Illinois River 20 miles (32 km) of its course, the Illinois is separated from the Mississippi River by only about five miles, by a peninsula of land that makes up Calhoun County. The Illinois joins the Mississippi near Grafton, approximately 25 miles (40 km) northwest of downtown St. Louis and about 20 miles upstream from the confluence of the Missouri River and the Mississippi. South of Hennepin, the Illinois River is following the ancient channel of the Mississippi River. The Illinoian Stage, about 300,000 to 132,000 years ago, blocked the Mississippi near Rock Island, diverting it into its present channel. After the
King River (Great Southern, Western Australia) The land along the river is estimated as being 83% cleared yet the water quality is generally healthy fresh water. The salinity level of the King River at discharge is 800 mg/L. The main tributary of the King River is Mill Brook which joins the King about north-west of the Upper King Bridge. King River (Great Southern, Western Australia) The King River is a river in the Great Southern region of Western Australia. The river rises east of the town of Redmond and then flows for approximately and along with the Kalgan River drains into Oyster Harbour and finally King