What river formed the western border of the United States in 1783?
Beside this, what body of water formed the western boundary of the United States in 1783?
A map of the United States at the close of the American Revolutionary War (1783) showing the newly formed States, and their claims to the lands west of the Allegheny Mountains to the Mississippi River.
Similarly, what river forms our western boundary? The Mississippi River formed the border between the United States' land (yellow, green) and Spanish land (pink).
Keeping this in view, where is the western boundary for the United States in 1783?
When the US negotiated its peace treaty with Great Britain in 1783, the western boundary of the US, in most places, was the Mississippi River. Land west of there belonged to France and Spain.
What natural feature formed the western border of the United States?
The main geographic feature that formed the boundary of the thirteen British colonies in North America was the Appalachian Mountains.