Due to the COVID-19 virus outbreak and guidelines from Wisconsin Department of Health Services, UW–Madison, and federal agencies the Estuarium is closed and our facilities will have limited availability and access. Our staff are working remotely and many of our events have been postponed. Visit Facebook for updates. For the latest information on COVID-19, visit the Wisconsin Department of Health Services.

Located on the St. Louis River Estuary in Superior, Wisconsin

The Lake Superior National Estuarine Research Reserve works in partnership to improve the understanding of Lake Superior’s coast and estuaries. We address issues affecting the watershed through integration of research, education, outreach and stewardship.

Lake Superior High Water Spotter

Help document shoreline impacts from water levels

This year the water levels across the Great Lakes are predicted to once again be very high. We’re gathering photos from around Lake Superior that capture what these conditions look like to establish a visual record.

Share your photos

Lake Superior Day, Lake Superior Community Celebration

Less Screens, More Streams

St. Louis River Field School

Virtual and homeschool learners in grades 6-8 are invited to take learning outside with science and education staff from the Reserve. Taking place at different locations along the St. Louis River, including Wisconsin Point and the Superior Municipal Forest, each of these monthly, hands-on experiences will provide a place for students to unplug outdoors and gain an appreciation of the St. Louis River.