What river is the western border of the state of lllinois?

Answer 1

Mississippi River

Answer 2

The Mississippi is the river that forms the western border of Illinois.
The Mississippi River is at the Western border of Illinois. On the north is Lake Michigan and on the south it is bordered by the Ohio and Wabash Rivers.
The river that runs along the western border of the State of Illinois is the Mississippi river. The Mississippi river runs through ten states.
Illinois is bordered by the Mississippi River on the west.

Answer 3

The Mississippi River is the western border of Illinois.

Answer 4

The Mississippi river is the western border of the state of Illinois.

Answer 5

Mississippi river