St. Louis River AOC


Real-Time Water Quality Sensors for Western Lake Superior
and the St. Louis River Estuary

This interactive map allows users to identify sources of real-time water quality and flow data in the region. Clicking each station dot provides a direct link to access data and graphing tools used by the host organization as well as a link to a unique interactive visualization and animation tool to explore the data further.


St. Louis Bay Fisheries Data Plotter


SLR Fisheries Data Plotter



St. Louis River Water Quality Data Viewer

Shows recovery from sewage and paper mill effluent, data from 1922-1996

St. Louis River Water Quality Data Viewer



St. Louis River Data Sites