THE MOUNTRAIL COUNTY LAND BRIEF
Land in the
Missouri Coteau Slope setting.
Mountrail County has 1,825.2 square miles of land in North Dakota. 5 mapped landscape regions meet across Mountrail County: Missouri Coteau Slope, Northern Missouri Coteau, River Breaks, among others.
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
Mountrail County intersects 5 mapped regional units. The largest mapped shares are:
- Missouri Coteau Slope60%
- Northern Missouri Coteau20.3%
- River Breaks18.3%
- Northern Dark Brown Prairie1.2%
- Missouri Coteau0.2%
Northwestern Great Plains in Mountrail 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 ↗Northern Glaciated Plains in Mountrail County
Flat to gently rolling glacial terrain supports a prairie transition between taller and shorter grasses. Many temporary and seasonal wetlands occupy depressions left in the glacial landscape.
Read the regional source ↗Finding your parcel within Mountrail County
The atlas lists 56 cities, towns, townships, and Census communities associated with Mountrail County, including Myrtle, Manitou, Plaza. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Mountrail County by land and water
The Census records 116.3 square miles of water within Mountrail County, or 6% of its total area. That share is close to Mountrail County’s 6%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Mountrail County has 51.4 times the land area of nearby Purcell township (35.5 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Burke County, Dunn County, McKenzie County, McLean County, Ward County, Williams County within North Dakota. A tract near one of these lines should be matched to the county identifier on its own records.

