Hunting districts / Bighorn sheep
Bighorn sheep hunting district · Region 4 (Great Falls)
District 421
Montana hunting district 421 (Bighorn sheep), FWP Region 4 (Great Falls): 150 sq mi in Teton County; 100% USFS, BLM, state trust and FWP land (mostly Helena-Lewis and Clark National Forest); median elevation 6,762 ft; FWP estimated 1 sheep harvested in 2025.
What stands out
- Among the most public of 36 bighorn sheep districts: 100% USFS, BLM, state trust and FWP land. MSL Public Lands (calculated)
- Among the most wilderness of 36 bighorn sheep districts: 71% designated wilderness. USFS wilderness boundaries (calculated)
- Among the smallest of 36 bighorn sheep districts: 150 square miles. FWP district boundary
Publicly administered land
| US Forest Service | 100.0% |
Area of Montana State Library 'Montana Public Lands' polygons (derived from the Montana Cadastral Framework, Department of Revenue ownership records) intersected with the FWP district boundary, measured in NAD83(2011) Montana State Plane (EPSG:6514). Ownership is not access: some public land is closed to hunting or has no legal access.
Sheep harvest estimates
| Year | Hunters | Days | Total Harvest | Rams | Ewes | Lambs |
|---|---|---|---|---|---|---|
| 2025 | 1 | 2 | 1 | 1 | 0 | 0 |
| 2024 | 1 | 21 | 1 | 1 | 0 | 0 |
| 2023 | 1 | 3 | 1 | 1 | 0 | 0 |
| 2022 | 1 | 12 | 0 | 0 | 0 | 0 |
| 2021 | 1 | 15 | 1 | 1 | 0 | 0 |
| 2020 | 2 | 40 | 2 | 2 | 0 | 0 |
| 2019 | 2 | 30 | 2 | 2 | 0 | 0 |
| 2018 | 2 | 7 | 2 | 2 | 0 | 0 |
| 2017 | 2 | 10 | 2 | 2 | 0 | 0 |
| 2016 | 2 | 10 | 2 | 2 | 0 | 0 |
| 2015 | 2 | 19 | 2 | 2 | 0 | 0 |
| 2014 | 2 | 6 | 2 | 2 | 0 | 0 |
FWP estimates from the annual hunter harvest survey; they carry sampling error. "n/e": FWP did not estimate district-level hunter numbers that year. Boundaries of a numbered district can change between years.
Landscape
- Counties
- Teton County
- National forests
- Helena-Lewis and Clark National Forest
- Wilderness
- Bob Marshall Wilderness (71%)
- Wildlife management areas
- —
- Mountain ranges (GNIS)
- —
- Highest named summits
- Rocky Mountain (≈9,265 ft), Old Baldy (≈9,006 ft), Mount Lockhart (≈8,520 ft), Teton Peak (≈8,209 ft)
- Passes and gaps
- Headquarters Creek Pass, Route Creek Pass
- Towns and places
- —
Elevations sampled on a regular grid inside the district from AWS Terrain Tiles (Terrarium, zoom 10, ~105 m pixels; compiled from USGS 3DEP and SRTM). Approximate: summits read lower than their surveyed height.
Sources
- District boundary: Montana Fish, Wildlife & Parks hunting district layer.
- Public land: Montana State Library, Montana Public Lands (published 2026-10-06).
- Harvest: FWP Harvest Estimates, retrieved 2026-10-30.
- Places: USGS Geographic Names Information System. Wilderness and forests: USDA Forest Service.
- Elevation: AWS Terrain Tiles (USGS 3DEP, SRTM).
Live weather, snow, fire and access conditions are in the atlas card for this district.