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Monitoring Minnesota's lakes

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Research team
The side mirror of a research team's truck reflects Lake Carlos and the surrounding fall foliage on Monday, Oct. 5, 2010. Lake Carlos, located five miles north of Alexandria, Minn., is being studied as part of the Sentinel Lakes Project.
MPR Photo/Ann Arbor Miller

State and federal researchers are taking a very detailed look at some Minnesota lakes to monitor the effects of climate change and pollution. The so-called super sentinel lakes that will act as an early detection system for poor conditions include Lake Carlos, near Alexandria, Elk Lake in Itasca State Park and Trout Lake in Cook County.