Unit 401

Sweetgrass Hills

High plains and prairie country between the Canadian border and US Highway 2 near Shelby.

Hunter's Brief

Unit 401 is expansive plains terrain spanning Liberty, Toole, and Glacier Counties from the Canadian border south to Highway 2. The landscape is predominantly open grassland with scattered buttes and coulees providing navigation landmarks and limited ridge-top glassing. Water sources are sparse—rely on mapped reservoirs and springs rather than perennial streams. Private land is prevalent; public access requires careful route planning. The 2,000+ miles of roads provide fair access overall, though many cross private property. This is straightforward country for hunters willing to cover distance and work around ownership boundaries.

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Terrain Complexity
4
4/10
?
Unit Area
1,814 mi²
Vast
?
Public Land
10%
Few
?
Access
1.1 mi/mi²
Fair
?
Topography
2% mountains
Flat
?
Forest
1% cover
Sparse
?
Water
0.2% area
Limited

Terrain Deep Dive

Landmarks & Navigation

Several buttes and ridges serve as navigation anchors and glassing points: Hawley Hill, Grassy Butte, Black Butte, and Haystack Butte are visible references across the plains. The Sweet Grass Hills to the east provide a geographic marker. Coulees including Hall, Snow, and Powers Creek offer navigation corridors and potential water sources.

McCarters Lake and Moltz Lake are noteworthy water features. Bear Tooth and Rooster Ridge provide higher vantage points for surveying surrounding terrain. These scattered landmarks help orient hunters in country that can appear featureless from ground level but becomes more navigable with map study.

Elevation & Habitat

Terrain spans from 3,000 feet to nearly 7,000 feet, but the majority sits in the lower elevation band. The landscape is open grassland and prairie with sparse tree cover—expect sagebrush flats, native grasses, and scattered cottonwood draws along creek bottoms. Occasional forested ridges and buttes rise from the plains, particularly toward the Sweet Grass Hills and scattered peaks like Mount Brown and Black Butte.

This is primarily deer and pronghorn country at these elevations, though elk occasionally move through higher ridge systems. Juniper and Douglas-fir scattered across higher terrain provide minimal shelter compared to mountain units.

Elevation Range (ft)?
3,0316,959
02,0004,0006,0008,000
Median: 3,451 ft
Elevation Bands
5,000–6,500 ft
1%
Below 5,000 ft
99%

Access & Pressure

Over 2,000 miles of road network traverse the unit, but the practical challenge is ownership. Most roads cross private land, limiting where you can legally hunt. Fair overall accessibility means some routes are available, but patience with maps and property boundaries is essential.

Towns including Shelby, Hill, and Chester provide services and staging areas. The combination of vast size and limited public land creates a paradox: low hunting pressure in accessible areas conflicts with restricted access. Pressure tends to concentrate along Highway 2 corridors and mapped public sections.

Early season and off-peak weekdays offer better conditions for finding solitude.

Boundaries & Context

Unit 401 encompasses the broad plains country of north-central Montana, bounded on the north by the Canadian border and on the south by US Highway 2, which runs through Shelby and Chester. The unit spans three counties—Liberty, Toole, and Glacier—and borders the Blackfeet Indian Reservation on the western side. The Sweet Grass Hills form a natural eastern reference point.

This is high plains territory, historically important for access routes and settlement corridors. The unit's vast size contrasts sharply with limited public land, making knowledge of property boundaries essential for legal access and effective hunting.

Land Cover Breakdown?
Mountains (forested)
0%
Mountains (open)
2%
Plains (forested)
0%
Plains (open)
98%
Water
0%

Water & Drainages

Water is the limiting factor in this unit. Perennial streams are scarce; most drainages run intermittently or seasonally. Hall Coulee, Snow Coulee, and Powers Creek are the most reliable named water features.

Mapped reservoirs including Summers, Great Northern, Vaver, Melcott, and McIntyre provide concentrated water sources. Scattered springs—Big Spring, Alkali Spring, Lothair Spring—exist but require advance scouting to confirm reliability. Willshaw Flats and scattered smaller lakes supplement options.

Summer hunting pressure often concentrates around reliable water; spring and fall offer more distributed hunting opportunities. Carry extra water and plan access routes around known sources.

Hunting Strategy

Unit 401 supports elk, mule deer, white-tailed deer, and mountain lion. Mule deer favor the open flats and low buttes where they can glass vast country; early mornings and late evenings on ridges offer best glassing opportunities. Whitetails use coulees and draw bottoms with heavier cover.

Elk move through higher terrain and ridge systems, particularly in early fall during transitions. Lions prey on deer populations and move widely across the plains. Success requires glass-and-stalk tactics across open ground or methodical coulee hunting for whitetails.

Plan for 2-3 day hunts to cover country effectively. Spring and fall provide optimal conditions; summer heat concentrates game near water. Know ownership before committing time to any area.