THE BEAVERHEAD COUNTY LAND BRIEF
Land in the
Dry Intermontane Sagebrush Valleys setting.
Beaverhead County has 5,542.7 square miles of land in Montana. 11 mapped landscape regions meet across Beaverhead County: Dry Intermontane Sagebrush Valleys, Dry Gneissic-Schistose-Volcanic Hills, Pioneer-Anaconda Ranges, among others.
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.
Regional context: Middle Rockies ↗ · Regional mapping across the county footprint
Where the landscape changes
Beaverhead County intersects 11 mapped regional units. The largest mapped shares are:
- Dry Intermontane Sagebrush Valleys26%
- Dry Gneissic-Schistose-Volcanic Hills20.1%
- Pioneer-Anaconda Ranges12.9%
- Big Hole9.5%
- Barren Mountains8.8%
Idaho Batholith in Beaverhead County
A deeply cut mountainous plateau forms the Idaho Batholith. Granitic terrain supports conifer forests, while deep canyons introduce warmer settings with pine, shrubs and grasses.
Read the regional source ↗Finding your parcel within Beaverhead County
The atlas lists 12 cities, towns, townships, and Census communities associated with Beaverhead County, including Dillon, Maverick Mountain, Grant. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Beaverhead County by land and water
The Census records 30.2 square miles of water within Beaverhead County, or 0.5% of its total area. That share is close to Beaverhead County’s 0.5%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Beaverhead County has 18,599.6 times the land area of nearby Argenta CDP (0.3 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Deer Lodge County, Madison County, Ravalli County, Silver Bow County within Montana. A tract near one of these lines should be matched to the county identifier on its own records.

