Generally it is the geographical place beyond which an individual or state lays no claim in that direction
The Mississippi River forms Tennessee's western border.
The Pacific Ocean
The river that forms the western border of Illinois is the Mississippi River.
Siberia's western border is the Ural Mountains.
The Mississippi River forms the western border of Illinois.
Yes , we have 1 long continuous sand beach that makes up our Western border
Borders of North Carolina: South is South Carolina, West is Tennessee, North is Virginia and East is the Atlantic Ocean.
Cambodia is on the Vietnam western border.
Thailand lies on Cambodia's western border.
The western border of Czechoslovakia was an area known as Sudetenland.
Nebraska has a south-western border with Colorado and eastern border with Iowa.
Portugal shares Spain's western border.