Montana Bighorn Sheep

Unit S620 (Little Rockies)

Montana Hunting Guide — Bighorn Sheep

Unit S620 lies in Phillips 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.

View Draw Odds Montana Hunting Guide

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Answer a few questions about your tag, your season and your rig, and the Field Intelligence Report builds a print-ready Montana Unit S620 guide around your hunt: three ranked spots with morning, afternoon and evening plays, a day-by-day plan, topo maps with every pin numbered, a camp and access plan, the legal and retrieval rules for this unit, shot discipline, a meat-care and pack-out plan, and a pre-trip checklist. Every coordinate sits on land recorded as public.

Bighorn Sheep guide

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Bighorn Sheep Hunting in Unit S620

Unit S620 lies in Phillips 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 S620

Montana FWP's material on unit S620 stops at the boundary — there is no agency account of where its bighorn sheep live. 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 Phillips County.

What bounds unit S620

Montana FWP draws unit S620 in Phillips County with a boundary that runs on US Highway 191, Route 66 and Highway 191, and on Coburn Butte, walked corner by corner in its hunting district legal descriptions. Read it as a frame, not as a hint about animals. 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: Antoine Butte, Old Scraggy Peak and Shell Butte

Named high points inside the unit include Antoine Butte at 5,730 feet, Old Scraggy Peak at 5,694 feet, Shell Butte at 5,690 feet, Beaver Mountain at 5,544 feet and Mission Peak at 5,500 feet. Several carry a public-land flag in our data, which makes them the first places to try for a view. Sheep on lower country still need rock, and on a desert unit the rock is the whole hunt.

Holding ground: Goslin Gulch, Chimney Gulch and Dry Gulch

Below them sit Goslin Gulch at 3,793 feet, Chimney Gulch at 3,457 feet, Dry Gulch at 3,179 feet, Pony Gulch at 4,149 feet and Mill Gulch at 4,050 feet. These are the folds worth watching, and the ones other hunters walk past on the way to somewhere steeper. Reaching the edge of one before light beats reaching its middle at noon.

Unit S620 terrain and land status

Measured from the unit boundary, not from the agency write-up

Named features inside the unit

Glass from: Antoine Butte (5,730 ft), Old Scraggy Peak (5,694 ft), Beaver Mountain (5,544 ft), Mission Peak (5,500 ft)

Holding ground: Pony Gulch (4,149 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 S620

Montana FWP publishes no bighorn sheep success figure for unit S620 that we can tie to this unit alone, so we won't quote one. The plan: pick a glassing position across from the escape terrain and stay on it for hours, not minutes.

Glassing from Indian Peak, Saddle Butte and Sugar Loaf Butte

Take a position on one of Indian Peak (5,160 ft), Saddle Butte (5,151 ft), Sugar Loaf Butte (5,010 ft) and Spring Park Butte (4,479 ft) and be on it before light. Work the morning with the air falling away from you, then accept that by mid-morning the wind has reversed and the plan has to change with it. Give a basin forty minutes before you decide it is empty. On the rut hunts, late hunts put rams with ewe groups on the same rock.

The way in: US Highway 191, Route 66 and Highway 191

We have no road inventory for this unit, so the only routes we can name are the ones Montana FWP draws the boundary with: US Highway 191, Route 66 and Highway 191. Those are its edges, not its interior — useful because they are where you leave the pavement, and useless for telling you what the inside is like. Pick the edge nearest the country you mean to hunt and work in from it on foot, rather than driving the perimeter looking for a way through.

A first plan from the pins on this page

The map above marks Antoine Butte, Old Scraggy Peak, Beaver Mountain and Mission Peak as places to see from, and Pony Gulch as ground to watch. Each pin is a named feature verified to fall inside the unit line, not a spot anyone has hunted. Take the pair you can reach on one road and treat the rest as a second trip.

What we can't tell you

Some of the ground named above carries no land-status flag we trust, so check ownership on a current layer before you hunt it. We have no bighorn sheep success figure for this unit that survives checking against Montana FWP's own harvest and hunter counts, and we would rather say so than print a statewide average as though it were measured here.

Montana rules that decide your day

Summarised from FWP regulations. They change — read the current regulations and your permit-tag before you hunt.

Legal shooting hours

Big game may be taken from half an hour before sunrise to half an hour after sunset.

Motorized retrieval

Montana has no general off-road retrieval allowance; travel stays on open routes.

Tagging

Validate the tag and attach it to the carcass before moving the animal.

Leaving meat

Wasting game meat is illegal.

Where you may not shoot

Occupied structures — No discharging a firearm within 150 yards of an occupied dwelling without permission, and no shooting from or across a public road.

Bighorn Sheep: where to put the shot

Broadside or quartering away, on the back edge of the front leg about a third of the way up the body.

Shots to refuse

Nothing behind or overlapping the animal you picked.
Your maximum range is the farthest you have shot a three-shot group into a paper plate from the rest you are carrying.
Pass the shot you are talking yourself into.

Plan the carry: roughly 40– 120 lb of boned-out meat, before head and hide — two large coolers. ProHunt planning estimate, not an agency figure.

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Bighorn Sheep Success Rates

Montana FWP's 2023 harvest estimates carry no bighorn sheep row for unit S620 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

Draw odds data not available for this specific unit/species combination in our database.

Search Montana Draw Odds

Montana FWP's draw recap has no bighorn sheep record we can tie to unit S620. 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.

Frequently Asked Questions

Where is Colorado unit S620?

Unit S620 lies in Phillips County. Montana FWP draws unit S620 with a boundary that runs on US Highway 191, Route 66 and Highway 191, and on Coburn Butte, walked corner by corner in its hunting district legal descriptions.

What is the bighorn sheep success rate in unit S620?

Montana FWP publishes no bighorn sheep success figure we can tie to unit S620 on its own — the 2023 harvest tables either omit the unit or report it in a grouping we could not read back to it reliably. Rather than quote a statewide average as though it were measured here, we say so. Check Montana FWP's current harvest estimates before you apply.

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Sources & Verification

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