Idaho · 102 of 1,120 · BLM's list, read Oct 20, 2026
Idaho
102 areas, 710,351 acres. At least 89 of them have a claim, lease or right of way inside the line, or a grazing allotment across it.
Every Area of Critical Environmental Concern BLM's Idaho office holds, the ones with the most inside the line first. Each row opens the area's page: its line, what BLM found there and what sits inside it.
Every area, the most inside first
- Snake River144,078 acres · at least 1 active mining claim and 4 more BLM lists as Filed, 89 rights of way, 61 grazing allotments covering part of it151inside
- American River Historic Sites District6,347 acres · at least 98 active mining claims and 79 more BLM lists as Filed, 24 rights of way, 5 grazing allotments covering part of it127inside
- Upper Salmon River5,145 acres · at least 1 active mining claim and 3 more BLM lists as Filed, 25 rights of way, 23 grazing allotments covering part of it49inside
- Henrys Lake35,870 acres · 31 rights of way, 12 grazing allotments covering part of it43inside
- Long-Billed Curlew Habiat27,529 acres · 34 rights of way, 7 grazing allotments covering part of it41inside
- Lower Salmon River14,367 acres · 11 rights of way, 27 grazing allotments covering part of it38inside
- Boise Front15,093 acres · at least 7 active mining claims and 5 more BLM lists as Filed, 21 rights of way, 7 grazing allotments covering part of it35inside
- Owyhee River Bighorn Sheep Habitat Area57,138 acres · at least 21 active mining claims, 4 grazing allotments covering part of it25inside
- Nine Mile Knoll41,641 acres · 10 rights of way, 8 grazing allotments covering part of it18inside
- Hixon CSTG Habitat18,687 acres · 6 rights of way, 11 grazing allotments covering part of it17inside
- Owyhee River Bighorn Sheep Habitat Area143,911 acres · at least 1 active mining claim, 3 rights of way, 10 grazing allotments covering part of it14inside
- Upper Lolo Creek1,626 acres · 8 rights of way, 5 grazing allotments covering part of it13inside
- Stump Creek2,475 acres · 2 rights of way, 10 grazing allotments covering part of it12inside
- Boulder Creek ONA6,987 acres · at least 4 mining claims BLM lists as Filed, 10 grazing allotments covering part of it10inside
- Big Beaver - Little Beaver6,775 acres · at least 2 mining claims BLM lists as Filed, 1 right of way, 9 grazing allotments covering part of it10inside
- Birch Creek8,648 acres · at least 4 mining claims BLM lists as Filed, 6 rights of way, 2 grazing allotments covering part of it8inside
- Donkey Hills29,710 acres · 1 right of way, 7 grazing allotments covering part of it8inside
- Elk Mountain12,671 acres · 8 grazing allotments covering part of it8inside
- Herd Creek Watershed16,887 acres · 3 rights of way, 4 grazing allotments covering part of it7inside
- Lone Bird9,970 acres · at least 3 active mining claims, 1 right of way, 3 grazing allotments covering part of it7inside
- Salmon Falls Creek Canyon2,662 acres · 1 right of way, 6 grazing allotments covering part of it7inside
- Pennal Gulch5,832 acres · 2 rights of way, 4 grazing allotments covering part of it6inside
- Upper Bruneau Canyon17,658 acres · 5 grazing allotments covering part of it5inside
- Lower Lolo Creek3,679 acres · 5 grazing allotments covering part of it5inside
- Salmon Falls Creek Canyon2,430 acres · 5 grazing allotments covering part of it5inside
- Coal Mine Basin RNA2,397 acres · at least 40 mining claims BLM lists as Filed, 4 grazing allotments covering part of it4inside
- Downey Watershed1,856 acres · 1 right of way, 3 grazing allotments covering part of it4inside
- Sevenmile Creek1,035 acres · 2 rights of way, 2 grazing allotments covering part of it4inside
- French John Hill RNA146 acres · 1 right of way, 3 grazing allotments covering part of it4inside
- Tee-Maze RNA10,742 acres · 2 rights of way, a grazing allotment covering part of it3inside
- North Fork Juniper Woodland ONA4,412 acres · 3 grazing allotments covering part of it3inside
- McKinney Butte RNA3,755 acres · 3 grazing allotments covering part of it3inside
- Indian Rocks3,577 acres · 2 rights of way, a grazing allotment covering part of it3inside
- King Hill Creek RNA2,511 acres · 3 grazing allotments covering part of it3inside
- North Menan Butte781 acres · 3 rights of way3inside
- Oneida Narrows RNA615 acres · 3 grazing allotments covering part of it3inside
- Oregon-California Trail Junction522 acres · 3 grazing allotments covering part of it3inside
- Cinnabar Mountain RNA278 acres · 3 grazing allotments covering part of it3inside
- Trail Creek RNA232 acres · 3 grazing allotments covering part of it3inside
- Lucile Caves RNA136 acres · 2 rights of way, a grazing allotment covering part of it3inside
- Cheatbeck Canyon RNA100 acres · 1 right of way, 2 grazing allotments covering part of it3inside
- East Fork Salmon River Bench RNA78 acres · at least 2 mining claims BLM lists as Filed, 2 grazing allotments covering part of it2inside
- Malm Gulch/Germer Basin5,415 acres · 2 grazing allotments covering part of it2inside
- Bowen Canyon Bald Eagle Sanctuary2,298 acres · 2 grazing allotments covering part of it2inside
- The Badlands RNA1,835 acres · 2 grazing allotments covering part of it2inside
- Pleasant Valley Table RNA1,469 acres · 2 grazing allotments covering part of it2inside
- Cronk's Canyon1,124 acres · 2 grazing allotments covering part of it2inside
- Herd Creek Watershed RNA1,056 acres · 2 grazing allotments covering part of it2inside
- Sand Point960 acres · 1 right of way, a grazing allotment covering part of it2inside
- Thousand Springs907 acres · 1 right of way, a grazing allotment covering part of it2inside
- Jump Creek Canyon613 acres · 2 grazing allotments covering part of it2inside
- Antelope Flat RNA588 acres · 2 grazing allotments covering part of it2inside
- East Fork American River569 acres · 2 grazing allotments covering part of it2inside
- Sun Peak554 acres · 2 grazing allotments covering part of it2inside
- Hixon CSTG Habitat easement439 acres · 2 grazing allotments covering part of it2inside
- North Menan Butte RNA344 acres · 2 rights of way2inside
- Granite Pass/Goose Creek Trail295 acres · 2 grazing allotments covering part of it2inside
- Travertine Park184 acres · 2 grazing allotments covering part of it2inside
- China Cup Butte RNA159 acres · 2 grazing allotments covering part of it2inside
- Box Canyon124 acres · 1 right of way, a grazing allotment covering part of it2inside
- Summit Creek116 acres · 1 right of way, a grazing allotment covering part of it2inside
- Vineyard Creek Natural Area114 acres · 1 right of way, a grazing allotment covering part of it2inside
- Goose Creek Mesa RNA104 acres · 2 grazing allotments covering part of it2inside
- Playas38 acres · 2 grazing allotments covering part of it2inside
- Travertine Park RNA23 acres · 2 grazing allotments covering part of it2inside
- Sand Hollow RNA3,332 acres · a grazing allotment covering part of it1inside
- Malm Gulch/Germer Basin RNA2,409 acres · a grazing allotment covering part of it1inside
- St. Anthony Sand Dunes RNA1,824 acres · a grazing allotment covering part of it1inside
- Lower Bruneau Canyon963 acres · a grazing allotment covering part of it1inside
- Peck's Canyon RNA782 acres · a grazing allotment covering part of it1inside
- Jim Sage Canyon RNA654 acres · a grazing allotment covering part of it1inside
- Dry Gulch RNA539 acres · a grazing allotment covering part of it1inside
- Sommercamp Butte RNA440 acres · a grazing allotment covering part of it1inside
- Petticoat Peak RNA403 acres · a grazing allotment covering part of it1inside
- Robbers Roost Creek RNA400 acres · a grazing allotment covering part of it1inside
- Cronk's Canyon RNA371 acres · a grazing allotment covering part of it1inside
- Game Creek RNA360 acres · a grazing allotment covering part of it1inside
- Cottonwood Creek326 acres · a grazing allotment covering part of it1inside
- Triplet Butte312 acres · a grazing allotment covering part of it1inside
- Mcbride Creek RNA262 acres · a grazing allotment covering part of it1inside
- Pine Gap RNA238 acres · a grazing allotment covering part of it1inside
- Summit Creek RNA194 acres · a grazing allotment covering part of it1inside
- The Tules RNA114 acres · a grazing allotment covering part of it1inside
- Formation Cave RNA70 acres · 1 right of way1inside
- Pine Creek Island RNA54 acres · a grazing allotment covering part of it1inside
- Long Gulch RNA47 acres · a grazing allotment covering part of it1inside
- Dairy Hollow RNA44 acres · a grazing allotment covering part of it1inside
- Swan Island RNA38 acres · a grazing allotment covering part of it1inside
- Skookumchuck RNA8.7 acres · a grazing allotment covering part of it1inside
- Lund Creek RNA3,220 acres · nothing placed inside0inside
- Captain John Creek RNA1,322 acres · nothing placed inside0inside
- Substation Tract438 acres · nothing placed inside0inside
- Wapshilla Ridge RNA402 acres · nothing placed inside0inside
- Thousand Springs RNA233 acres · nothing placed inside0inside
- Hideaway Islands RNA76 acres · nothing placed inside0inside
- Cottonwood Islands RNA43 acres · nothing placed inside0inside
- Farnham Forest RNA33 acres · nothing placed inside0inside
- Reid Canal Island RNA29 acres · nothing placed inside0inside
- Pulaski Tunnel ACEC27 acres · nothing placed inside0inside
- Windy Bay RNA16 acres · nothing placed inside0inside
- Mud Flat Oolite5 acres · nothing placed inside0inside
- Old Juniper Townsite3.4 acres · nothing placed inside0inside
SheetIdahoLines102Acres710,351Inked1981 to 2023ReadOct 20, 2026
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