THE BIG HORN COUNTY LAND BRIEF
Land in the
Montana Central Grasslands setting.
Big Horn County has 4,997.8 square miles of land in Montana. 6 mapped landscape regions meet across Big Horn County: Montana Central Grasslands, Pryor-Bighorn Foothills, Pine Scoria Hills, among others.
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.
Regional context: Northwestern Great Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Big Horn County intersects 6 mapped regional units. The largest mapped shares are:
- Montana Central Grasslands45.4%
- Pryor-Bighorn Foothills19.1%
- Pine Scoria Hills17.9%
- Mesic Dissected Plains11%
- Dry Mid-elevation Sedimentary Mountains6.4%
Middle Rockies in Big Horn County
Forested mountain ranges rise above grassy or shrubby intermountain valleys. The Middle Rockies combine alpine high country, partly wooded foothills and valleys supplied by mountain streams.
Read the regional source ↗Wyoming Basin in Big Horn County
A broad dry basin is interrupted by hills and low mountains. Grassland and shrubland dominate the regional setting between the more heavily forested surrounding ranges.
Read the regional source ↗Finding your parcel within Big Horn County
The atlas lists 10 cities, towns, townships, and Census communities associated with Big Horn County, including Pryor, Muddy, Busby. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Big Horn County by land and water
The Census records 18.3 square miles of water within Big Horn County, or 0.4% of its total area. That share is close to Big Horn County’s 0.4%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Big Horn County has 19,371.2 times the land area of nearby Lodge Grass town (0.26 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Carbon County, Powder River County, Rosebud County, Treasure County, Yellowstone County within Montana. A tract near one of these lines should be matched to the county identifier on its own records.

