The Mississippi River forms the border between Missouri and Illinois.
The Mississippi river forms the boundary between Missouri and Illinois!
The Mississippi River forms the western border of Illinois.
The Missouri River forms the border between Iowa and Nebraska.
Wisconsin!Wisconsin does NOT share a river border with Illinois, BUT Iowa, Kentucky, and Missouri do.
The Missouri River
The Missouri River forms the border between Iowa and Nebraska.
The Mississippi River forms the boundary between Illinois and Missorui
The Mississippi River forms the wavy western border of Illinois. And the Ohio Wabash River is the southern border of Illinois.
The Missouri River separates Iowa from Nebraska.
The Mississippi River forms the Western border of the States of Illinois, Tennessee, and Mississippi. The Mississippi River forms the Eastern border of the States of Iowa, Missouri, Arkansas, and Louisiana.
10 states. It forms part of the border for Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi and Louisiana.
Ohio