67.4 km2) | January 1993 |
| Colorado | McKenna Peak | 19,398 acres (78.50 km2) | January 1993 |
| Colorado | Menefee Mountain | 7,089 acres (28.69 km2) | January 1993 |
| Colorado | Needle Rock | 80 acres (0.32 km2) | January 1993 |
| Colorado | North Sand Hills | 791 acres (3.20 km2) | January 1993 |
| Colorado | Oil Spring Mountain | 17,740 acres (71.8 km2) | January 1993 |
| Colorado | Papa Keal | 400 acres (1.6 km2) | January 1993 |
| Colorado | Peterson Draw | 5,160 acres (20.9 km2) | January 1993 |
| Colorado | Platte River Contiguous | 30 acres (0.12 km2) | January 1993 |
| Colorado | Powderhorn | 7,022 acres (28.42 km2) | January 1993 |
| Colorado | Rare Lizard and Snake | 443 acres (1.79 km2) | January 1993 |
| Colorado | Redcloud Peak | 36,722 acres (148.61 km2) | January 1993 |
| Colorado | San Luis Hills | 10,240 acres (41.4 km2) | January 1993 |
| Colorado | Sewemup Mesa | 19,140 acres (77.5 km2) | January 1993 |
| Colorado | Skull Creek | 13,740 acres (55.6 km2) | January 1993 |
| Colorado | South Piney Creek | 10 acres (0.040 km2) | |
| Colorado | Squaw/Papoose Canyon | 4,611 acres (18.66 km2) | January 1993 |
| Colorado | The Palisade | 26,050 acres (105.4 km2) | January 1993 |
| Colorado | Troublesome | 8,250 acres (33.4 km2) | January 1993 |
| Colorado | Upper Grape Creek | 10,200 acres (41 km2) | January 1993 |
| Colorado | Vale of Tears | 7,420 acres (30.0 km2) | January 1993 |
| Colorado | Weber Mountain | 6,303 acres (25.51 km2) | January 1993 |
| Colorado | Weminuche Contiguous | 1,840 acres (7.4 km2) | NA |
| Colorado | West Cold Spring | 14,482 acres (58.61 km2) | January 1993 |
| Colorado | West Needles Creek Contiguous | 1,240 acres (5.0 km2) | NA |
| Colorado | Whitehead Gulch | 1,500 acres (6.1 km2) | NA |
| Colorado | Willow Creek | 13,368 acres (54.10 km2) | January 1993 |
| Colorado | Windy Gulch | 12,274 acres (49.67 km2) | January 1993 |
| Idaho | Appendicitis Hill | 25,376 acres (102.69 km2) | September 1992 |
| Idaho | Bear Den Butte | 5,419 acres (21.93 km2) | September 1992 |
| Idaho | Black Butte | 3,893 acres (15.75 km2) | September 1992 |
| Idaho | Black Canyon | 5,534 acres (22.40 km2) | September 1992 |
| Idaho | Black Canyon | 10,609 acres (42.93 km2) | September 1992 |
| Idaho | Borah Peak | 3,941 acres (15.95 km2) | September 1992 |
| Idaho | Box Creek | 439 acres (1.78 km2) | September 1992 |
| Idaho | Burnt Creek | 23,829 acres (96.43 km2) | September 1992 |
| Idaho | Cedar Butte | 36,390 acres (147.3 km2) | September 1992 |
| Idaho | China Cup Butte | 166 acres (0.67 km2) | September 1992 |
| Idaho | Crystal Lake | 8,893 acres (35.99 km2) | September 1992 |
| Idaho | Deer Creek | 8,071 acres (32.66 km2) | September 1992 |
| Idaho | Eighteen Mile | 25,015 acres (101.23 km2) | September 1992 |
| Idaho | Friedman Creek | 9,424 acres (38.14 km2) | September 1992 |
| Idaho | Goldburg | 3,946 acres (15.97 km2) | September 1992 |
| Idaho | Gooding City of Rocks East | 14,317 acres (57.94 km2) | September 1992 |
| Idaho | Gooding City of Rocks West | 6,656 acres (26.94 km2) | September 1992 |
| Idaho | Grandmother Mountain | 11,825 acres (47.85 km2) | September 1992 |
| Idaho | Great Rift | 46,632 acres (188.71 km2) | September 1992 |
| Idaho | Hawley Mountain | 16,807 acres (68.02 km2) | September 1992 |
| Idaho | Hell's Half Acre | 67,751 acres (274.18 km2) | September 1992 |
| Idaho | Henrys Lake | 338 acres (1.37 km2) | September 1992 |
| Idaho | King Hill Creek | 28,218 acres (114.19 km2) | September 1992 |
| Idaho | Lava | 23,276 acres (94.19 km2) | September 1992 |
| Idaho | Little City of Rocks | 6,606 acres (26.73 km2) | September 1992 |
| Idaho | Little Deer | 13,936 acres (56.40 km2) | September 1992 |
| Idaho | Little Wood River | 4,183 acres (16.93 km2) | September 1992 |
| Idaho | Lower Salmon Falls Creek | 3,282 acres (13.28 km2) | September 1992 |
| Idaho | Marshall Mountain | 5,527 acres (22.37 km2) | September 1992 |
| Idaho | Petticoat Peak | 11,192 acres (45.29 km2) | September 1992 |
| Idaho | Raven's Eye | 31,319 acres (126.74 km2) | September 1992 |
| Idaho | Sand Butte | 21,399 acres (86.60 km2) | September 1992 |
| Idaho | Sand Mountain | 21,709 acres (87.85 km2) | September 1992 |
| Idaho | Selkirk Crest | 622 acres (2.52 km2) | September 1992 |
| Idaho | Shale Butte | 15,560 acres (63.0 km2) | September 1992 |
| Idaho | Shoshone | 6,757 acres (27.34 km2) | September 1992 |
| Idaho | Snake River Islands | 341 acres (1.38 km2) | September 1992 |
| Idaho | Snowhole Rapids | 5,336 acres (21.59 km2) | September 1992 |
| Idaho | White Knob Mountains | 10,047 acres (40.66 km2) | September 1992 |
| Idaho | Worm Creek | 39 acres (0.16 km2) | September 1992 |
| Montana | Antelope Creek | 12,350 acres (50.0 km2) | January 1993 |
| Montana | Axolotl Lakes | 7,804 acres (31.58 km2) | January 1993 |
| Montana | Beaver Meadows | 595 acres (2.41 km2) | NA |
| Montana | Bell/Limekiln Canyons | 9,650 acres (39.1 km2) | January 1993 |
| Montana | Big Horn Tack-on | 2,470 acres (10.0 km2) | January 1993 |
| Montana | Billy Creek | 3,450 acres (14.0 km2) | January 1993 |
| Montana | Bitter Creek | 59,660 acres (241.4 km2) | January 1993 |
| Montana | Black Sage | 5,926 acres (23.98 km2) | January 1993 |
| Montana | Blacktail Mountains | 17,479 acres (70.74 km2) | January 1993 |
| Montana | Bridge Coulee | 5,900 acres (24 km2) | January 1993 |
| Montana | Buffalo Creek | 5,650 acres (22.9 km2) | January 1993 |
| Montana | Burnt Lodge | 13,730 acres (55.6 km2) | January 1993 |
| Montana | Burnt Timber Canyon | 3,430 acres (13.9 km2) | January 1993 |
| Montana | Centennial Mountains | 27,691 acres (112.06 km2) | January 1993 |
| Montana | Cow Creek | 34,050 acres (137.8 km2) | January 1993 |
| Montana | Dog Creek South | 5,150 acres (20.8 km2) | January 1993 |
| Montana | East Fork Blacktail Deer Creek | 6,230 acres (25.2 km2) | January 1993 |
| Montana | Elkhorn | 3,585 acres (14.51 km2) | NA |
| Montana | Ervin Ridge | 10,200 acres (41 km2) | January 1993 |
| Montana | Farlin Creek | 1,139 acres (4.61 km2) | January 1993 |
| Montana | Henneberry Ridge | 9,806 acres (39.68 km2) | January 1993 |
| Montana | Hidden Pasture Creek | 15,509 acres (62.76 km2) | January 1993 |
| Montana | Hoodoo Mountain | 11,380 acres (46.1 km2) | January 1993 |
| Montana | Humbug Spires | 11,175 acres (45.22 km2) | January 1993 |
| Montana | Musselshell Breaks | 8,650 acres (35.0 km2) | January 1993 |
| Montana | North Fork Sun River | 196 acres (0.79 km2) | NA |
| Montana | Pryor Mountain | 12,575 acres (50.89 km2) | January 1993 |
| Montana | Quigg West | 520 acres (2.1 km2) | January 1993 |
| Montana | Ruby Mountains | 26,611 acres (107.69 km2) | January 1993 |
| Montana | Seven Blackfoot | 20,250 acres (81.9 km2) | January 1993 |
| Montana | Sleeping Giant/Sheep Creek | 10,454 acres (42.31 km2) | January 1993 |
| Montana | Square Butte | 1,947 acres (7.88 km2) | January 1993 |
| Montana | Stafford | 4,800 acres (19 km2) | January 1993 |
| Montana | Terry Badlands | 44,910 acres (181.7 km2) | January 1993 |
| Montana | Twin Coulee | 6,870 acres (27.8 km2) | January 1993 |
| Montana | Wales Creek | 11,580 acres (46.9 km2) | January 1993 |
| Montana | Woodhawk | 8,100 acres (33 km2) | January 1993 |
| Montana | Yellowstone River Island | 53 acres (0.21 km2) | January 1993 |
| Montana | Zook Creek | 8,438 acres (34.15 km2) | January 1993 |
| Nevada | Alder Creek | 5,142 acres (20.81 km2) | September 1992 |
| Nevada | Antelope Range | 43,700 acres (177 km2) | September 1992 |
| Nevada | Augusta Mountains | 89,372 acres (361.68 km2) | September 1992 |
| Nevada | Bad Lands | 9,426 acres (38.15 km2) | September 1992 |
| Nevada | Blue Eagle | 59,560 acres (241.0 km2) | September 1992 |
| Nevada | Blue Lakes | 20,508 acres (82.99 km2) | September 1992 |
| Nevada | Bluebell | 55,665 acres (225.27 km2) | September 1992 |
| Nevada | Buffalo Hills | 45,287 acres (183.27 km2) | September 1992 |
| Nevada | Burbank Canyons | 13,395 acres (54.21 km2) | September 1992 |
| Nevada | Cedar Ridge | 10,009 acres (40.50 km2) | September 1992 |
| Nevada | China Mountain | 10,358 acres (41.92 km2) | September 1992 |
| Nevada | Clan Alpine Mountains | 196,128 acres (793.70 km2) | September 1992 |
| Nevada | Desatoya Mountains | 51,402 acres (208.02 km2) | September 1992 |
| Nevada | Disaster Peak | 13,200 acres (53 km2) | September 1992 |
| Nevada | Dry Valley Rim | 76,177 acres (308.28 km2) | September 1992 |
| Nevada | Fandango | 530 acres (2.1 km2) | September 1992 |
| Nevada | Five Springs | 1,383 acres (5.60 km2) | September 1992 |
| Nevada | Fox Range | 75,404 acres (305.15 km2) | September 1992 |
| Nevada | Gabbs Valley Range | 79,600 acres (322 km2) | September 1992 |
| Nevada | Goshute Canyon | 362 acres (1.46 km2) | September 1992 |
| Nevada | Goshute Peak | 69,770 acres (282.3 km2) | September 1992 |
| Nevada | Grapevine Mountains | 66,800 acres (270 km2) | September 1992 |
| Nevada | Job Peak | 90,209 acres (365.06 km2) | September 1992 |
| Nevada | Kawich | 54,320 acres (219.8 km2) | September 1992 |
| Nevada | Lahonton Cutthroat Trout | 12,316 acres (49.84 km2) | September 1992 |
| Nevada | Little Humboldt River | 42,213 acres (170.83 km2) | September 1992 |
| Nevada | Massacre Rim | 101,290 acres (409.9 km2) | September 1992 |
| Nevada | Million Hills | 21,296 acres (86.18 km2) | September 1992 |
| Nevada | Morey Peak | 5,070 acres (20.5 km2) | September 1992 |
| Nevada | Mount Limbo | 23,752 acres (96.12 km2) | September 1992 |
| Nevada | Mount Stirling | 5,600 acres (23 km2) | September 1992 |
| Nevada | Mountain Meadow | 22 acres (0.089 km2) | September 1992 |
| Nevada | North Fork Little Humboldt | 69,683 acres (282.00 km2) | September 1992 |
| Nevada | Owyhee Canyon | 21,875 acres (88.52 km2) | September 1992 |
| Nevada | Palisade Mesa | 99,550 acres (402.9 km2) | September 1992 |
| Nevada | Park Range | 47,268 acres (191.29 km2) | September 1992 |
| Nevada | Pigeon Spring | 3,575 acres (14.47 km2) | September 1992 |
| Nevada | Pinyon Joshua | 560 acres (2.3 km2) | September 1992 |
| Nevada | Pole Creek | 12,969 acres (52.48 km2) | September 1992 |
| Nevada | Poodle Mountain | 142,050 acres (574.9 km2) | September 1992 |
| Nevada | Pueblo Mountains | 600 acres (2.4 km2) | September 1992 |
| Nevada | Queer Mountain | 81,550 acres (330.0 km2) | September 1992 |
| Nevada | Rawhide Mountain | 64,360 acres (260.5 km2) | September 1992 |
| Nevada | Red Spring | 7,847 acres (31.76 km2) | September 1992 |
| Nevada | Resting Springs | 3,850 acres (15.6 km2) | September 1992 |
| Nevada | Riordan's Well | 57,002 acres (230.68 km2) | September 1992 |
| Nevada | Roberts Mountain | 15,090 acres (61.1 km2) | September 1992 |
| Nevada | Rough Hills | 6,685 acres (27.05 km2) | September 1992 |
| Nevada | Selenite Mountains | 32,041 acres (129.67 km2) | September 1992 |
| Nevada | Sheldon Contiguous | 23,700 acres (96 km2) | September 1992 |
| Nevada | Silver Peak Range | 33,900 acres (137 km2) | September 1992 |
| Nevada | Simpson Park | 49,670 acres (201.0 km2) | September 1992 |
| Nevada | Skedaddle | 589 acres (2.38 km2) | September 1992 |
| Nevada | South Fork Owyhee River | 7,842 acres (31.74 km2) | September 1992 |
| Nevada | South Pequop | 41,090 acres (166.3 km2) | September 1992 |
| Nevada | South Reveille | 106,200 acres (430 km2) | September 1992 |
| Nevada | Stillwater Range | 94,607 acres (382.86 km2) | September 1992 |
| Nevada | Sunrise Mountain | 9,952 acres (40.27 km2) | September 1992 |
| Nevada | The Wall | 38,000 acres (150 km2) | September 1992 |
| Nevada | Tobin Range | 13,107 acres (53.04 km2) | September 1992 |
| Nevada | Twin Peaks | 65,114 acres (263.51 km2) | September 1992 |
| Nevada | Virgin Mountain | 6,560 acres (26.5 km2) | September 1992 |
| Nevada | Wall Canyon | 46,305 acres (187.39 km2) | September 1992 |
| New Mexico | Aden Lava Flow | 25,287 acres (102.33 km2) | May 1992 |
| New Mexico | Alama Hueco Mountains | 16,264 acres (65.82 km2) | May 1992 |
| New Mexico | Antelope | 20,710 acres (83.8 km2) | May 1992 |
| New Mexico | Apache Box | 932 acres (3.77 km2) | May 1992 |
| New Mexico | Apache box Add-on | 6,229 acres (25.21 km2) | NA |
| New Mexico | Big Hatchet Mountains | 65,872 acres (266.57 km2) | May 1992 |
| New Mexico | Blue Creek | 14,896 acres (60.28 km2) | May 1992 |
| New Mexico | Brokeoff Mountains | 31,606 acres (127.90 km2) | May 1992 |
| New Mexico | Cabezon | 8,159 acres (33.02 km2) | May 1992 |
| New Mexico | Canyons | 3,930 acres (15.9 km2) | NA |
| New Mexico | Carrizozo Lava Flow | 10,690 acres (43.3 km2) | May 1992 |
| New Mexico | Cedar Mountains | 14,911 acres (60.34 km2) | May 1992 |
| New Mexico | Chain-of-Craters | 18,300 acres (74 km2) | NA |
| New Mexico | Chamisa | 16,602 acres (67.19 km2) | May 1992 |
| New Mexico | Continental Divide | 68,761 acres (278.27 km2) | May 1992 |
| New Mexico | Cooke's Range | 19,608 acres (79.35 km2) | May 1992 |
| New Mexico | Cowboy Spring | 6,699 acres (27.11 km2) | May 1992 |
| New Mexico | Culp Canyon | 10,937 acres (44.26 km2) | May 1992 |
| New Mexico | Devil's Backbone | 8,904 acres (36.03 km2) | May 1992 |
| New Mexico | Devil's Den Canyon | 320 acres (1.3 km2) | May 1992 |
| New Mexico | Devil's Ranch | 860 acres (3.5 km2) | NA |
| New Mexico | Eagle Peak | 43,960 acres (177.9 km2) | May 1992 |
| New Mexico | El Malpais | 21,300 acres (86 km2) | May 1992 |
| New Mexico | Empedrado | 9,007 acres (36.45 km2) | May 1992 |
| New Mexico | Florida Mountains | 22,336 acres (90.39 km2) | May 1992 |
| New Mexico | Gila Lower Box | 8,555 acres (34.62 km2) | May 1992 |
| New Mexico | Gray Peak | 14,678 acres (59.40 km2) | NA |
| New Mexico | Guadalupe Canyon | 4,146 acres (16.78 km2) | May 1992 |
| New Mexico | Horse Mountain | 5,032 acres (20.36 km2) | May 1992 |
| New Mexico | Hoverrocker | 22 acres (0.089 km2) | NA |
| New Mexico | Ignacio Chavez | 33,609 acres (136.01 km2) | May 1992 |
| New Mexico | Jornada del Muerto | 31,147 acres (126.05 km2) | May 1992 |
| New Mexico | La Lena | 10,438 acres (42.24 km2) | May 1992 |
| New Mexico | Las Uvas Mountains | 11,067 acres (44.79 km2) | May 1992 |
| New Mexico | Little Black Peak | 15,469 acres (62.60 km2) | May 1992 |
| New Mexico | Lonesome Ridge | 3,505 acres (14.18 km2) | May 1992 |
| New Mexico | Manzano | 881 acres (3.57 km2) | May 1992 |
| New Mexico | Mathers | 362 acres (1.46 km2) | May 1992 |
| New Mexico | McKittrick Canyon | 200 acres (0.81 km2) | May 1992 |
| New Mexico | Mesita Blanca | 19,414 acres (78.57 km2) | May 1992 |
| New Mexico | Mount Riley | 8,488 acres (34.35 km2) | May 1992 |
| New Mexico | Mudgetts | 2,941 acres (11.90 km2) | May 1992 |
| New Mexico | Ojito | 124 acres (0.50 km2) | May 1992 |
| New Mexico | Organ Mountains | 7,283 acres (29.47 km2) | May 1992 |
| New Mexico | Organ Needles | 7,604 acres (30.77 km2) | NA |
| New Mexico | Peloncillo Mountains | 4,061 acres (16.43 km2) | May 1992 |
| New Mexico | Pena Blanca | 4,780 acres (19.3 km2) | NA |
| New Mexico | Petaca Pinta | 11,668 acres (47.22 km2) | May 1992 |
| New Mexico | Presilla | 8,680 acres (35.1 km2) | May 1992 |
| New Mexico | Rio Chama | 12,671 acres (51.28 km2) | May 1992 |
| New Mexico | Robledo Mountains | 12,946 acres (52.39 km2) | May 1992 |
| New Mexico | San Antonio | 7,050 acres (28.5 km2) | May 1992 |
| New Mexico | Sierra de las Canas | 12,838 acres (51.95 km2) | May 1992 |
| New Mexico | Sierra Ladrones | 45,308 acres (183.35 km2) | May 1992 |
| New Mexico | Stallion | 24,238 acres (98.09 km2) | May 1992 |
| New Mexico | Veranito | 7,206 acres (29.16 km2) | May 1992 |
| New Mexico | West Potrillo Mountains | 148,697 acres (601.76 km2) | May 1992 |
| Oregon | Abert Rim | 25,088 acres (101.53 km2) | July 1992 |
| Oregon | Aldrich Mountain | 9,132 acres (36.96 km2) | July 1992 |
| Oregon | Alvord Desert | 236,260 acres (956.1 km2) | July 1992 |
| Oregon | Basque Hills | 140,308 acres (567.81 km2) | July 1992 |
| Oregon | Beaver Dam Creek | 19,138 acres (77.45 km2) | July 1992 |
| Oregon | Blitzen River | 31,902 acres (129.10 km2) | July 1992 |
| Oregon | Blue Canyon | 12,575 acres (50.89 km2) | July 1992 |
| Oregon | Blue Canyon Add-on | 40 acres (0.16 km2) | NA |
| Oregon | Bowden Hills | 59,061 acres (239.01 km2) | July 1992 |
| Oregon | Brewer Spruce | 210 acres (0.85 km2) | July 1992 |
| Oregon | Bridge Creek | 14,325 acres (57.97 km2) | July 1992 |
| Oregon | Camp Creek | 19,869 acres (80.41 km2) | July 1992 |
| Oregon | Castle Rock | 6,152 acres (24.90 km2) | July 1992 |
| Oregon | Cedar Mountain | 33,469 acres (135.44 km2) | July 1992 |
| Oregon | Clarks Butte | 31,284 acres (126.60 km2) | July 1992 |
| Oregon | Cottonwood Creek | 8,111 acres (32.82 km2) | July 1992 |
| Oregon | Cougar Well | 19,302 acres (78.11 km2) | July 1992 |
| Oregon | Deschutes Canyon-Steelhead Falls | 3,192 acres (12.92 km2) | July 1992 |
| Oregon | Devils Garden Lava Bed | 28,236 acres (114.27 km2) | July 1992 |
| Oregon | Diablo Mountain | 118,798 acres (480.76 km2) | July 1992 |
| Oregon | Disaster Peak | 17,443 acres (70.59 km2) | July 1992 |
| Oregon | Douglas-Fir | 590 acres (2.4 km2) | July 1992 |
| Oregon | Dry Creek | 23,350 acres (94.5 km2) | July 1992 |
| Oregon | Dry Creek Buttes | 52,382 acres (211.98 km2) | July 1992 |
| Oregon | East Alvord | 22,161 acres (89.68 km2) | July 1992 |
| Oregon | Fifteenmile Creek | 50,332 acres (203.69 km2) | July 1992 |
| Oregon | Fish Creek Rim | 19,121 acres (77.38 km2) | July 1992 |
| Oregon | Four Craters Lava Bed | 12,472 acres (50.47 km2) | July 1992 |
| Oregon | Gerry Mountain | 22,350 acres (90.4 km2) | July 1992 |
| Oregon | Gold Creek | 13,598 acres (55.03 km2) | July 1992 |
| Oregon | Guano Creek | 10,581 acres (42.82 km2) | July 1992 |
| Oregon | Hampton Butte | 10,249 acres (41.48 km2) | July 1992 |
| Oregon | Hawk Mountain | 69,735 acres (282.21 km2) | July 1992 |
| Oregon | Heath Lake | 21,197 acres (85.78 km2) | July 1992 |
| Oregon | High Steens | 14,089 acres (57.02 km2) | July 1992 |
| Oregon | Home Creek | 1,165 acres (4.71 km2) | July 1992 |
| Oregon | Homestead | 14,581 acres (59.01 km2) | July 1992 |
| Oregon | Honeycombs | 38,690 acres (156.6 km2) | July 1992 |
| Oregon | Indian Creek | 208 acres (0.84 km2) | July 1992 |
| Oregon | Jordan Craters | 27,780 acres (112.4 km2) | July 1992 |
| Oregon | Little Sink | 80 acres (0.32 km2) | July 1992 |
| Oregon | Lookout Butte | 66,206 acres (267.93 km2) | July 1992 |
| Oregon | Lost Forest | 8,000 acres (32 km2) | July 1992 |
| Oregon | Lower John Day | 25,396 acres (102.77 km2) | July 1992 |
| Oregon | Lower Owyhee Canyon | 74,743 acres (302.47 km2) | July 1992 |
| Oregon | Lower Stonehouse | 7,449 acres (30.15 km2) | July 1992 |
| Oregon | Mahogany Ridge | 27,363 acres (110.73 km2) | July 1992 |
| Oregon | Malheur River-Bluebucket Creek | 5,529 acres (22.38 km2) | July 1992 |
| Oregon | Mcgraw Creek | 520 acres (2.1 km2) | July 1992 |
| Oregon | Mountain Lakes | 340 acres (1.4 km2) | July 1992 |
| Oregon | North Fork | 11,397 acres (46.12 km2) | July 1992 |
| Oregon | North Pole Ridge | 7,301 acres (29.55 km2) | July 1992 |
| Oregon | Oregon Canyon | 42,121 acres (170.46 km2) | July 1992 |
| Oregon | Orejana Canyon | 24,183 acres (97.87 km2) | July 1992 |
| Oregon | Owyhee Breaks | 13,118 acres (53.09 km2) | July 1992 |
| Oregon | Owyhee River Canyon | 187,590 acres (759.1 km2) | July 1992 |
| Oregon | Palomino Hills | 54,242 acres (219.51 km2) | July 1992 |
| Oregon | Pats Cabin | 9,782 acres (39.59 km2) | NA |
| Oregon | Pine Creek | 200 acres (0.81 km2) | July 1992 |
| Oregon | Pueblo Mountains | 74,112 acres (299.92 km2) | July 1992 |
| Oregon | Red Mountain | 15,659 acres (63.37 km2) | July 1992 |
| Oregon | Rincon | 108,482 acres (439.01 km2) | July 1992 |
| Oregon | Saddle Butte | 85,764 acres (347.07 km2) | July 1992 |
| Oregon | Sage Hen Hills | 7,967 acres (32.24 km2) | July 1992 |
| Oregon | Sand Dunes | 15,538 acres (62.88 km2) | July 1992 |
| Oregon | Sand Hollow | 9,383 acres (37.97 km2) | July 1992 |
| Oregon | Sheep Gulch | 741 acres (3.00 km2) | July 1992 |
| Oregon | Sheep Mountain | 7,247 acres (29.33 km2) | July 1992 |
| Oregon | Sheepshead Mountains | 52,787 acres (213.62 km2) | July 1992 |
| Oregon | Slocum Creek | 7,553 acres (30.57 km2) | July 1992 |
| Oregon | South Fork | 20,332 acres (82.28 km2) | July 1992 |
| Oregon | South Fork Donner and Blitzen | 27,969 acres (113.19 km2) | July 1992 |
| Oregon | Spaulding | 68,492 acres (277.18 km2) | July 1992 |
| Oregon | Sperry Creek | 5,295 acres (21.43 km2) | July 1992 |
| Oregon | Spring Basin | 6,483 acres (26.24 km2) | July 1992 |
| Oregon | Squaw Ridge Lava Bed | 28,684 acres (116.08 km2) | July 1992 |
| Oregon | Stonehouse | 22,767 acres (92.13 km2) | July 1992 |
| Oregon | Sutton Mountain | 28,906 acres (116.98 km2) | NA |
| Oregon | Table Mountain | 40,083 acres (162.21 km2) | July 1992 |
| Oregon | Thirtymile | 7,626 acres (30.86 km2) | July 1992 |
| Oregon | Twelvemile Creek | 28,041 acres (113.48 km2) | July 1992 |
| Oregon | Upper Leslie Gulch | 2,905 acres (11.76 km2) | July 1992 |
| Oregon | Upper West Little Owyhee | 61,458 acres (248.71 km2) | July 1992 |
| Oregon | West Peak | 8,590 acres (34.8 km2) | July 1992 |
| Oregon | Western Juniper | 600 acres (2.4 km2) | July 1992 |
| Oregon | Wild Horse Basin | 12,007 acres (48.59 km2) | July 1992 |
| Oregon | Wildcat Canyon | 34,724 acres (140.52 km2) | July 1992 |
| Oregon | Willow Creek | 29,852 acres (120.81 km2) | July 1992 |
| Oregon | Winter Range | 15,517 acres (62.80 km2) | July 1992 |
| Utah | Behind The Rocks | 13,065 acres (52.87 km2) | June 1992 |
| Utah | Black Ridge Canyon West | 52 acres (0.21 km2) | June 1992 |
| Utah | Book Cliffs Mountain Browse | 399 acres (1.61 km2) | June 1992 |
| Utah | Bridge Jack Mesa | 6,333 acres (25.63 km2) | June 1992 |
| Utah | Bull Canyon | 599 acres (2.42 km2) | June 1992 |
| Utah | Bull Mountain | 13,138 acres (53.17 km2) | June 1992 |
| Utah | Burning Hills | 65,710 acres (265.9 km2) | June 1992 |
| Utah | Butler Wash | 24,277 acres (98.25 km2) | June 1992 |
| Utah | Carcass Canyon | 48,628 acres (196.79 km2) | June 1992 |
| Utah | Cheesebox Canyon | 14,831 acres (60.02 km2) | June 1992 |
| Utah | Coal Canyon | 60,755 acres (245.87 km2) | June 1992 |
| Utah | Conger Mountain | 20,161 acres (81.59 km2) | June 1992 |
| Utah | Crack Canyon | 26,303 acres (106.44 km2) | June 1992 |
| Utah | Cross Canyon | 949 acres (3.84 km2) | June 1992 |
| Utah | Daniels Canyon | 2,516 acres (10.18 km2) | June 1992 |
| Utah | Dark Canyon | 67,825 acres (274.48 km2) | June 1992 |
| Utah | Death Ridge | 66,286 acres (268.25 km2) | June 1992 |
| Utah | Deep Creek Mountains | 79,144 acres (320.28 km2) | June 1992 |
| Utah | Desolation Canyon | 294,581 acres (1,192.13 km2) | June 1992 |
| Utah | Devils Canyon | 9,142 acres (37.00 km2) | June 1992 |
| Utah | Devils Garden | 640 acres (2.6 km2) | June 1992 |
| Utah | Diamond Breaks | 3,926 acres (15.89 km2) | June 1992 |
| Utah | Dirty Devil | 71,883 acres (290.90 km2) | June 1992 |
| Utah | Escalante Canyon Tract 1 | 364 acres (1.47 km2) | June 1992 |
| Utah | Escalante Canyon Tract 5 | 761 acres (3.08 km2) | June 1992 |
| Utah | Fiddler Butte | 73,360 acres (296.9 km2) | June 1992 |
| Utah | Fifty Mile Mountain | 160,833 acres (650.87 km2) | June 1992 |
| Utah | Fish Creek Canyon | 46,102 acres (186.57 km2) | June 1992 |
| Utah | Fish Springs | 57,609 acres (233.14 km2) | June 1992 |
| Utah | Floy Canyon | 72,282 acres (292.51 km2) | June 1992 |
| Utah | Flume Canyon | 50,628 acres (204.88 km2) | June 1992 |
| Utah | Fremont Gorge | 2,843 acres (11.51 km2) | June 1992 |
| Utah | French Spring-Happy Canyon | 24,306 acres (98.36 km2) | June 1992 |
| Utah | Grand Gulch | 105,213 acres (425.78 km2) | June 1992 |
| Utah | Horseshoe Canyon (North) | 19,502 acres (78.92 km2) | June 1992 |
| Utah | Horseshoe Canyon (South) | 39,842 acres (161.23 km2) | June 1992 |
| Utah | Howell Peak | 27,545 acres (111.47 km2) | June 1992 |
| Utah | Indian Creek | 6,554 acres (26.52 km2) | June 1992 |
| Utah | Jack Canyon | 7,203 acres (29.15 km2) | June 1992 |
| Utah | Joshua Tree | 1,048 acres (4.24 km2) | |
| Utah | King Top | 92,847 acres (375.74 km2) | June 1992 |
| Utah | Link Flats | 882 acres (3.57 km2) | June 1992 |
| Utah | Little Rockies | 40,733 acres (164.84 km2) | June 1992 |
| Utah | Lost Spring Canyon | 1,625 acres (6.58 km2) | June 1992 |
| Utah | Mancos Mesa | 50,889 acres (205.94 km2) | June 1992 |
| Utah | Mexican Mountain | 58,326 acres (236.04 km2) | June 1992 |
| Utah | Mill Creek Canyon | 9,866 acres (39.93 km2) | June 1992 |
| Utah | Moquith Mountain | 15,249 acres (61.71 km2) | June 1992 |
| Utah | Mount Ellen-Blue Hills | 81,363 acres (329.26 km2) | June 1992 |
| Utah | Mount Hillers | 19,277 acres (78.01 km2) | June 1992 |
| Utah | Mount Pennell | 77,137 acres (312.16 km2) | June 1992 |
| Utah | Mud Spring Canyon | 40,573 acres (164.19 km2) | June 1992 |
| Utah | Muddy Creek | 30,521 acres (123.51 km2) | June 1992 |
| Utah | Mule Canyon | 6,171 acres (24.97 km2) | June 1992 |
| Utah | Negro Bill Canyon | 7,560 acres (30.6 km2) | June 1992 |
| Utah | North Escalante Canyon/The Gulch | 127,459 acres (515.81 km2) | June 1992 |
| Utah | North Fork Virgin River | 1,080 acres (4.4 km2) | June 1992 |
| Utah | North Stansbury Mountains | 10,786 acres (43.65 km2) | June 1992 |
| Utah | Notch Peak | 57,296 acres (231.87 km2) | June 1992 |
| Utah | Orderville Canyon | 1,952 acres (7.90 km2) | June 1992 |
| Utah | Paria-Hackberry | 402 acres (1.63 km2) | June 1992 |
| Utah | Paria-Hackberry | 145,828 acres (590.14 km2) | June 1992 |
| Utah | Parunuweap Canyon | 30,907 acres (125.08 km2) | June 1992 |
| Utah | Phipps Death Hollow | 45,328 acres (183.44 km2) | June 1992 |
| Utah | Road Canyon | 52,404 acres (212.07 km2) | June 1992 |
| Utah | Rockwell | 9,342 acres (37.81 km2) | June 1992 |
| Utah | San Rafael Reef | 59,051 acres (238.97 km2) | June 1992 |
| Utah | Scorpion | 37,319 acres (151.02 km2) | June 1992 |
| Utah | Scott's Basin | 8,265 acres (33.45 km2) | June 1992 |
| Utah | Sids Cabin | 439 acres (1.78 km2) | June 1992 |
| Utah | Sids Mountain | 75,216 acres (304.39 km2) | June 1992 |
| Utah | South Needles | 160 acres (0.65 km2) | June 1992 |
| Utah | Spring Creek Canyon | 4,333 acres (17.54 km2) | June 1992 |
| Utah | Spruce Canyon | 20,353 acres (82.37 km2) | June 1992 |
| Utah | Squaw/Papoose Canyon | 6,560 acres (26.5 km2) | June 1992 |
| Utah | Steep Creek | 23,978 acres (97.04 km2) | June 1992 |
| Utah | Swasey Mountain | 59,006 acres (238.79 km2) | June 1992 |
| Utah | The Blues | 19,416 acres (78.57 km2) | June 1992 |
| Utah | The Cockscomb | 9,921 acres (40.15 km2) | June 1992 |
| Utah | Turtle Canyon | 33,379 acres (135.08 km2) | June 1992 |
| Utah | Wah Wah Mountains | 49,429 acres (200.03 km2) | June 1992 |
| Utah | Wahweap | 144,268 acres (583.83 km2) | June 1992 |
| Utah | West Cold Spring | 3,283 acres (13.29 km2) | June 1992 |
| Utah | Westwater Canyon | 30,066 acres (121.67 km2) | June 1992 |
| Utah | White Rock Range | 3,820 acres (15.5 km2) | June 1992 |
| Utah | Winter Ridge | 43,322 acres (175.32 km2) | June 1992 |
| Washington | Chopaka Mountain | 5,636 acres (22.81 km2) | July 1992 |
| Wyoming | Adobe Town | 85,710 acres (346.9 km2) | July 1992 |
| Wyoming | Alkali Basin – East Sand Dunes | 12,800 acres (52 km2) | July 1992 |
| Wyoming | Alkali Creek | 10,100 acres (41 km2) | July 1992 |
| Wyoming | Alkali Draw | 16,990 acres (68.8 km2) | July 1992 |
| Wyoming | Bennett Mountains | 6,003 acres (24.29 km2) | July 1992 |
| Wyoming | Big Horn Tack-on | 80 acres (0.32 km2) | July 1992 |
| Wyoming | Bobcat Draw Badlands | 17,150 acres (69.4 km2) | July 1992 |
| Wyoming | Buffalo Hump | 10,300 acres (42 km2) | July 1992 |
| Wyoming | Cedar Mountain | 21,560 acres (87.3 km2) | July 1992 |
| Wyoming | Copper Mountain | 6,858 acres (27.75 km2) | July 1992 |
| Wyoming | Devils Playground/Twin Buttes | 23,841 acres (96.48 km2) | July 1992 |
| Wyoming | Dubois Badlands | 4,520 acres (18.3 km2) | July 1992 |
| Wyoming | Encampment River Canyon | 4,547 acres (18.40 km2) | July 1992 |
| Wyoming | Ferris Mountains | 22,245 acres (90.02 km2) | July 1992 |
| Wyoming | Fortification Creek | 12,419 acres (50.26 km2) | July 1992 |
| Wyoming | Gardner Mountain | 6,423 acres (25.99 km2) | July 1992 |
| Wyoming | Honeycomb Buttes | 40,548 acres (164.09 km2) | July 1992 |
| Wyoming | Honeycombs | 21,000 acres (85 km2) | July 1992 |
| Wyoming | Lake Mountain | 13,865 acres (56.11 km2) | July 1992 |
| Wyoming | Lankin Dome | 6,316 acres (25.56 km2) | July 1992 |
| Wyoming | McCullough Peaks | 24,570 acres (99.4 km2) | July 1992 |
| Wyoming | Medicine Lodge | 7,740 acres (31.3 km2) | July 1992 |
| Wyoming | Miller Springs | 6,429 acres (26.02 km2) | July 1992 |
| Wyoming | North Fork Powder River | 10,089 acres (40.83 km2) | July 1992 |
| Wyoming | Oregon Buttes | 5,700 acres (23 km2) | July 1992 |
| Wyoming | Owl Creek | 710 acres (2.9 km2) | July 1992 |
| Wyoming | Prospect Mountain | 1,145 acres (4.63 km2) | July 1992 |
| Wyoming | Pryor Mountain | 4,352 acres (17.61 km2) | July 1992 |
| Wyoming | Raymond Mountain | 32,936 acres (133.29 km2) | July 1992 |
| Wyoming | Red Butte | 11,350 acres (45.9 km2) | July 1992 |
| Wyoming | Red Creek Badlands | 8,020 acres (32.5 km2) | July 1992 |
| Wyoming | Red Lake | 9,515 acres (38.51 km2) | July 1992 |
| Wyoming | Sand Dunes | 26,309 acres (106.47 km2) | July 1992 |
| Wyoming | Savage Peak | 7,041 acres (28.49 km2) | July 1992 |
| Wyoming | Scab Creek | 7,636 acres (30.90 km2) | July 1992 |
| Wyoming | Sheep Mountain | 23,250 acres (94.1 km2) | July 1992 |
| Wyoming | South Pinnacles | 10,800 acres (44 km2) | July 1992 |
| Wyoming | Split Rock | 12,789 acres (51.76 km2) | July 1992 |
| Wyoming | Sweetwater Canyon | 9,056 acres (36.65 km2) | July 1992 |
| Wyoming | Trapper Creek | 7,200 acres (29 km2) | July 1992 |
| Wyoming | Whiskey Mountain | 487 acres (1.97 km2) | July 1992 |
| Wyoming | Whitehorse Creek | 4,002 acres (16.20 km2) | July 1992 |
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