Illinois is bordered by the Mississippi River on the west.
Mississippi river
The Mississippi River forms the western boundary of the State of Illinois.
The Mississippi River forms the western border of Illinois.
Mississippi river
The Mississippi River forms the western boundary of Illinois.
The Ohio River forms the western boundary of West Virginia.
western
Missisippi
The western border of Illinois is formed by the Mississippi River. This river serves as a boundary for a total of 10 states, including Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana.
The Mississippi river forms the boundary between Missouri and Illinois!
Two rivers partially form Illinois State's Eastern boundary. The Wabash River is one river that forms Illinois' boundary. The Ohio River is the other river that forms the state's boundary.
Ohio River