The Mississippi River defines portions of these states' borders:Along the east side of the river:MinnesotaWisconsinIllinoisKentuckyTennesseeMississippiAlong the west side of the river:IowaMissouriArkansasLouisiana
Due to its great length, there are many tributaries of the Mississippi River. Five of these tributaries are the St. Croix River, the Missouri River, the Ohio River, the Rock River, and the White River.
The three states that touch the Ohio and Mississippi river is Illinois, Kentucky, and Missouri.
texas arkansas lousiana
Missouri, Kentucky, and Illinois
Indiana, Ohio, and Illinois
Lake Erie
The Ohio River creates the southern borders of Indiana, Illinois, and Ohio where it meets the Mississippi River.
The confluence of the Ohio and Mississippi is essentially the Missouri-Illinois-Kentucky "triple point".
Arkansas Alaska Arizona
Kentucky, Indiana, Illinois
At Cairo, Illinois, the Ohio joins the Mississippi. The three states that have borders there are Illinois (to the NE), Kentucky (to the SE) and Missouri (to the W).