Unit 322 District 322 (Region 3)
Ruby River bottoms and ag valley where whitetails thrive and elk winter on private ground
Lower Ruby Valley — Region 3 (Southwest Montana) · Last reviewed 2026-07-12
Area
456
sq mi
Public land
25%
approx.
Elevation
4,600–7,500
feet
Motorized
moderate
access
Overview
A compact district wrapped around the lower Ruby River valley between Twin Bridges, Alder and the Sweetwater country, in Beaverhead and Madison counties. This is a broad agricultural valley of irrigated hay meadows and cottonwood river bottoms rimmed by dry foothills, making it classic southwest-Montana whitetail ground with mule deer on the benches and elk that concentrate heavily on private ranch land. Access is the central challenge: the productive valley floor is almost entirely private, so Block Management and the scattered public foothills are the keys to hunting it.
Terrain
Broad Ruby River valley floor near 4,600-5,000 ft rising into dry, grass-and-sage foothills and low timbered breaks on the flanks of the Ruby and Tobacco Root fringe.
Cover: Cottonwood and willow river bottoms, irrigated hay and pasture on the valley floor, sagebrush-grassland and bitterbrush on the benches, scattered juniper and Douglas-fir in the higher draws and foothills.
Landmarks: Ruby River · Ruby Reservoir · Twin Bridges · Alder · Sweetwater Road / Sweetwater Basin · Beaverhead River confluence
Access
The valley floor and best deer and elk ground is dominated by private ranch and irrigated ag; harvest opportunity here is almost exclusively on private land. FWP Block Management Areas open the most walk-in acreage to free public hunting — line these up before the season. Scattered BLM parcels and DNRC state trust sit in the foothills, and the surrounding Beaverhead-Deerlodge NF is reachable on the valley edges.
Managers: private ranch + Block Management, BLM, MT DNRC state trust, USFS Beaverhead-Deerlodge National Forest
Access points: Montana Highway 287 (Twin Bridges-Alder-Sheridan) · State Route 41 corridor · Ruby River Road up the valley · Sweetwater Road east of Route 41 · Ruby Reservoir access
Species notes
Whitetail Deer
abundant qualityWhitetails are the signature animal, thick in the Ruby River cottonwoods, brushy sloughs and ag edges and continuing to expand across the valley.
- →Hunt cottonwood bottoms and hay/timber edges at first and last light
- →The November rut pulls mature bucks into the open along field margins
- →Secure private or Block Management access early — the best bucks live on the ag floor
Mule Deer
common opportunityMule deer hold on the dry sage benches and foothill breaks above the valley, fewer than whitetails but reliable on public and BMA ground.
- →Glass open sage-and-grass slopes and coulees at dawn
- →Climb into the foothill breaks away from the whitetail bottoms
- →Watch saddles and rims during the late-November rut
Rocky Mountain Elk
common qualityElk numbers in the greater Ruby-Snowcrest complex are among the state's highest, but in the lower Ruby they distribute heavily onto private ranch land during the season.
- →Focus on Block Management ranches that hold wintering elk
- →Hunt the foothill transition timber early before elk pile onto private
- →Glass private-public boundaries at first light and be ready to catch elk crossing to security
Pronghorn
limited opportunityA few pronghorn use the open sage flats and benches of the Sweetwater and lower valley; numbers are modest and were hit by recent drought and hard winters.
- →Glass wide-open sage basins mid-morning
- →Focus on BLM and BMA sage ground in the Sweetwater country
- →Expect low densities and long spot-and-stalk approaches
Cougar
common opportunityStrong deer numbers support mountain lions through the river breaks and foothill timber; a winter tracking-snow pursuit.
- →Cut fresh tracks on foothill roads after new snow
- →Focus on deer-wintering breaks along the Ruby
- →Most success comes with hounds and a tracking snow
Pro tips
- →This is a private-land district first — lock down Block Management or ranch permission before opening weekend.
- →Plan whitetails around the November rut in the Ruby bottoms and ag edges.
- →For elk, hunt the public-private seam and BMAs that hold wintering herds.
- →Glass the sage benches at dawn for mule deer before they bed.
- →A tracking snow late opens both mule deer on the breaks and lion hunting.
Watch out for
- !Valley floor is overwhelmingly private ranch — get written permission or use verified Block Management; do not assume access.
- !Elk concentrate on private land not enrolled in Block Management, which frustrates public hunters late in the season.
- !County and river-bottom roads turn to greasy gumbo when wet.
- !Grizzlies are slowly dispersing west and north from the Greater Yellowstone into the upper Ruby drainages — unlikely on the valley floor but stay bear-aware in the foothills.
Logistics
Base out of Twin Bridges or Sheridan for fuel and basics, or Dillon (roughly 25-30 miles southwest) for full services. Butte is the nearest large hub. Valley county roads are good but can turn to slick gumbo when wet.
Nearest towns: Twin Bridges, Sheridan, Alder, Dillon, Virginia City
Seasons & regulations
This page carries no season dates or regulations. Get current rules from the official Montana sources:
Research sources: MTFWP Deer/Elk Hunting District 322 (Lower Ruby) legal description & map · FWP Region 3 Hunting Forecasts (Sheridan/Dillon area) — The Anaconda Leader · HuntScore — Montana HD 322 Lower Ruby
FAQ
- How big is Unit 322 in Montana?
- Unit 322 (District 322 (Region 3)) covers about 456 square miles, ranging from roughly 4,600 to 7,500 feet in elevation. Area is computed from the unit boundary polygon.
- How much public land is in Unit 322?
- Approximately 25% of the unit is public land. Primary managers: private ranch + Block Management, BLM, MT DNRC state trust, USFS Beaverhead-Deerlodge National Forest. Always verify ownership boundaries on the ground.
- What species does the catalog list for Unit 322?
- Whitetail Deer, Mule Deer, Rocky Mountain Elk, Pronghorn, Cougar. For seasons, tags, and regulations, use the official Montana agency resources linked on this page — this page carries no regulatory information.
Put Unit 322 on your map.
Boundary lines, public/private ownership, topo, and offline maps for this unit — in Baseline Maps, free for 14 days.