Idaho Rocky Mountain Bighorn Sheep

Unit 26L (Wood River / Sun Valley — Archery)

Idaho Hunting Guide — Rocky Mountain Bighorn Sheep

Unit 26L is the archery-only limited bighorn tag for the Wood River and Sun Valley mountain landscape — the same Boulder and Pioneer mountain terrain as the rifle Unit 26, but requiring archery hunters to get within 60 yards of Idaho's most cautious trophy game animal. The archery season typically runs in late summer before the rifle seasons, providing a unique backcountry bowhunting experience in the high country above one of the West's most famous resort communities.

View Draw Odds Idaho Hunting Guide

Rocky Mountain Bighorn Sheep Hunting in Unit 26L

Where to Find Rocky Mountain Bighorn Sheep in Unit 26L

During the archery season, sheep in Unit 26L are at or above treeline on the high ridgelines of the Boulder and Pioneer mountains. The open alpine terrain above 9,000 feet provides the best glassing opportunities during late summer conditions.

High Boulder Mountain Ridges

The upper Boulder Mountain drainages above the North Fork Big Wood River hold sheep in late summer. Glass from saddles on the main ridge looking down into the rocky cirques and basins on both sides of the crest.

How to Hunt Rocky Mountain Bighorn Sheep in Unit 26L (Archery)

Archery bighorn in Unit 26L combines the challenge of close-range sheep hunting with an alpine environment that demands fitness and patience in equal measure.

Wind and Thermal Management at Elevation

In the Boulder and Pioneer mountains, afternoon convective thermals can be unpredictable. Limit archery stalks to early morning when thermals are predictably rising from valley to ridge. Once mid-morning thermals start swirling, back out and wait for evening's downslope flow before attempting another approach.

Patience Over Speed

Archery bighorn hunting rewards hunters who observe and plan. Glass an identified ram for 1–2 full days before attempting any stalk — learn his midday bedding area, travel routes, and reaction to disturbance. A planned stalk on a predictable ram outperforms an opportunistic rush every time.

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Rocky Mountain Bighorn Sheep Success Rates

Success rate data not yet available for this species in this unit.

Archery success in Unit 26L runs 40–55% for tag holders — the open alpine terrain of the Boulder and Pioneer mountains makes close-range approach difficult but not impossible for skilled bowhunters.

Rocky Mountain Bighorn Sheep Draw Odds

Season	Tags	Applicants	Draw %	Pts Req
Rifle— Controlled	3	35	8.6%	0

Data from 2025 draw results. Resident odds shown.

Open in Draw Odds Engine

Unit 26L issues only 1–2 archery bighorn tags per year. Draw odds are under 0.5% for residents. This is one of Idaho's rarest hunting permits — most applicants will never draw it.

Frequently Asked Questions

Can I use the same application for both Unit 26 and Unit 26L?

No — Unit 26 (rifle) and Unit 26L (archery) are separate controlled hunt numbers in the IDFG draw system. You must apply specifically for the hunt number corresponding to your preferred weapon type. Check the IDFG Hunt Planner for current hunt numbers.

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Sources & Verification

Every fact on this page is tied to a primary source below. Last fact-checked 2026-04-18.

IDFG Big Game Rules — Idaho Department of Fish and Game · supports: Unit boundaries, Season structure, Tag quotas · accessed 2026-04-18
IDFG Big Game Hunting — Idaho Department of Fish and Game · supports: Species info, Draw system, License requirements · accessed 2026-04-18