By Glen Sorenson
Look at that
Part II: The Nemadji River tells its story
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This image, taken on June 19, 2018, by an astronaut onboard the International Space Station, shows sediment runoff into Lake Superior near Duluth. The Nemadji River regularly unloads red clay sediment into the Lake Superior Harbor, but the discharge was intensified during the flooding event and discolored waters. Astronaut photograph ISS056-E-21591 is provided by the ISS Crew Earth Observations Facility and the Earth Science and Remote Sensing Unit, Johnson Space Center.
Hello again from the red clay waters of the Nemadji River.
Last week we journeyed back in time and were lucky to see Glacial Lake Duluth and witness a lake 450 feet higher than current Lake Superior. It was so high it backed up and covered Jay Cooke Park and a good deal of Carlton County; it existed there for about 1,000 years, according to glacial geologists (glaciologists).
The presence of this ancient lake is an important part of the Nemadji River story. We know the Nemadji River basin has an abundance of red clay soils, hence red clay in the water. I think we should travel back in tim...
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