THE CROOK COUNTY LAND BRIEF
Land in the
John Day/Clarno Uplands setting.
Crook County has 2,978.9 square miles of land in Oregon. 8 mapped landscape regions meet across Crook County: John Day/Clarno Uplands, John Day/Clarno Highlands, Deschutes River Valley, among others.
The Blue Mountains combine open mountain ranges and dissected volcanic uplands. The Wallowa and Elkhorn high country includes older granitic and metamorphic rocks above the surrounding lava landscape.
Regional context: Blue Mountains ↗ · Regional mapping across the county footprint
Where the landscape changes
Crook County intersects 8 mapped regional units. The largest mapped shares are:
- John Day/Clarno Uplands51.8%
- John Day/Clarno Highlands25.1%
- Deschutes River Valley14.6%
- Pluvial Lake Basins3.9%
- High Lava Plains2.2%
Northern Basin and Range in Crook County
Lava plains, stony uplands, dry valleys and scattered ranges form the Northern Basin and Range. Sagebrush and grassland give way to juniper and other woodland in higher or rockier settings.
Read the regional source ↗Finding your parcel within Crook County
The atlas lists 4 cities, towns, townships, and Census communities associated with Crook County, including Juniper Canyon, Prineville, Prineville Lake Acres. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Crook County by land and water
The Census records 8.11 square miles of water within Crook County, or 0.3% of its total area. That share is close to Crook County’s 0.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Crook County has 31.7 times the land area of nearby Juniper Canyon CDP (94.1 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Deschutes County, Grant County, Harney County, Jefferson County, Wheeler County within Oregon. A tract near one of these lines should be matched to the county identifier on its own records.

