Lansing, MI – A Marquette County lake is Michigan's most polluted lake, according to a new study by the State Environmental Leadership Program. Deer Lake near Marquette has game fish with the highest levels of mercury pollution in the state. The top six, and seven out of the ten most polluted lakes are in the Upper Peninsula. They include Chaney Lake in Gogebic County, Craig Lake in Baraga County, the Escanaba River, and Lake Michigamme. The Carp and Menominee Rivers also pose a higher-than-safe level of toxins in fish. David Gard of the Michigan Environmental Council says the answer is not to fish less, but for the EPA to do more to curb mercury pollution.