The St. Clair River is an integral part of the Great Lakes, draining water from Lake Huron down, eventually, to Lake Erie.
The St. Clair Flats supports a range of wildlife, such as the great blue heron, snapping turtles, watersnakes, muskrats, mink, whitetail deer, pintail, canvasback and mallard ducks, Canada geese and red-winged blackbirds.