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).

Areas of Critical Environmental Concern (ACEC) is a conservation ecology program in the western United States, managed by the Bureau of Land Management. The ACEC program was conceived in the 1976 Federal Lands Policy and Management Act (FLPMA), which established the first conservation ecology mandate for the BLM. The FLPMA mandate directs the BLM to protect important riparian corridors, threatened and endangered species habitats, cultural and archeological resources and unique scenic 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 (areas of avalanche, unstable soils, rockfall, etc.)

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, etc.
  • 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

Arizona

[2]

  • 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)

California

Colorado

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Main article: List of Areas of Critical Environmental Concern in Colorado

Idaho

Montana

(For more detailed descriptions of the following sites see)[6]

  • 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)[7]
  • 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)[8]
  • 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)

New Mexico

  • La Cienega[9]
  • 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

[10]

  • 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[11]

Utah

[12]

  • 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

[12]

  • 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. ↑ Arizona Strip Proposed Plan/FEIS, 2007. Chapter 3: Affected Environment, Areas of Critical Concern. Bureau of Land Management. [1] (Accessed 2012-01-30)
  3. ↑ http://www.blm.gov/ca/st/en/fo/folsom/redhillshomepg1.html . accessed 6/22/2010
  4. ↑ 4.0 4.1 4.2 4.3 Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ 5.0 5.1 Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ Community Celebrates Expansion of La Cienega ACEC, United States Department of the Interior, Bureau of Land Management, Press Release dated 2007-08-23, accessed 2008-07-06.
  10. ↑ http://www.blm.gov/or/plans/wopr/ACEC/coobay_existing.php
  11. ↑ http://www.blm.gov/or/resources/recreation/tablerock/index.php
  12. ↑ 12.0 12.1 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, United States Department of the Interior, Bureau of Land Management, dated December 2007, accessed 2008-04-22.

External links

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