Dr. Shawn Schottler, senior scientist with the University of Minnesota St. Croix Research Station, spoke in Willmar on Wednesday about research that used the "fingerprint" of lead and cesium isotopes to identify the sources of sediment reaching Lake Pepin. Tribune photo by Tom Cherveny
Minnesota River's sediment load growing
WILLMAR -- Like a stuck accelerator pedal, we've speeded up the delivery of sediment to Lake Pepin so that it will fill up in a mere 300 or so years, instead of the 3,600 years that natural processes would have required.
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