The Rio Grande River
ricardo suck.
The Uruguay River forms the western border of Uraguay with Argentina.
The western border of Moldova is formed by the Prut river.
The Mississippi River forms the western border of Illinois.
The Mississippi River forms the western border of Illinois.
the northeast border of Texas is the red river
The Mississippi River forms the wavy western border of Illinois. And the Ohio Wabash River is the southern border of Illinois.
The Mississippi River.
Mississippi River
The Red River forms Oklahoma's southern border with Texas.
The Uruguay River forms the western border of Uraguay with Argentina.
The Mississippi River forms the western boundary of Tennessee.