Unit A556 (Stillwater-Rock Creek)
Montana Hunting Guide — Pronghorn
Unit A556 lies in Carbon, Stillwater, Sweet Grass and Yellowstone counties. Montana FWP publishes no per-unit pronghorn success figure we can verify for this unit. Check land status on a current map before you plan a route.
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Pronghorn Hunting in Unit A556
Unit A556 lies in Carbon, Stillwater, Sweet Grass and Yellowstone counties. Montana FWP publishes no per-unit pronghorn success figure we can verify for this unit. Check land status on a current map before you plan a route.
Where to Find Pronghorn in Unit A556
Montana FWP's material on unit A556 stops at the boundary — there is no agency account of where its pronghorn live. Every place named below sits inside the unit line. Which of them holds animals in your season is for you to find out. The unit lies in Carbon, Stillwater, Sweet Grass and Yellowstone counties.
The lines of the unit: Yellowstone River, Bighorn Reservoir and Clark Fork
Montana FWP draws unit A556 in Carbon, Stillwater, Sweet Grass and Yellowstone counties with a boundary that runs on Interstate 90 and US Highway 87, and on Yellowstone River, Bighorn Reservoir, Clark Fork and Yellowstone Rock Creek, walked corner by corner in its hunting district legal descriptions. It tells you the shape of the unit and nothing about its inhabitants. Those features are what you will check against the map all week, and the divides among them are the ones that matter.
High ground inside the line: Granite Range, Castle Mountain and Mount Wood
Named high points inside the unit include Granite Range at 12,644 feet, Castle Mountain at 12,625 feet, Mount Wood at 12,621 feet, Castle Rock Spire at 12,537 feet and Whitetail Peak at 12,536 feet. Several carry a public-land flag in our data, which makes them the first places to try for a view. Pronghorn stay on the open rolling ground and leave the timber alone.
Holding ground: Silver Run Plateau, West Boulder Plateau and Red Lodge Creek Plateau
Below them sit Silver Run Plateau at 10,360 feet, West Boulder Plateau at 10,254 feet, Red Lodge Creek Plateau at 10,132 feet, Line Creek Plateau at 9,981 feet and Lake Plateau at 9,665 feet. These are the folds worth watching, and the ones other hunters walk past on the way to somewhere steeper. Work out which of them you can see from one position before you pick a camp.
Water: Quaker Spring, Boundary Draw Spring and Wildcat Spring Number Two
Named sources include Quaker Spring, Boundary Draw Spring, Wildcat Spring Number Two, Lundy Spring, Hudson Spring and South Robinson Spring. Nothing in the data says which of them run in autumn, so a scouting trip earns its fuel.
Unit A556 terrain and land status
Measured from the unit boundary, not from the agency write-up
Named features inside the unit
Glass from: Granite Range (12,644 ft), Castle Mountain (12,625 ft), Whitetail Peak (12,536 ft), Silver Run Peak (12,489 ft)
Holding ground: East Rosebud Plateau (11,566 ft), Sundance Pass (10,974 ft), Fishtail Plateau (10,717 ft), Quaker Spring, Boundary Draw Spring
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 Pronghorn in Unit A556
Pronghorn Success Rates
Montana FWP's 2023 harvest estimates carry no pronghorn row for unit A556 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.
Pronghorn Draw Odds
| Season | Tags | Applicants | Draw % | Pts (n/p) |
|---|---|---|---|---|
| Rifle — General either sex (resident) | 98 | 458 | 21.4% | — |
| Rifle — General either sex (nonresident) | 12 | 56 | 21.4% | — |
Data from 2024 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 pronghorn record we can tie to unit A556. 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 A556?
What is the pronghorn success rate in unit A556?
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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 — antelope hunting districts (pp. 5-9) — 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