answersLogoWhite

0

The Mississippi River.

in 1783 Spain still had control of everything west or south of the Mississippi river including Florida and the Gulf of Mexico.

User Avatar

Wiki User

13y ago

Still curious? Ask our experts.

Chat with our AI personalities

FranFran
I've made my fair share of mistakes, and if I can help you avoid a few, I'd sure like to try.
Chat with Fran
CoachCoach
Success isn't just about winning—it's about vision, patience, and playing the long game.
Chat with Coach
ViviVivi
Your ride-or-die bestie who's seen you through every high and low.
Chat with Vivi
More answers

Prior to about 1800, the crest of the Appalachian Mountains. Around 1800, the Mississippi River was established as the western boundary of the US.

User Avatar

Wiki User

9y ago
User Avatar

Prior to the Louisiana Purchase in 1803, the western border of the US was mostly the Mississippi River.

User Avatar

Wiki User

7y ago
User Avatar

The Mississippi River.

User Avatar

Wiki User

15y ago
User Avatar

New Orleans and St louis

User Avatar

Wiki User

10y ago
User Avatar

Add your answer:

Earn +20 pts
Q: What river formed the western border of the US in 1800?
Write your answer...
Submit
Still have questions?
magnify glass
imp