Custer Gallatin National Forest — Project Detail

8 projects with crawled detail · milestones · contacts · documents

Custer Gallatin National Forest

R01 Northern · 8 projects · crawled 2026-10-17
Developing Proposal 4 Completed 4
Environmental Assessment 5 Environmental Impact Statement 1 Categorical Exclusion 1 Decision Memo 1
7 with documents 7 with comments page
Environmental Impact Statement · Custer Gallatin National Forest · updated 6/19/2026 · decision 5/2028 (Estimated)
50 miles south of Columbus Montana · Stillwater, Montana

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

Minerals and geology
NEPA Start Date
5/15/2026
Finding/Decision Date
Project documents
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
Callie Ackerman-Jasper · callie.ackerman-jasper@usda.gov
NEPA / regulatory detail
Categorical ExclusionUSDA-27d-USFS
Decision Signed Date6/11/2026
Bear Palmer Developing Proposal
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
Finding/Decision Date
Project documents
Todd Erdody · todd.erdody@usda.gov
Chalk Buttes Developing Proposal
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
Finding/Decision Date
Project documents
Jabus Smith · jabus.smith@usda.gov
Environmental Assessment · Gardiner Ranger District · updated 5/4/2026
In the area of Silvergate and Cooke City Montana. · Gallatin, Montana

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.

Forest productsVegetation management (other than forest products)Fuels management
Scoping Start
07/01/2024
Comment Period
03/26/2025
Objection Period Start
07/11/2025
Decision
12/2025 (Estimated)
Implementation
09/2026 (Estimated)
Project documents
Clint Kolarich · clint.kolarich@usda.gov
NEPA / regulatory detail
Special AuthorityNot Applicable / Other
Notice and Comment Regulation218 (2013) Non-HFRA
Project ActivityFuel Treatments (Non-Activity Fuels); Forest Vegetation Improvements; Timber Sales (Salvage); Timber Sales (Green)
ForestsCuster Gallatin National Forest
DistrictsGardiner Ranger District
Legal Land DescriptionT 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.
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
Scoping Start
04/10/2020
Objection Period Start
04/09/2025
Decision
07/2025 (Estimated)
Implementation
11/2025 (Estimated)
Project documents
Amy Haas · amy.haas@usda.gov
NEPA / regulatory detail
Special AuthorityNot Applicable / Other
Notice and Comment Regulation219 (2012)
Project ActivitySpecial Area Management
ForestsCuster Gallatin National Forest
DistrictsBeartooth Ranger District
Legal Land DescriptionNot Applicable
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
Scoping Start
10/31/2022
Comment Period
11/09/2022
Objection Period Start
09/27/2023
Decision
01/2025 (Estimated)
Implementation
02/2025 (Estimated)
Project documents
Anna Ball · anna.ball@usda.gov
NEPA / regulatory detail
Special AuthorityNot Applicable / Other
Notice and Comment Regulation218 (2013) Non-HFRA
Project ActivityLand Exchanges
ForestsCuster Gallatin National Forest
DistrictsYellowstone Ranger District; Bozeman Ranger District
Legal Land DescriptionFederal-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
Donald Ulrich · Donald.Ulrich@usda.gov
NEPA / regulatory detail
Categorical Exclusion32.2 (3), 36 Cfr 220.6(E)(3)
Special AuthorityNot Applicable / Other
Notice and Comment RegulationNot Subject to Regulations
Project ActivitySpecial Use Authorizations
ForestsCuster Gallatin National Forest
DistrictsSioux Ranger District
Legal Land DescriptionNot Applicable