United States, Illinois, Kendall, South side of Fox River, at west tip of island in middle of river, north of Sundown Lane, west end of town / county forest reserve [Oswego Park District land] east of residential area, Oswego, east of Yorkville. Elevation 179 meters. Coordinate Datum: WGS84/NAD83
41.670194 -88.400472
River and mud flats. Locally common on exposed mud and gravel flats at west tip of island in middle of river.