Unit 31 31 (Brownlee)
Snake River breaks and the Hitt Mountains — one of Idaho's better general units for quality bulls.
West-Central Idaho — Washington County (Snake River / Brownlee Reservoir) · Last reviewed 2026-07-12
Area
595
sq mi
Public land
50%
approx.
Elevation
1,800–6,800
feet
Motorized
moderate
access
Overview
Unit 31 hugs the Idaho side of the Snake River between Weiser and Brownlee Dam, taking in the western shore of 57-mile Brownlee Reservoir plus the Hitt Mountains and their steep breaks. It is roughly half public land — a patchwork of BLM and Payette National Forest broken up by private ranch ground. Anchor of the Brownlee Elk Zone, it produces a lot of elk and mule deer plus a few whitetail in the river bottoms, and has a reputation for high-quality bulls.
Terrain
Steep canyon breaks rising off Brownlee Reservoir and the Snake River into the timbered Hitt Mountains, cut by sharp draws and grassy benches.
Cover: Bunchgrass and sagebrush on the sun-baked lower breaks, with bitterbrush and scattered brush pockets; Douglas-fir and pine on the higher Hitt Mountain slopes; cottonwood and brush in the river bottoms.
Landmarks: Snake River · Brownlee Reservoir · Brownlee Dam · Hitt Mountains · Idaho–Oregon border (Snake River)
Access
State Highway 71 runs from Weiser up to Brownlee Dam along the reservoir; US-95 forms the eastern edge. Public land is mixed checkerboard with private ranches, so knowing boundaries matters. The breaks are steep and largely roadless once you leave the highway; foot access off spur roads is the norm. The Snake River is the Oregon line.
Managers: BLM, Payette NF (USFS), Idaho Dept of Lands (IDL)
Access points: State Highway 71 (Weiser to Brownlee Dam) · US-95 corridor · BLM spur roads into the breaks · Brownlee Reservoir shoreline / boat access
Species notes
Rocky Mountain Elk
common qualityAnchor of the Brownlee Elk Zone and one of the better units in the state for quality bulls; elk numbers have run above objective, prompting added opportunity. Steep breaks hold elk that pressure pushes into the timber.
- →Glass the grassy break benches and canyon heads at dawn, then still-hunt the timber pockets on the Hitt Mountains
- →Hunt north-facing timber and shaded draws where bulls hold during the day
- →Get above elk and work down the steep breaks; plan a brutal pack-out from the canyon bottoms
Mule Deer
common opportunityMule deer are abundant across the sage-and-grass breaks; general opportunity with steady harvest and a chance at mature bucks in the rougher country.
- →Glass the open breaks and draw heads morning and evening
- →Push into the steep, brushy side canyons for older bucks holding away from roads
- →Late season, watch lower winter-range benches near the reservoir
Whitetail Deer
limited opportunityA small number of whitetail inhabit the river bottoms and brushy draws along the Snake and Weiser drainages — a minor but real component of the deer harvest.
- →Hunt cottonwood bottoms and brushy creek corridors at first and last light
- →Watch agricultural edges and thick riparian cover near the river
Pronghorn
limited opportunityPronghorn occur on the open benches and rangeland; a small controlled-hunt opportunity with strong success for the few who draw.
- →Glass open sage and grass benches away from the breaks
- →Use terrain to stalk within range on flat, exposed ground
Black Bear
common opportunityBlack bears are common in the timbered Hitt Mountains and brushy draws; good spring green-up and berry-season opportunity.
- →Glass green south slopes and brush fields in spring
- →Focus berry patches and creek bottoms in the higher timber in fall
Pro tips
- →This is a general-season elk unit with a quality-bull reputation — hunt it hard and vertical; the good bulls hold in the steep timber, not near the road.
- →Public/private is a checkerboard along the highway — carry an ownership map and confirm boundaries before dropping into a canyon.
- →Boat access on Brownlee Reservoir reaches breaks that are miserable to hike into from the highway.
- →Elk numbers have been above objective, so expect added tags/opportunity — check the current Brownlee Zone structure.
- →Plan pack-outs from canyon bottoms in advance; recovery from the bottom of the Snake breaks is punishing.
Watch out for
- !Extensive private ranch land is interspersed with public — trespass is easy to commit here without a map.
- !The Snake River is the Oregon state line; an Idaho tag does not cover the Oregon bank.
- !Steep, unstable break terrain plus greasy clay roads after rain — a rollover/stuck-truck risk.
- !Hot early-season temperatures make meat care urgent in the low canyon country.
Logistics
Weiser has full services, fuel, lodging, and licenses at the south end; Cambridge and Council provide basics to the north/east. Highway 71 gives good vehicle access along the reservoir, but the hunting is steep and vertical off the road. A jet boat or shoreline access on Brownlee opens otherwise hard-to-reach breaks.
Nearest towns: Weiser, Cambridge, Council, Ontario, OR
Seasons & regulations
This page carries no season dates or regulations. Get current rules from the official Idaho sources:
Research sources: IDFG Hunt Planner — Unit 31 summary · IDFG 2025 Deer/Elk Hunting Outlook (Brownlee/Weiser River zone changes) · Payette National Forest (USFS)
FAQ
- How big is Unit 31 in Idaho?
- Unit 31 (31 (Brownlee)) covers about 595 square miles, ranging from roughly 1,800 to 6,800 feet in elevation. Area is computed from the unit boundary polygon.
- How much public land is in Unit 31?
- Approximately 50% of the unit is public land. Primary managers: BLM, Payette NF (USFS), Idaho Dept of Lands (IDL). Always verify ownership boundaries on the ground.
- What species does the catalog list for Unit 31?
- Rocky Mountain Elk, Mule Deer, Whitetail Deer, Pronghorn, Black Bear. For seasons, tags, and regulations, use the official Idaho agency resources linked on this page — this page carries no regulatory information.
Put Unit 31 on your map.
Boundary lines, public/private ownership, topo, and offline maps for this unit — in Baseline Maps, free for 14 days.