The Mouse River, known as the Souris River in Canada, originates in southeastern Saskatchewan near the city of Weyburn. The river then flows approximately 357 miles through North Dakota. It enters the state near Sherwood, passes through the city of Minot, and reaches its southernmost point near Velva, North Dakota. From Velva, the river turns north and flows into the Canadian province of Manitoba.
The basin includes a variety of landscapes. These include hilly terrain in the southwest, flat glacial lake plains in the east, and the forested hills of the Turtle Mountains in the northeast.
The Mouse River Basin drains nearly 23,600 square miles and has a long history of flooding. Major flood events occurred in 1969, 1976, and 2011. The 2011 flood was the largest flood event recorded in the basin’s history.
Additional Mouse/Souris River Basin information and supporting data are provided on the following pages:
- Mouse/Souris River Basin Maps
- Mouse/Souris River Basin Programs & Organizations
- Mouse/Souris River Basin Reports and Publications
- Mouse/Souris River Basin Water Data
- Upper Sheyenne River Joint Water Resource Board (USRJWRB)
Information
For more information on the Mouse/Souris River Basin, please contact Laura Ackerman, P.E., Water Resource Engineer at (701) 328-4868 or e-mail.