the rocky mountains
The Rocky Mountains is the answer
Rocky Mountains, Im pretty sure.
Appalachian Mountains and Rocky Mountains
The Rocky Mountains and the Sierra Nevada Mountains.
No it did not cross the Rockies.
NO
sacagwea
1805
The US and Canada.
Sir Alexander MacKenzie (1764 - March 11, 1820) became the first European to cross the Rocky Mountains in 1793.
yes
Rocky Mountains
Mostly the high Rocky mountains, and the Sierra Nevadas. Although rivers were difficult to cross, people found ways to cross them at low water levels or at narrow passages.
The Oregon Trail- Megan
Rocky and Appalachian
the rocky mountains