Souris so͝orˈĭs [key], river, c.450 mi (720 km) long, rising in S Sask., Canada, and flowing southeast with a great loop into N.Dak. (passing Minot), then N and NE to the Assiniboine River in SW Man.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2024, Columbia University Press. All rights reserved.

See more Encyclopedia articles on: Canadian Physical Geography