River - Des Plaines
The Des Plaines River, a tributary of the Illinois River, is located in southeastern Wisconsin and northeastern Illinois. It is 134 miles in length and has a drainage area in Illinois of approximately 1,320 square miles. Its major tributaries include the DuPage River and Salt Creek. The Des Plaines River flows south from Wisconsin, passing through many of the suburbs of Chicago before meeting the Kankakee River to form the Illinois River near the border of Will and Grundy counties.