Finding clues to water quality in the bottom of a lake

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Scientists used canoes braced together.
St. Croix Watershed Research Station scientists used canoes braced together to gather sediment from five locations in Solem Lake near Kensington in west-central Minnesota in late May.
Dan Olson | MPR News

Scientist Dan Engstrom, director of the St. Croix Watershed Research Station, studies the sediment on lake bottoms, which can show how — or even if — certain farming practices affect water quality.

"We're investing a lot in encouraging farmers to do these things, but are we getting much bang for our buck?"

Join Engstrom on the road to one of Minnesota's 11,842 lakes.