Unit S421 (Deep Creek)
Montana Hunting Guide — Bighorn Sheep
Unit S421 lies in Teton County. Montana FWP publishes no per-unit bighorn sheep success figure we can verify for this unit. Check land status on a current map before you plan a route.
Build your own PDF hunt guide for Unit S421
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Bighorn Sheep Hunting in Unit S421
Unit S421 lies in Teton County. Montana FWP publishes no per-unit bighorn sheep success figure we can verify for this unit. Check land status on a current map before you plan a route.
Where to Find Bighorn Sheep in Unit S421
What Montana FWP publishes for unit S421 is a boundary, not a bighorn sheep map. So the ground below is the unit's own and the read on where to start is ours, labelled as such. The unit lies in Teton County.
The lines of the unit: Teton Canyon, Erosion Creek and Miners Creek
Montana FWP draws unit S421 in Teton County with a boundary that runs on USFS Trail 128 and USFS 114, and on Teton Canyon, Erosion Creek, Miners Creek and Biggs Creek, walked corner by corner in its hunting district legal descriptions. It tells you the shape of the unit and nothing about its inhabitants. What it does give you is the way in: the rivers and highways you cross, and the divides that decide which drainage you end up in.
High ground inside the line: Rocky Mountain, Old Baldy and Mount Lockhart
Named high points inside the unit include Rocky Mountain at 9,376 feet, Old Baldy at 9,133 feet, Mount Lockhart at 8,658 feet, Teton Peak at 8,387 feet and Lonesome Ridge at 8,206 feet. Several carry a public-land flag in our data, which makes them the first places to try for a view. Sheep need rock to escape into and will not stand far from it.
Holding ground: Ninemile Park, Slim Gulch and Round Park
Below them sit Ninemile Park at 6,005 feet, Slim Gulch at 5,981 feet, Round Park at 5,797 feet, Lone Park at 5,691 feet and Garners Gulch at 5,643 feet. These are the folds worth watching, and the ones other hunters walk past on the way to somewhere steeper. Pick the one with the least road on its upwind side.
Unit S421 terrain and land status
Measured from the unit boundary, not from the agency write-up
Named features inside the unit
Glass from: Rocky Mountain (9,376 ft), Old Baldy (9,133 ft), Mount Lockhart (8,658 ft), Teton Peak (8,387 ft)
Holding ground: Headquarters Creek Pass (7,681 ft), Route Creek Pass (7,295 ft), Tenmile Park (6,242 ft)
Every one of these was tested against the unit polygon before it went on the map. They are starting points, not agency recommendations.
How to Hunt Bighorn Sheep in Unit S421
Bighorn Sheep Success Rates
Montana FWP's 2023 harvest estimates carry no bighorn sheep row for unit S421 that we can read back to this unit on its own. Where the agency reports a unit inside a grouping, or prints a table our parser cannot resolve to a single column, we leave the number out rather than publish a statewide average as though it had been measured here. Montana FWP's current harvest estimates are the place to check before you apply.
Bighorn Sheep Draw Odds
| Season | Tags | Applicants | Draw % | Pts (n/p) |
|---|---|---|---|---|
| Rifle — General either sex (resident) | 1 | 223 | 0.4% | — |
Data from 2025 draw results. Each row is one residency pool — read the label before the number. This agency publishes no point thresholds, so the Pts column stays blank and these are pool odds, not what a point total draws.
Open in Draw Odds EngineMontana FWP's draw recap has no bighorn sheep record we can tie to unit S421. That usually means the licence is sold over the counter, is issued under a hunt code covering several units, or was not offered in the years we hold. Rather than estimate a point requirement, we leave it blank — check Montana FWP's own draw recap for the hunt code you mean to apply for.
Unit Logistics & Expectations
Frequently Asked Questions
Where is Colorado unit S421?
What is the bighorn sheep success rate in unit S421?
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Every fact on this page is tied to a primary source below. Last fact-checked 2026-10-24.
- Montana FWP Hunting District Legal Descriptions, 2026/2027 — sheep hunting districts (pp. 10-13) — Montana Fish, Wildlife & Parks · supports: GMU boundary description, Counties the unit lies in · accessed 2026-10-24
- FWP hunting district feature services — deer/elk, antelope, moose, bighorn sheep and mountain goat districts (2026 and 2027 seasons) — Montana Fish, Wildlife & Parks · supports: Mapped extent of the unit, Which named ground falls inside the unit line · accessed 2026-10-24