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Gateway to Wisconsin's Basins and Watersheds

Wisconsin's largest river systems form 24 drainage basins. Click on the map or drop-down box below to navigate to your basin of interest.

Basin mapClick to See the Lake Superior basin Click to See the St. Croix basin Click to See the Upper Chippewa basin Click to See the Upper Wisconsin basin Click to see lower Chippewa basin Go to the Black Buffalo Tremplealeau watershed Go to the Bad Axe La Crosse basin Go to the Lower Wisconsin watershed View the Grant Platte, Sugar Pecatonica basins View the Lower Rock basin View the SE Fox Illinois basin Click to see root pike Green Bay basin Wolf River basin Central Wisconsin River basin Upper Rock River basin Upper Fox River basin Lower Fox River basin Lakeshore River basin Sheboygan basin Milwaukee River basin Mississippi River basin