Yellow River (Indiana) larger and joins the Kankakee across the border in Illinois. The Kankakee River joins the Des Plaines River south of Joliet, Illinois, forming the Illinois River. Together they flow the length of the state of Illinois before joining the Mississippi River, north of St. Louis. Main Poc was a warrior and chief among the Yellow River Potawatomi first coming to notice at the Treaty of Greenville (July 1795), which was to bring peace to the frontier. Within a year, Main Poc was leading raiding parties across the Mississippi into Spanish Territory. By 1804, Main Poc and Turkey Foot were raiding
Big Sandy Creek (Illinois) two streams combine shortly before discharging into the Illinois River opposite the hamlet of Montezuma, Illinois. Sand discharged by the alluvial creeks may have helped form McEvers Island, a silt island in the Illinois River just below the mouth of the creek. Big Sandy Creek (Illinois) Big Sandy Creek, often called the "Big Branch", is a tributary of the Illinois River in central Illinois. It drains a large portion of southwestern Morgan County and southern Scott County. The drainage of Big Sandy Creek includes Lake Jacksonville and the county seat of Scott County, Winchester, Illinois. Most of the Big Sandy