THE POWELL COUNTY LAND BRIEF
Land in the
Rattlesnake-Blackfoot-South Swan-Northern Garnet-Sapphire Mountains setting.
Powell County has 2,326 square miles of land in Montana. 11 mapped landscape regions meet across Powell County: Rattlesnake-Blackfoot-South Swan-Northern Garnet-Sapphire Mountains, Deer Lodge-Philipsburg-Avon Grassy Intermontane Hills and Valleys, Foothill Potholes, 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
Powell County intersects 11 mapped regional units. The largest mapped shares are:
- Rattlesnake-Blackfoot-South Swan-Northern Garnet-Sapphire Mountains26.3%
- Deer Lodge-Philipsburg-Avon Grassy Intermontane Hills and Valleys24.9%
- Foothill Potholes8.9%
- Southern Garnet Sedimentary-Volcanic Mountains8.6%
- Western Canadian Rockies8.2%
Canadian Rockies in Powell County
High mountain ranges extend south from Canada into northwestern Montana. Glacial terrain, conifer forests and alpine country are central features, with more ice-covered highlands than the Northern Rockies.
Read the regional source ↗Finding your parcel within Powell County
The atlas lists 8 cities, towns, townships, and Census communities associated with Powell County, including Avon, Garrison, Ovando. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Powell County by land and water
The Census records 6.27 square miles of water within Powell County, or 0.3% of its total area. That share is close to Powell County’s 0.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Powell County has 7,070 times the land area of nearby Helmville CDP (0.33 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Deer Lodge County, Flathead County, Granite County, Jefferson County, Lewis and Clark County, Missoula County within Montana. A tract near one of these lines should be matched to the county identifier on its own records.

