Unit 319

3

Rolling foothills and mountain valleys between Butte and Bozeman with moderate timber and limited water.

Hunter's Brief

Unit 319 encompasses the country between Interstate 90 and Interstate 15 west of Butte, a rolling landscape of foothill ridges, open valleys, and scattered timber. The terrain ranges from lower elevation sagebrush flats to timbered ridges above 9,600 feet, with good road access throughout the unit. Water can be sparse in places, requiring knowledge of reliable springs and creeks. The complexity comes from navigating terrain that's broken enough to hold bears but open enough that finding them demands strategic glassing and creek-bottom work.

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Terrain Complexity
8
8/10
?
Unit Area
2,086 mi²
Vast
?
Public Land
30%
Some
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Access
1.3 mi/mi²
Fair
?
Topography
30% mountains
Rolling
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Forest
33% cover
Moderate
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Water
0.5% area
Moderate

Terrain Deep Dive

Landmarks & Navigation

The Bridger Range dominates navigation from the east—use Bozeman Pass and the divide itself as major orientation features for route planning. Elk Ridge, Blacktail Divide, and Elkhorn Ridge provide natural travel corridors and glassing vantage points. Battle Ridge and the Bridger Divide mark significant terrain transitions.

Springs matter here—Franklin Spring, Moonshine Spring, and Miller Spring are named features worth locating on maps before the hunt. Townsend Reservoir and Hauser Lake mark water sources. The Jefferson River and Spring Creek are major drainages defining valley systems and providing reliable flow.

Pomp Peak and Candle Mountain serve as distant reference points for orientation.

Elevation & Habitat

The unit spans from 3,563 feet in the lower valleys to above 9,600 feet on high ridges, with most terrain falling in the middle elevations. Lower valleys and benchland support sagebrush and grassland with scattered ponderosa and Douglas-fir. Moving upslope, timber becomes more consistent—lodgepole and spruce-fir on north-facing slopes, open ridge-top parks on exposed terrain.

The Bridger Range foothills feature rolling timbered slopes broken by open meadows and parks. Moderate forest cover means travel corridors exist through the timber, but thick pockets require careful route-finding. The median elevation of 5,410 feet reflects terrain that's substantially mid-elevation mountain country.

Elevation Range (ft)?
3,5639,603
02,0004,0006,0008,00010,000
Median: 5,410 ft
Elevation Bands
8,000–9,500 ft
1%
6,500–8,000 ft
12%
5,000–6,500 ft
52%
Below 5,000 ft
34%

Access & Pressure

Nearly 2,800 miles of road exist within or immediately accessible to the unit, making it heavily connected to the I-90/I-15 corridor. This accessibility creates hunting pressure, especially near Butte, Townsend, and along lower-elevation access roads. However, the rolling terrain and moderate forest cover provide refuge for bears willing to move into broken country away from obvious travel routes.

Many hunters key on easier ridge lines and valley bottoms—the complexity lies in recognizing that bears have room to move upslope and into dense timber during daylight. Weekend pressure from Butte and Bozeman can be significant.

Boundaries & Context

Unit 319 sits in the I-90/I-15 corridor west of Butte, bounded by the interstate junction on the east and extending west through Silver Bow and Deer Lodge Counties toward the Bridger Range. The unit is essentially a massive rectangle carved from highway boundaries—highly accessible but still substantial in scale. Townsend Valley and surrounding drainages form the geographic core.

The landscape transitions from lower foothills near the interstates to higher mountain country to the west, with the Big Belt Mountains, Bridger Range, and Horseshoe Hills providing the primary ridge systems. This is working ranch and mining country mixed with public land.

Land Cover Breakdown?
Mountains (forested)
19%
Mountains (open)
12%
Plains (forested)
14%
Plains (open)
55%
Water
1%

Water & Drainages

Water is limited and seasonal awareness matters. The Jefferson River flows through the unit and provides reliable flow, while Spring Creek and Spokane Creek are dependable secondary drainages. Named springs—Franklin, Moonshine, Miller, Kennedy—indicate where water concentrates.

Many smaller creeks and runs (Boone Run, Sixteenmile Creek, Grouse Creek) flow seasonally or become unreliable by late season. Townsend Reservoir and Hauser Lake offer static water but may not be accessible depending on location. Hunters should map reliable springs before entry and plan water strategy by elevation—high country dries first in summer.

Hunting Strategy

Black bears in Unit 319 use the full elevation gradient seasonally. Early season hunting targets lower elevations—sagebrush parks, meadows, and berry patches in the 5,000-6,500-foot band. By mid-summer, bears migrate upslope into cooler timber and high parks.

The rolling ridge systems and meadow-to-timber transitions are natural funnels—use ridges for glassing morning and evening movements, then work timber and creek bottoms during heat. Spring Creek and the Jefferson River drainages concentrate bears during runoff. The complexity score reflects terrain rugged enough to hold bears but not wilderness—success requires discipline in covering ground systematically rather than relying on luck.