Bois de Sioux River
The Bois de Sioux River drains Lake Traverse, the southernmost body of water in the Hudson Bay watershed of North America. It is a tributary of the Red River of the North and defines part of the western border of the U.S. state of Minnesota, and the eastern borders of North Dakota and South Dakota. It is about 41 miles (66 km) in length.
The river flows northward from a Corps of Engineers dam at the north end of Lake Traverse and shortly enters Mud Lake. Downstream of Mud Lake it is a small stream, and its flow has been channelized and straightened in some places so that the watercourse diverges slightly from the historic state boundary. It passes the town of White Rock before joining the Otter Tail River to form the Red River of the North at Wahpeton, North Dakota, and Breckenridge, Minnesota.
- List of Minnesota rivers
- List of North Dakota rivers
- List of South Dakota rivers
- River borders of U.S. states
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed June 8, 2011
- Waters, Thomas F. (1977). The Streams and Rivers of Minnesota. Minneapolis: University of Minnesota Press. ISBN 0-8166-0960-8.