Idaho Rocky Mountain Bighorn Sheep

Unit S20A (Bighorn Sheep Hunt Area 20A)

Idaho Hunting Guide — Rocky Mountain Bighorn Sheep

Hunt Area 20A is drawn from unit 20A, in Idaho and Valley counties. Named ground inside it runs from 7,390 to 9,340 feet. Idaho Fish and Game publishes no per-unit Rocky Mountain bighorn sheep success figure we can verify for this hunt area. Check land status on a current map before you plan a route.

View Draw Odds Idaho 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 Idaho Unit S20A 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.

Rocky Mountain Bighorn Sheep guide

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Rocky Mountain Bighorn Sheep Hunting in Unit S20A

Where to Find Rocky Mountain Bighorn Sheep in Hunt Area 20A

Idaho Fish and Game draws an exact line around hunt area 20A and says nothing about where the Rocky Mountain bighorn sheep stand inside it. Every place named below sits inside the hunt-area line. Which of them holds animals in your season is for you to find out.

What hunt area 20A is

Idaho Fish and Game describes Rocky Mountain bighorn sheep hunt area 20A as those portions of Unit 20A up-stream from and including the Butts Creek drainage to the Middle Fork of the Salmon River, and within the Middle Fork of the Salmon River. That makes it a piece of ground drawn for this hunt, not a unit, and the outline on this page is IDFG's own polygon for it rather than a unit outline. The units it is drawn from lie in Idaho and Valley counties. Idaho Fish and Game also uses the code 20A for deer hunts, and in its own words "hunt areas are different for each species" — those are other pieces of ground, and this page is the Rocky Mountain bighorn sheep area.

High ground inside the line: Cottonwood Butte, Twin Peak and Papoose Peak

Named high points inside the hunt area include Cottonwood Butte at 9,340 feet, Twin Peak at 9,231 feet, Papoose Peak at 8,962 feet, Farrow Mountain at 8,925 feet and Butts Creek Point at 7,842 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.

How high the named ground goes

Named ground inside hunt area 20A runs from 7,390 feet to 9,340 feet. Those are the heights of the features GNIS names, which bound the range from inside rather than measure it.

Unit S20A terrain and land status

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

Named features inside the unit

Glass from: Cottonwood Butte (9,340 ft), Twin Peak (9,231 ft), Papoose Peak (8,962 ft), Farrow Mountain (8,925 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 Rocky Mountain Bighorn Sheep in Hunt Area 20A

Idaho Fish and Game's per-unit harvest statistics describe general seasons on game management units, so there is no Rocky Mountain bighorn sheep success figure we can tie to hunt area 20A alone, and we won't borrow one from a unit. The plan: pick a glassing position across from the escape terrain and stay on it for hours, not minutes.

The 2025 and 2026 controlled hunts

Idaho Fish and Game's 2025 and 2026 rules list one controlled hunt for Rocky Mountain bighorn sheep in hunt area 20A.

Hunt 5005 — 4 tags, Aug 30–Oct 13

Dates and tag numbers are IDFG's as printed for that season, and IDFG changes hunt areas between years, so check the current booklet before you apply.

Applying for hunt area 20A

Idaho Fish and Game takes moose, bighorn sheep and mountain goat applications together, and anyone who applies for one of the three may not apply for another big game controlled hunt in the same year's first drawing, apart from the unlimited, extra, black bear and depredation hunts IDFG names. A hunter drawn for either bighorn may not apply for a bighorn tag for two years, and IDFG allows one Rocky Mountain and one California bighorn per hunter in a lifetime. Two hunters may apply together on one application. Idaho's draw is random, with no preference or bonus points to build.

Glassing from Papoose Peak, Farrow Mountain and Butts Creek Point

Take a position on one of Papoose Peak (8,962 ft), Farrow Mountain (8,925 ft), Butts Creek Point (7,842 ft) and Stoddard Creek Point (7,390 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. Work the glass in strips and go back over ground you already covered — animals appear in country you looked at ten minutes ago. On the rut hunts, late hunts put rams with ewe groups on the same rock.

A first plan from the pins on this page

The map above marks Cottonwood Butte, Twin Peak, Papoose Peak and Farrow Mountain as places to see from. Each pin is a named feature verified to fall inside the hunt-area line, not a spot anyone has hunted. Walk between two of them rather than driving between four, and you will learn more in a day.

What a day here costs you

Leave the truck earlier than you want to and you will hunt the best half-hour of the day.

What we can't tell you

We have no Rocky Mountain bighorn sheep success figure for this hunt area that survives checking against Idaho Fish and Game's own harvest and hunter counts, and we would rather say so than print a statewide average as though it were measured here.

Idaho rules that decide your day

Summarised from IDFG 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

Idaho has no general off-road retrieval allowance on federal ground; stay on designated routes.

Tagging

Validate the tag by cutting out the month and day, and attach it to the carcass before moving it.

Leaving meat

Wasting edible meat is illegal.

Where you may not shoot

Occupied structures — No shooting from or across a public highway, and no shooting toward an occupied dwelling.

Rocky Mountain 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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Rocky Mountain Bighorn Sheep Success Rates

Idaho Fish and Game's per-unit harvest statistics describe general seasons on game management units, and hunt area 20A is a controlled-hunt area, not a unit, so there is no figure here we can tie to it. A unit's general-season number would describe different hunters on different ground. Idaho Fish and Game's hunt planner reports controlled-hunt results hunt by hunt, which is the figure to check before you apply.

Rocky Mountain Bighorn Sheep Draw Odds

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

Search Idaho Draw Odds

Idaho Fish and Game's 2026 first drawing for Rocky Mountain bighorn sheep in hunt area 20A, with residents and nonresidents kept apart because they draw from different tag pools:

Hunt 5005 — residents 69 applicants for 4 tags, 6% drawn; nonresidents 40 applicants for 0 tags, 0% drawn
Hunt 5022 — residents 27 applicants for 2 tags, 7% drawn; nonresidents 19 applicants for 0 tags, 0% drawn

Idaho draws at random with no point system, so these are what that year happened to look like, not a requirement to build toward. Idaho Fish and Game reuses hunt numbers for different areas between years, so the figures are matched on the area each hunt had in 2026. Checked against Idaho Fish and Game's hunt planner draw results on 2026-06-09.

Unit Logistics & Expectations

Planning Notes

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Water

No named spring or water source falls inside the hunt area in our water layer, so plan on carrying water or finding it on a scouting trip.

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Terrain Difficulty

Named features inside the hunt area run from 7,390 to 9,340 ft. Named heights only — the ground between and below them can run lower.

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Permit Notes

Idaho Fish and Game controlled hunt 5005 (2025 and 2026 rules). Moose, bighorn sheep and mountain goat applications run April 1 to 30. Idaho's draw is random, with no preference or bonus points.

Frequently Asked Questions

Where is Idaho hunt area 20A?

Hunt Area 20A is drawn from unit 20A, in Idaho and Valley counties. Idaho Fish and Game describes Rocky Mountain bighorn sheep hunt area 20A as those portions of Unit 20A up-stream from and including the Butts Creek drainage to the Middle Fork of the Salmon River, and within the Middle Fork of the Salmon River.

What is the Rocky Mountain bighorn sheep success rate in hunt area 20A?

Idaho Fish and Game's per-unit harvest statistics cover general seasons on game management units, and hunt area 20A is a controlled-hunt area, so there is no figure we can tie to it. Idaho Fish and Game's hunt planner reports controlled-hunt results hunt by hunt, and that is the number to check 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.

Moose, Bighorn Sheep & Mountain Goat 2025 & 2026 Seasons & Rules — Idaho Department of Fish and Game · supports: Controlled hunt area description for Rocky Mountain bighorn sheep hunt area 20A, The game management units the area is drawn from, Controlled hunt numbers, tags and season dates · accessed 2026-10-24
IDFG Hunt Planner — controlled hunt drawing odds — Idaho Department of Fish and Game · supports: Applicants, tags and percent drawn by hunt, year and residency · accessed 2026-06-09
IDFG GameManagementUnits and ControlledHunts_All feature services — game management units and every species' controlled-hunt areas — Idaho Department of Fish and Game · supports: Mapped extent of the unit or hunt area, Which named ground falls inside its line · accessed 2026-10-24