Map

Image from: https://commons.wikimedia.org/wiki/File:UnitedStatesExpansion.png Image in the public domain.

These interactive maps can help you get a good sense of how quickly the territory of the United States expanded during the westward expansion years.

• Interactive Historical Boundaries of the U.S. (1783-1912)
• Interactive Westward Expansion Map (1790-1850)
• Westward Expansion Interactive Map (1783-1850)