Collecting water samples at Allouez Bay in the St. Louis River Estuary at Lake Superior
By Upper Midwest Water Science Center
June 2026 (approx.)
Detailed Description
A graduate student Olive Stern of Rensselaer Polytechnic Institute (right) and USGS Biologist (left) Pat Perner of USGS collect water samples at Allouez Bay in the St. Louis River Estuary at Lake Superior.
Sources/Usage
Public Domain.