POLLUTION IN LITTLE LAKE BUTTE DES MORTS

Neenah and Menasha, Winnebago County. May 18, 1970. Altitude c. 7,000 feet. Little Lake Butte des Morts is seen in its entirety, stretching from Neenah in the south (bottom) toward Appleton in the north (top).  Doty Island, formed by the two channels of the Lower Fox River as they enter the lake from Lake Winnebago (out of view to the east), is at right center.  Multi-colored plumes of pollution stream into Little Lake Butte des Morts from "Twin Cities" industries, primarily paper mills.  The Clean Water Act of the mid-1970's has resulted in a significant reduction in mill effluent, but pollutants remain in bottom sediments.