Big Sioux River, Lake Kampeska latest South Dakota waters where zebra mussels discovered

More than a dozen lakes infested with invasive species

The Game, Fish, and Parks (GFP) Department has discovered more zebra mussels in South Dakota waters.

The agency confirmed Thursday the invasive species was discovered in both Lake Kampeska in Watertown and the Big Sioux River, which runs from Roberts County in northeast South Dakota to the Sioux Falls area and further south into Iowa where it connects wi…