Rock Creek (Kankakee River tributary)

Rock Creek is a 24.7-mile-long (39.8 km) tributary of the Kankakee River in the U.S. state of Illinois. It empties into the Kankakee River in Kankakee River State Park, northwest of Kankakee, Illinois.

Source: Wikipedia — Rock Creek (Kankakee River tributary) (CC BY-SA 4.0)