Lake Superior Basin

Enter the Wisconsin Lake Superior Watershed! Discover its unique environment and natural resources.

Description

About the Basin

Discover the unique environment and natural resources of the Lake Superior watersheds in Wisconsin.

Basin Resources

Clear, cold and deep, Lake Superior - the largest expanse of fresh water in the world - forms Wisconsin's north coast. The Wisconsin Department of Natural Resources in the Lake Superior Basin provides this site about fisheries, forests, wildlife, pollution prevention, watershed protection, tributaries, environmental protection and regulation, invasive aquatic species, recreation, and special programs. Cleanest of the Great Lakes, the Lake Superior ecosystem faces threats from toxic pollution, tributary erosion, contaminated sediments, habitat loss and degradation, and exotic species. The governors of Wisconsin, Michigan and Minnesota signed the Binational Program to Protect and Restore the Lake Superior Basin in 1991.

See the Surface Water Data Viewer to view details about the basin.

View Map

Watersheds, Waters

Click the links below to find water resource information for specific watersheds and their waters.

Watershed Name/View DetailsWatershed Code/MapWatershed SizeLists (Streams, Lakes, Bays & Harbors)CountiesWater Management Unit (WMU)Major Drainage System
Amnicon and Middle Rivers LS03 288.92 mi 2 LS03 Water Lists DouglasLake SuperiorLake Superior
Bayfield Peninsula Northwest LS06 236.05 mi 2 LS06 Water Lists BayfieldLake SuperiorLake Superior
Bayfield Peninsula Southeast LS07 301.48 mi 2 LS07 Water Lists Ashland, BayfieldLake SuperiorLake Superior
Black and Upper Nemadji River LS02 125.62 mi 2 LS02 Water Lists DouglasLake SuperiorLake Superior
Bois Brule River LS04 199.64 mi 2 LS04 Water Lists Douglas, BayfieldLake SuperiorLake Superior
Fish Creek LS08 156.55 mi 2 LS08 Water Lists Ashland, BayfieldLake SuperiorLake Superior
Iron River LS05 213.39 mi 2 LS05 Water Lists Douglas, BayfieldLake SuperiorLake Superior
Lower Bad River LS09 123.92 mi 2 LS09 Water Lists Ashland, Iron, BayfieldLake SuperiorLake Superior
Marengo River LS12 217.53 mi 2 LS12 Water Lists Ashland, BayfieldLake SuperiorLake Superior
Montreal River LS15 226.26 mi 2 LS15 Water Lists Ashland, Iron, VilasLake SuperiorLake Superior
Potato River LS11 139.92 mi 2 LS11 Water Lists Ashland, IronLake SuperiorLake Superior
Presque Isle River LS16 108.05 mi 2 LS16 Water Lists VilasLake SuperiorLake Superior
St. Louis and Lower Nemadji River LS01 159.67 mi 2 LS01 Water Lists DouglasLake SuperiorLake Superior
Tyler Forks LS13 78.76 mi 2 LS13 Water Lists Ashland, IronLake SuperiorLake Superior
Upper Bad River LS14 134.68 mi 2 LS14 Water Lists Ashland, IronLake SuperiorLake Superior
White River LS10 366.15 mi 2 LS10 Water Lists Ashland, BayfieldLake SuperiorLake Superior

Plans

Watershed Plans

One watershed for the Superior Basin has been updated and is a formal amendment to the 1999 Superior Basin Plan. Contact Nancy Larson, Watershed Supervisor for information.

Basin Plan 1999

Last Revised: