The Stillwater Mine proposes to continue production of platinum group metals for an additional 36-42 years by expanding existing surface infrastructure. Please copy and paste this link in your browser to view project related documents: https://usfs-public.box.com/s/903zqyxu4qekivxq60544ts25n032qvt
Custer Gallatin National Forest
Fiber optic cable installation within existing utility and road rights-of-way along U.S. Highway 191 in 3 Rivers Telephone Cooperative's Big Sky Exchange. The project area is located approximately from Lava to Karst for 19.2 miles with a 10-foot right-of-way totaling 11.3 acres.
NEPA / regulatory detail
| Categorical Exclusion | USDA-27d-USFS |
| Decision Signed Date | 6/11/2026 |
IIJA emergency action project to address wildfire risk and insect and disease outbreaks in project area through fuels reduction and forest health treatments.
The Sioux Ranger District is proposing commercial harvest on approximately 1,643 acres; fuels treatments on approximately 4,354 acres using mechanical or hand thinning; and prescribed fire treatments on 3,106 acres, with some acreages proposed for more than one treatment.
Reduce the fire intensity risk within the wildland urban interface surrounding Cooke City and Silver Gate. While also increasing forest resiliency to insect and disease infestation.
NEPA / regulatory detail
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | 218 (2013) Non-HFRA |
| Project Activity | Fuel Treatments (Non-Activity Fuels); Forest Vegetation Improvements; Timber Sales (Salvage); Timber Sales (Green) |
| Forests | Custer Gallatin National Forest |
| Districts | Gardiner Ranger District |
| Legal Land Description | T 09 S, R 14 E Sections 2, 11-15, 23-27, 34-36 and T 09 S, R 15 E, Sections 6, 7, 17-22, 28-30, 33-34 Montana and Idaho Principal and Boise Meridians. |
Project updates Herd Management Area Plan, including AML and fertility control, and gather/removal activities to maintain the desired AML for portion of the herd and range that fall under Forest Service authority
NEPA / regulatory detail
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | 219 (2012) |
| Project Activity | Special Area Management |
| Forests | Custer Gallatin National Forest |
| Districts | Beartooth Ranger District |
| Legal Land Description | Not Applicable |
Land exchange between federal and non-federal lands in the Crazy Mountains west of Melville, MT and the Madison Range south of Big Sky, MT. Also includes trail construction and trailhead improvements.
NEPA / regulatory detail
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | 218 (2013) Non-HFRA |
| Project Activity | Land Exchanges |
| Forests | Custer Gallatin National Forest |
| Districts | Yellowstone Ranger District; Bozeman Ranger District |
| Legal Land Description | Federal-T.4N., R.12E.Sections 8,10,12,14,24,36; T.4N., R.12E. Section2; T7S,R2ESections22,25,26 Non-Fed-T4N,R12E.Section 5,7,15,17,23,27,35,33;T4N,R11E Section13; T7S,R2E.Section4; T.3N,R.11Section13 |
Installation of fiber optic line in existing right-of-way (2.13 acres) and new proposed right-of-way (4.19 acres). Methods will include direct burial, with common plowing, trenching and boring construction techniques.
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (3), 36 Cfr 220.6(E)(3) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Special Use Authorizations |
| Forests | Custer Gallatin National Forest |
| Districts | Sioux Ranger District |
| Legal Land Description | Not Applicable |