Categorical Exclusion · Bozeman Ranger District · updated 6/11/2026
Located north of Big Sky, MT, approximately from Lava to Karst along U.S. Highway 191. Montana Principal Meridian, Gallatin County, Montana, T5S R4E secs. 9, 14, 15, 23, 24, 25, and 36 and T6S R4E secs. 12 and 13. · Gallatin, Montana
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.
Special use management
NEPA Start Date
7/22/2025
Finding/Decision Date
6/11/2026
NEPA / regulatory detail
| Categorical Exclusion | USDA-27d-USFS |
| Decision Signed Date | 6/11/2026 |
Environmental Assessment · Gardiner Ranger District · updated 5/26/2026 · decision 4/2027 (Estimated)
IIJA emergency action project to address wildfire risk and insect and disease outbreaks in project area through fuels reduction and forest health treatments.
NEPA Start Date
4/10/2026
Project documents
Environmental Assessment · Sioux Ranger District · updated 5/26/2026 · decision 4/2027 (Estimated)
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.
NEPA Start Date
4/17/2026
Project documents
Environmental Assessment · Bozeman Ranger District · updated 5/26/2026
7,905 acres south of Bozeman in Gallatin County, MT. The project area spans between Hyalite Canyon Rd and the South Cottonwood Cr Trail, north of Hyalite Reservoir and Fox Creek. · Gallatin, Montana
Fuel management and water source restoration in a portion of the high-risk Bozeman Fireshed. The project area is 7,905 acres south of Bozeman, MT and about 5,500 treatment acres.
Fuels management
Finding/Decision Date
4/9/2026
Project documents
NEPA / regulatory detail
| Decision Signed Date | 4/9/2026 |
Categorical Exclusion · Beartooth Ranger District · updated 5/26/2026
Approx 2 mi west of Red Lodge, MT. Along Forest Service boundary extending north from West Fork Rock Creek, within/adjacent to Red Lodge Mountain Ski Area, and surrounding Timbercrest recreation area. · Carbon, Montana
Reduce wildfire behavior and provide a safer environment to conduct wildfire suppression. Treat 2,100 acres through commercial harvest, small tree treatments such as cutting/piling, prescribed fire, with 5 mi temp road construction/decommissioning.
Fuels management
Finding/Decision Date
4/3/2026
Project documents
NEPA / regulatory detail
| Categorical Exclusion | Section 605 of HFRA (16 U.S.C.6591d) |
| Decision Signed Date | 4/3/2026 |
Environmental Impact Statement · Custer Gallatin National Forest · updated 5/15/2026 · decision 5/2028 (Estimated)
50 miles south of Columbus Montana
The Stillwater Mine Plan of Operations amendment proposes to continue production of platinum group metals via underground mining operations for an additional 36-42 years through the expansion of existing surface infrastructure and construction.
Minerals and geology
NEPA Start Date
5/15/2026
Project documents
Categorical Exclusion · Beartooth Ranger District · updated 5/11/2026
The Burnt Mountain project is adjacent to the at-risk community of Red Lodge, Montana on the Beartooth Ranger District of the Custer Gallatin National Forest (CGNF). · Carbon, Montana
The Burnt Mountain project is adjacent to the at-risk community of Red Lodge, Montana on the Beartooth Ranger District of the Custer Gallatin National Forest (CGNF). The project area includes approximately 4,579 acres.
Forest productsFuels management
Finding/Decision Date
4/3/2026
Project documents
NEPA / regulatory detail
| Categorical Exclusion | Section 605 of HFRA (16 U.S.C.6591d) |
| Decision Signed Date | 4/3/2026 |
Environmental Impact Statement · Custer Gallatin National Forest All Units · updated 5/1/2026
The project is located within the Stillwater River drainage near Nye, Montana, involving both private and National Forest System lands. · Stillwater, Montana
The Stillwater Mine Plan of Operations amendment proposes to continue production of platinum group metals via underground mining operations for an additional 36-42 years through the expansion of existing surface infrastructure and construction.
Minerals and geology
NOI in Federal Register
06/2026 (Estimated)
DEIS NOA in Federal Register
06/2027 (Estimated)
FEIS NOA in Federal Register
04/2028 (Estimated)
Objection Period Start
01/2028 (Estimated)
Decision
04/2028 (Estimated)
Implementation
06/2028 (Estimated)
Project documents
NEPA / regulatory detail
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | 218 (2013) Non-HFRA |
| Project Activity | Minerals Or Geology Plans Of Operations |
| Forests | Custer Gallatin National Forest |
| Districts | Beartooth Ranger District |
| Legal Land Description | Not Applicable |
Categorical Exclusion · Beartooth Ranger District · updated 4/20/2026
Rock Creek drainage. Lake Fork and Parkside Campgrounds · Carbon, Montana
Bank stabilization project to address damage from the 2022 floods. To view documents related to this proposal, please copy and paste this link into your internet browser https://usfs-public.box.com/s/cakqfx5gxt962ykbx1ugpth167ine1e1
Recreation management
NEPA Start Date
9/29/2025
Finding/Decision Date
2/9/2026
NEPA / regulatory detail
| Categorical Exclusion | USDA-44d-USFS |
| Decision Signed Date | 2/9/2026 |
Categorical Exclusion · Beartooth Ranger District · updated 4/20/2026
Stillwater River at Sioux Charlie Trailhead: 45.351303°: -109.902816° · Stillwater, Montana
To view documents related to this proposal, please copy and paste this link into your internet browser https://usfs-public.box.com/s/qzag21g8lax5uzkbcq99sj7m5kshsi3r . Adress flood risk on Nye Road and Sioux Charlie Trailhead in response to damage from 2022 floods.
Vegetation management (other than forest products)
NEPA Start Date
10/1/2025
Finding/Decision Date
3/3/2026
NEPA / regulatory detail
| Categorical Exclusion | USDA-47d-USFS |
| Decision Signed Date | 3/3/2026 |
Environmental Assessment · Beartooth Ranger District · updated 2/18/2026
Pryor Mountain Wild Horse Territory on the border of Wyoming and Montana in the Pryor Mountains · Carbon, Montana
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
Special area management
Objection Period Start
04/09/2025
Decision
07/2025 (Estimated)
Implementation
11/2025 (Estimated)
Project documents
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 |
Decision Memo · Custer Gallatin National Forest All Units · updated 6/10/2025
About 10 miles southeast of Bozeman including Goose Creek Road and the Chestnut Mountain Trail. · Gallatin; Park, Montana
Create and maintain linear fuel breaks along existing roads and trails in the Goose Creek area, which is about 10 miles southeast of Bozeman.
Fuels management
Decision
06/2025 (Estimated)
Implementation
06/2025 (Estimated)
Project documents
NEPA / regulatory detail
| Categorical Exclusion | 32.3(11) |
| Special Authority | 2021 Infrastructure: Fuel Break Ce |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Fuel Treatments (Non-Activity Fuels); Timber Sales (Green) |
| Forests | Custer Gallatin National Forest |
| Districts | Bozeman Ranger District |
| Legal Land Description | Not Applicable |
Decision Memo · Hebgen Lake Ranger District · updated 6/2/2025
Rec res on the madison arm of hebgen lake · Gallatin, Montana
Willoughby submitted improvement requests including: septic install, well, foundation for main cabin, cabin addition, new outbuilding, install 100' of electric lines
Watershed managementSpecial use management
Decision
06/2025 (Estimated)
Implementation
06/2025 (Estimated)
Project documents
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 |
| Willoughby Recreation Residence improvements Decision Memo | Decision Signed Date: 06/02/2025 |
| Forests | Custer Gallatin National Forest |
| Districts | Hebgen Lake Ranger District |
| Legal Land Description | T13S, R5E, Sec. 32 |
Environmental Assessment · Custer Gallatin National Forest All Units · updated 1/21/2025
3,855 acres of federal lands for about 6,110 acres of non-Federal lands in SW and South-Central Montana, in the Crazy Mountains W. of Melville and in the Madison Mountains S. of Big Sky · Madison; Park; Sweet Grass, Montana
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.
Land ownership managementLand acquisition
Comment Period
11/09/2022
Objection Period Start
09/27/2023
Decision
01/2025 (Estimated)
Implementation
02/2025 (Estimated)
Project documents
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 |
Decision Memo · Sioux Ranger District · updated 3/29/2023
Southeast of Ekalaka, MT in T. 1 N., R. 59 E., Sec. 19 and 20; and T. 2 S., R. 61 E., Sec. 4, 9, and 10.%u200B · Carter, Montana
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.
Special use management
Scoping Start
03/2023 (Estimated)
Decision
04/2023 (Estimated)
Implementation
06/2023 (Estimated)
Project documents
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 |