THE ROOSEVELT COUNTY LAND BRIEF
Land in the
Glaciated Dark Brown Prairie setting.
Roosevelt County has 2,354.6 square miles of land in Montana. 3 mapped landscape regions meet across Roosevelt County: Glaciated Dark Brown Prairie, Glaciated Northern Grasslands, River Breaks.
Glaciated plains bridge the wetter eastern prairie and the drier, more broken Great Plains. Numerous prairie potholes and other seasonal or persistent wetlands are characteristic regional landforms.
Regional context: Northwestern Glaciated Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Roosevelt County intersects 3 mapped regional units. The largest mapped shares are:
- Glaciated Dark Brown Prairie75%
- Glaciated Northern Grasslands21.3%
- River Breaks3.7%
Northwestern Great Plains in Roosevelt County
Rolling semiarid plains are punctuated by buttes, badlands and river breaks. Much of the regional terrain developed on sandstone, siltstone and shale without the leveling influence of continental glaciers.
Read the regional source ↗Finding your parcel within Roosevelt County
The atlas lists 6 cities, towns, townships, and Census communities associated with Roosevelt County, including Bainville, Culbertson, Brockton. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Roosevelt County by land and water
The Census records 14.9 square miles of water within Roosevelt County, or 0.6% of its total area. That share is close to Roosevelt County’s 0.6%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Roosevelt County has 2,378.4 times the land area of nearby Brockton CDP (0.99 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Daniels County, McCone County, Richland County, Sheridan County, Valley County within Montana. A tract near one of these lines should be matched to the county identifier on its own records.

