This distinction causes the area considered the Drift Prairie to overlap somewhat with the Missouri Plateau, another of North Dakota's distinct geographic regions, but the Drift Prairie also includes the Souris River basin.
Prairie grasses and wheat grow there, making it a perfect place for ranchers.
The prairie is filled with drift, a type of soil consisting of clay, sand, and gravel originating from glacial processes.
[2] In South Dakota, most of the eastern part of the state is covered by the Drift Prairie.
To the east of the river are low hills and lakes formed by glaciers referred to as the Drift Prairie.