The Wabash River forms the easter border of Illinois. I've noticed that the previous answer was the Ohio River. The Ohio River actually is what runs along the southern tip of Illinois.
The river that borders Eastern Cango is Lake Tanganyika.
The Wabash River forms the southern portion of Indiana's western border. The northern portion of Indiana's western border is simply a straight line marked on the map. The southern border of Indiana is also a river - the Ohio.
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.
The Mississippi River forms the western border of Illinois.
The Rhine River helps to form part of France's border on the eastern side of the country.
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.
my but hole
At its largest extent, the Persian Empire reached the river Indus (in present day Pakistan). This was not always the eastern border as the size of the empire varied. Save
The two rivers that form the northern border of North Korea are the Yalu River and the Tumen River.
Chipre
Atlantic Ocean
Lake Erie and Lake Huron form most of the eastern border of the Michigan's lower peninsula.