Collecting water samples at Allouez Bay in the St. Louis River Estuary at Lake Superior
Collecting water samples at Allouez Bay in the St. Louis River Estuary at Lake SuperiorA 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.