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
River Grove, Illinois River Grove, Illinois River Grove is a village in Cook County, Illinois, United States. The population was 10,227 at the 2010 census. River Grove is located at (41.925830, -87.840135). According to the 2010 census, River Grove has a total area of , all land. Just as nearby Elmwood Park and Oak Park are named after their historic elm and oak trees, River Grove gets its two-part name first from the community's shallow muddy plains river, and second from the majestic groves of American ash trees lining shore of the (Aux) Des Planes River "Bottomland." Credit goes to the village's early