Ohio River course forms the northern borders of West Virginia and Kentucky; and the southern borders of Ohio, Indiana and Illinois, until it joins the Mississippi River at the city of Cairo, Illinois. Where the Ohio joins the Mississippi is the lowest elevation in the state of Illinois, at . The Ohio River, which flows westward from Pittsburgh, Pennsylvania, to Cairo, Illinois, is the largest tributary, by volume, of the Mississippi River in the United States. At the confluence, the Ohio is considerably bigger than the Mississippi. Measured by long-term mean discharge in cubic feet per second and cubic meters per second,
Indian Creek (Fox River tributary) County. A lake and State Recreation Area named for Chief Shabbona, is located in the community of Shabbona, which was also named for the Indian chief. Paw Paw Creek is a short tributary of Indian Creek that runs in a southeasterly direction near Paw Paw, Illinois. Indian Creek (Fox River tributary) Indian Creek, also known as Big Indian Creek, is a tributary of the Fox River in Lee, LaSalle, and DeKalb counties in Illinois. Indian Creek rises north of Paw Paw, Illinois, near Shabbona Grove and joins the Fox River near Wedron. The stream meanders across parts of Lee, LaSalle