Area of Critical Environmental Concern

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This article is about the Federal ACEC program. For the state-level ACEC program in Massachusetts, see Area of Critical Environmental Concern (Massachusetts).

Faded signage for the Jawbone-Butterbredt ACEC in the Mojave Desert

Areas of Critical Environmental Concern (ACEC) is a

landscapes
that the agency assesses as in need of special management attention.

Criteria

To be considered a potential ACEC an area must meet criteria of both relevance and importance.[1]

Relevance

An area meets the relevance criteria of an ACEC if it contains one or more of the following:

  • A significant historic, cultural, or scenic value;
  • A fish or wildlife resource;
  • A natural process or system (including but not limited to areas supporting rare, endemic, relict, or endangered plant species, or rare geological features);
  • Natural hazards (most notably areas of avalanche, unstable soils, rockfall).

Importance

An area meets the importance criteria if it is characterized by one or more of the following:

  • Has more than locally significant qualities;
  • Has qualities or circumstances that make it fragile, sensitive, irreplaceable, rare, unique;
  • Has been recognized as warranting protection to satisfy national priority concerns or to carry out the mandates of the Federal Land Policy and Management Act;
  • Has qualities which warrant concern about safety and public welfare;
  • Poses a significant threat to human life and safety, or to property.

Designated ACECs

Alaska

Arizona

[3][4]

  • Witch Pool (279 acres)
  • Nampaweap (535 acres)
  • Pakoon (76,014 acres)
  • Beaver Dam Slope (51,197 acres)
  • Virgin River Corridor (8,075 acres)
  • Virgin Slope (39,931 acres)
  • Little Black Mountain (241 acres)
  • Fort Pearce (916 acres)
  • Marble Canyon (11,012 acres)
  • Johnson Springs (2,464 acres)
  • Lost Spring Mountain (8,262 acres)
  • Moonshine Ridge (5,095 acres)
  • Dripping Springs[5]
  • Sears Point[5]

California

Colorado

United States of America
.

[12][13]

  • Adobe Badlands[14] – 6,783 acres (27.45 km2)
  • American Basin[15] – 1,595 acres (6.45 km2)
  • Anasazi Culture[15] – 156,000 acres (631 km2)
  • Arkansas Canyonlands[15] – 23,921 acres (96.80 km2)
  • Atwell Gulch – 2,900 acres (11.74 km2)
  • Badger Wash – 1,520 acres (6.15 km2)
  • Barger Gulch Heritage Area – 535 acres (2.17 km2)
  • Beaver Creek – 12,081 acres (48.89 km2)
  • Black's Gulch – 800 acres (3.24 km2)
  • Blanca Wildlife Habitat Area
    – 8,600 acres (34.8 km2)
  • Blue Hill – 4,178 acres (16.91 km2)
  • Browns Canyon – 11,697 acres (47.34 km2)
  • Bull Gulch – 10,214 acres (41.33 km2)
  • Coal Draw – 1,840 acres (7.45 km2)
  • Coal Oil Rim – 3,210 acres (12.99 km2)
  • Cucharas Canyon – 1,866 acres (7.55 km2)
  • Cumbres and Toltec Railroad – 3,824 acres (15.48 km2)
  • Debris Hazard – 7,126 acres (28.84 km2)
  • Deep Creek – 2,470 acres (10.00 km2)
  • Deer Gulch – 1,810 acres (7.32 km2)
  • Dillon Pinnacles – 532 acres (2.15 km2)
  • Droney Gulch – 705 acres (2.85 km2)
  • Duck Creek – 3,430 acres (13.88 km2)
  • Dudley Bluffs – 1,630 acres (6.60 km2)
  • East Douglas Creek – 47,610 acres (192.67 km2)
  • Elephant Rocks – 1,338 acres (5.41 km2)
  • Escalante Canyon – 1,895 acres (7.67 km2)
  • Fairview[14] – 377 acres (1.53 km2)
  • Garden Park National Natural Landmark
    – 2,728 acres (11.04 km2)
  • Glenwood Springs Debris Flow Hazard Zones – 6,100 acres (24.69 km2)
  • Grand Hogback – 4,300 acres (17.40 km2)
  • Grape Creek – 15,978 acres (64.66 km2)
  • Gunnison Gravels – 5 acres (0.02 km2)
  • Gunnison Sage Grouse – 22,000 acres (89.03 km2)
  • Gypsum Valley – 13,135 acres (53.16 km2)
  • Hardscrabble-East Eagle – 4,200 acres (17.00 km2)
  • Indian Creek – 2,300 acres (9.31 km2)
  • Irish Canyon – 11,680 acres (47.27 km2)
  • Juanita Arch – 1,600 acres (6.47 km2)
  • Kremmling – 674 acres (2.73 km2)
  • Kremling Ammonite Site Research Natural Area[15] – 160 acres (0.65 km2)
  • Laramie River – 1,783 acres (7.22 km2)
  • Los Mogotes – 33,456 acres (135.39 km2)
  • Lower Colorado River – 9,000 acres (36 km2)
  • Lower Greasewood Creek – 210 acres (0.85 km2)
  • Lyons Gulch – 400 acres (1.62 km2)
  • McCoy Fan Delta – 1,500 acres (6.07 km2)
  • McElmo Rare Lizard and Snake – 427 acres (1.73 km2)
  • Moosehead Mountain – 8,940 acres (36.18 km2)
  • Mosquito Pass – 4,036 acres (16.33 km2)
  • Mount Logan Foothills – 4,000 acres (16.19 km2)
  • Mt. Garfield – 2,400 acres (9.71 km2)
  • Native Plant Community – 4,577 acres (18.52 km2)
  • Needle Rock[14] – 80 acres (0.32 km2)
  • North Park Natural Area – 4,444 acres (17.98 km2)
  • North Park Phaceila – 300 acres (1.21 km2)
  • North Sand Hills – 486 acres (1.97 km2)
  • Oil Spring Mountain – 18,260 acres (73.90 km2)
  • Phantom Canyon – 6,096 acres (24.67 km2)
  • Pyramid Rock – 470 acres (1.90 km2)
  • Rajadero Canyon – 3,632 acres (14.70 km2)
  • Raven Ridge – 4,980 acres (20.15 km2)
  • Red Cloud Peak – 5,947 acres (24.07 km2)
  • Rio Grande – 2,830 acres (11.45 km2)
  • Roan and Carr Creeks – 33,600 acres (135.97 km2)
  • Rough Canyon – 1,470 acres (5.95 km2)
  • Ryan Gulch – 1,440 acres (5.83 km2)
  • San Luis Hills/Flattop – 29,261 acres (118.42 km2)
  • San Miguel River[14] – 20,964 acres (84.84 km2)
  • Sheep Creek Uplands – 3,900 acres (15.78 km2)
  • Sinbad Valley – 6,400 acres (25.90 km2)
  • Slumgullion National Natural Landmark – 1,407 acres (5.69 km2)
  • South Beaver Creek – 4,565 acres (18.47 km2)
  • South Cathedral Bluffs – 1,330 acres (5.38 km2)
  • South Shale Ridge – 27,800 acres (112.50 km2)
  • The Palisade – 19,178 acres (77.61 km2)
  • Thompson Creek – 4,286 acres (17.34 km2)
  • Trickle Mountain – 44,521 acres (180.17 km2)
  • Troublesome Creek – 998 acres (4.04 km2)
  • Unaweep Seep Research Natural Area – 37 acres (0.15 km2)
  • West Antelope Creek – 28,215 acres (114.18 km2)
  • White River Riparian – 950 acres (3.84 km2)
  • Yanks Gulch/Upper Greasewood Creek – 2,680 acres (10.85 km2)

Idaho

Montana

Climbers in Humbug Spires WSA

(For more detailed descriptions of the following sites see)[16]

  • Acid Shale-Pine Forest (endemic plant community, 2,463 acres (9.97 km2), Lewistown Office)
  • Ash Creek Divide (paleo, 7,931 acres (32.10 km2), Miles City Office)
  • Azure Cave (cave resources, bats; 140 acres (0.57 km2), Malta Office)
  • Battle Butte (cultural, 120 acres (0.49 km2), Miles City)
  • Bear Creek Flats (wildlife, oldgrowth pine, recreation, 564 acres (2.28 km2), Missoula Office)
  • Beaverhead Rock (historic petroglyphs, 120 acres (0.49 km2), Dillon Office)
  • Big Bend of the Milk River (archaeological resources 2,120 acres (8.6 km2), Malta)
  • Big Sheep Mountain (cultural, 360 acres (1.5 km2), Miles City)
  • Bitter Creek (vegetation, landscape; 59,600 acres (241 km2), Malta)[17]
  • Black-footed ferret (wildlife, 11,166 acres (45.19 km2), Miles City)
  • Blue Lake (home to axoloti, rare form of tiger salamander; 430 acres (1.7 km2), Dillon)
  • Block Mountain (geological education, 8,661 acres (35.05 km2), Dillon)
  • Bridger Fossil (paleo, 575 acres (2.33 km2), Billings Office)
  • Bug Creek (paleo, 3,840 acres (15.5 km2), Miles City)
  • Castle Butte (cultural, 185 acres (0.75 km2), Billings)
  • Centennial Mountains (wildlife migration route, rare plants, grizzly bear, lynx, & wolf; 40,715 acres (164.77 km2), Dillon)
  • Centennial Sandhills (sand dunes, sensitive plants; 1,040 acres (4.2 km2), Dillon)
  • Collar Gulch (cutthroat trout, 1,618 acres (6.55 km2), Lewistown)
  • Cow Creek (geological, scenic; 14,000 acres (57 km2), Lewistown)
  • East Pryor Mountains (wildlife, wild horses, paleo; 29,500 acres (119 km2), Billings)
  • Elkhorn Mountains (historic & cultural sites, wildlife; 50,431 acres (204.09 km2), Butte Office)
  • Everson Creek (Stone Age archaeological site, 8,608 acres (34.84 km2), Dillon)
  • Finger Buttes (scenic, 1,520 acres (6.2 km2), Miles City)
  • Four Dances (cultural, scenic, peregrine falcon habitat; 765 acres (3.10 km2), Billings)
  • Hell Creek (paleo, 19,169 acres (77.57 km2), Miles City)
  • Hoe (cultural, 144 acres (0.58 km2), Miles City)
  • Howrey Island (wildlife, 321 acres (1.30 km2), Miles City)
  • Humbug Spires (scenic, wildlife, vegetation; 8,374 acres (33.89 km2), Butte)
  • Judith Mountains Scenic Area (scenic, wildlife, recreation; 3,702 acres (14.98 km2), Lewistown)
  • Jordan Bison Kill (cultural, 160 acres (0.65 km2), Miles City Office)
  • Kevin Rim (wildlife, cultural, recreation; 4,657 acres (18.85 km2), Great Falls Office)
  • Meeteetse Spires (rare plants, scenery; 960 acres (3.9 km2), Billings)[18]
  • Mountain Plover (wildlife, vegetation; 24,730 acres (100.1 km2), Malta)
  • Muddy Creek/Big Sheep Creek (scenic, cultural; 13,097 acres (53.00 km2), Dillon)
  • Petroglyph Canyon (cultural, 240 acres (0.97 km2), Billings)
  • Piping Plover (wildlife, 16 acres (0.065 km2), Miles City)
  • Pompeys Pillar (historic, cultural, recreation; 470 acres (1.9 km2), Billings)
  • Powder River Depot (cultural, 1,386 acres (5.61 km2), Miles City)
  • Prairie Dog Towns, (black-footed ferret reintroduction site, 12,346 acres (49.96 km2), Malta)
  • Rattler Gulch Limestone Cliffs (scenic, 20 acres (0.081 km2), Missoula office. See Garnet Range for description)
  • Reynolds Battlefield (cultural, 336 acres (1.36 km2), Miles City)
  • Ringing Rocks (unique geology, 160 acres (0.65 km2), Butte Office)
  • Sand Arroyo (paleo, 9,056 acres (36.65 km2), Miles City)
  • Seline (cultural, 80 acres (0.32 km2), Miles City)
  • Sleeping Giant (recreation, wildlife, scenic; 11,679 acres (47.26 km2), Butte Office)
  • Smoky Butte (geology, recreation; 80 acres (0.32 km2), Miles City)
  • Square Butte (cultural, scenic, geologic; 1,947 acres (7.88 km2), Lewistown)
  • Squaw Rock (wildlife, scenic, recreation; 640 acres (2.6 km2), Missoula)
  • Sweetgrass Hills
    (Cultural, wildlife, recreation; 7,952 acres (32.18 km2), Great Falls)
  • Stark Site (cultural, 800 acres (3.2 km2), Billings)
  • Virginia City, Montana Historic District (historic, 513 acres (2.08 km2), Dillon)
  • Weatherman Draw (cultural, 4,268 acres (17.27 km2), Billings)

Nevada

  • Ash Meadows
  • Beaver Dam Slope
  • Condor Canyon
  • Ivanpah
  • Mormon Mesa
  • Piute/Eldorado
  • Rainbow Gardens
  • River Mountains

New Mexico

  • Sombrillo
  • La Cienega[19]
  • Simon Canyon
  • Florida Mountains
  • Sacramento Escarpment
  • Three Rivers Petroglyph
  • Alamo Hueco Mountains
  • Bear Creek
  • Blue Spring
  • Pecos River Canyon Complex
  • Big Hatchet Mountains
  • Cowboy Spring
  • Granite Gap
  • Guadalupe Canyon
  • Chosa Draw
  • Cookes Range
  • Gila Lower Box
  • Gila Middle Box
  • Alkali Lakes
  • Apache Box
  • Central Peloncillo Mountains
  • Uvas Valley
  • Black Grama
  • Cornudas Mountain
  • Wind Mountain
  • Alamo Mountain

Oregon

[20]

  • Wassen Creek (Natural systems and botanical values, 3,397 acres (13.75 km2), Coos Bay Office)
  • North Spit (Botanical, wildlife, and cultural values, 710 acres (2.9 km2), Coos Bay Office)
  • North Fork Coquille River (Natural systems; botanical fish values, 311 acres (1.26 km2), Coos Bay Office)
  • Tioga Creek (Natural systems, 42 acres (0.17 km2), Coos Bay Office)
  • Cherry Creek (Natural systems and botanical values, 592 acres (2.40 km2), Coos Bay Office)
  • China Wall (Natural systems; botanical and cultural values, 303 acres (1.23 km2), Coos Bay Office)
  • Upper Rock Creek (Natural systems and botanical values, 472 acres (1.91 km2), Coos Bay Office)
  • New River (Botanical, wildlife, fish and cultural values, 1,135 acres (4.59 km2), Coos Bay Office)
  • North Fork Hunter Creek (Natural systems; botanical and cultural values, 1,925 acres (7.79 km2), Coos Bay Office)
  • Hunter Creek Bog (Natural systems and botanical values, 721 acres (2.92 km2), Coos Bay Office)
  • North Fork Chetco River (Natural systems; and botanical, fish, and cultural values 603 acres (2.44 km2), Coos Bay Office)
  • Upper and Lower Table Rock[21]

Utah

[22]

  • Copper Globe (historic, 128 acres (0.52 km2), Vernal office)
  • Dark Canyon (59,755 acres, Monticello office)
  • I-70 Scenic ACEC (scenic, 45,463 acres (183.98 km2), Price office)
  • Lears Canyon (habitat, 1,378 acres (5.58 km2), Vernal office)
  • Lower Green River (scenic, habitat, 9,430 acres (38.2 km2), Vernal office)
  • Nine Mile Canyon (scenic, cultural, 48,151 acres (194.86 km2), Vernal office)
  • Pariette Wetlands (habitat, 10,635 acres (43.04 km2), Vernal office)
  • San Rafael Canyon (scenic, 54,102 acres (218.94 km2), Price office)
  • San Rafael Reef (scenic, 84,018 acres (340.01 km2), Price office)
  • Scenic Highway Corridor (scenic, 13,554 acres (54.85 km2), Monticello office)
  • Sid's Mountain (scenic, 61,380 acres (248.4 km2), Price office)
  • Temple Mountain (historic, 2,444 acres (9.89 km2), Price office)
  • Bonneville Salt Flats ((convert30,203))

Wyoming

[22]

  • Greater Red Creek (175240 acres)
  • Greater Sand Dunes (41644 acres)
  • Natural Corrals Archeological Site (1116 acres)
  • Pine Springs (6055 acres)
  • Special Status Plant Species (1009 acres)
  • White Mountain Petroglyphs (21.7 acres)

See also

References

  1. ^ BLM Manual 1613, Areas of Critical Environmental Concern, section 1613.1.11
  2. ^ a b "Area of Critical Environmental Concern (ACEC) - Designated".
  3. ^ Arizona Strip Proposed Plan/FEIS, 2007. Chapter 3: Affected Environment, Areas of Critical Concern. Bureau of Land Management. [1] (Accessed 2012-01-30)
  4. ^ "Yuma Field Office Record of Decision and Approved Resource Management Plan". Retrieved August 20, 2023.
  5. ^ a b c Yuma Rod eplanning.blm.gov
  6. ^ "Carrizo Plain". www.blm.gov. Retrieved October 3, 2016.
  7. ^ Conway Summit usa.gov [permanent dead link]
  8. ^ a b c d e f g h i j k l Lake Cahuilla subregion blm.gov
  9. ^ "Joaquin Rocks". www.blm.gov. Retrieved October 3, 2016.
  10. ^ "Red Hills ACEC, Mother Lode Field Office, Bureau of Land Management California". Archived from the original on December 21, 2010. Retrieved June 26, 2010. . accessed 2010-06-22.
  11. ^ "Serprentine". www.blm.gov. Retrieved October 3, 2016.
  12. ^ "Areas of Critical Environmental Concern". United States. Bureau of Land Management. Retrieved April 30, 2019.
  13. ^ The actual list is in an Excel file here.
  14. ^
    Department of the Interior, Bureau of Land Management
    . June 2010. Retrieved October 22, 2012.
  15. ^
    Department of the Interior, Bureau of Land Management. August 12, 2008. Archived from the original
    on May 30, 2010. Retrieved October 22, 2012.
  16. ^ Bureau of Land Management Montana/Dakotas. "ACEC Status Report". Retrieved January 1, 2012.
  17. ^ Northern Plains Conservation Network. "Bitter Creek/Grasslands National Park". Archived from the original on January 29, 2012. Retrieved January 1, 2012.
  18. ^ The Conservation Fund. "Saving Montana's Meeteetse Spires". Archived from the original on November 21, 2011. Retrieved January 1, 2012.
  19. ^ Community Celebrates Expansion of La Cienega ACEC Archived September 22, 2008, at the Wayback Machine, United States Department of the Interior, Bureau of Land Management, Press Release dated 2007-08-23, accessed 2008-07-06.
  20. ^ "ACEC Existing - Coos Bay Oregon/Washington BLM". blm.gov. Retrieved April 15, 2016.
  21. ^ "Welcome to the Table Rocks Oregon/Washington BLM". blm.gov. Retrieved April 15, 2016.
  22. ^ a b Draft Oil Shale and Tar Sands Resource Management Plan Amendments to Address Land Use Allocations in Colorado, Utah, and Wyoming and Programmatic Environmental Impact Statement, Volume 1 Archived May 12, 2009, at the Wayback Machine, United States Department of the Interior, Bureau of Land Management, dated December 2007, accessed 2008-04-22.

External links

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