The western border of Illinois is formed by the Mississippi River. This major river flows southward and serves as a natural boundary between Illinois and the states of Iowa and Missouri. The Mississippi River is one of the longest rivers in North America and plays a significant role in commerce and transportation for the region.
The Mississippi River forms the western border of Illinois.
Mississippi River
Mississippi.
The Rio Grande river is the river that is on the western border of Texas.
The Mississippi River
Mississippi River
The Mississippi River
the Mississippi river
Is the Delaware river the western border of the state.
The Mississippi River.
Mississippi.
Illinois is bordered by the Mississippi River on the west.