Northwestern Dane County is part of the Lower Wisconsin watershed. Black Earth Creek, a popular trout stream, is in this basin. The Lower Wisconsin State Riverway, which begins south of Prairie du Sac, is a protected natural and scenic landscape that provides many recreational opportunities.

• Click on watersheds and waterbodies to display links in the Info panel
• Scroll through multiple Info windows using the arrows
• Zoom, reset to home, or change the basemap using the buttons on the map