Alexander Mackenzie
america
a mountainous one.
colroado river
The western boundary of Romania is with Hungary.
The western boundary of Romania is with Hungary.
It definitely has to be Chile (Western South America)
the
the
The Ural Mountains and the Ural River mark the western boundary of Asia.
Mississippi River
Boundary lines separate countries in the western hemisphere, marking the limits of their territory. Regions within the western hemisphere, such as North America, South America, and the Caribbean, group countries together based on geographic proximity and shared characteristics. Together, boundaries and regions help organize the diverse countries in the western hemisphere for administrative, political, and cultural purposes.
1803: The Louisiana Purchase extends the western boundary of the United States to the Rocky Mountains, occupying the drainage area of the Mississippi River, as estimated by the French explorer Robert La Salle. The Purchase doubled the territory of the United Stateshttp://geography.about.com/od/politicalgeography/a/usboundary.htm