Lewis and Clark had to cross the Rocky Mountains to reach the Pacific Ocean.
You would cross the Atlantic Ocean, and you could reach Europe or Africa.
The Pacific Ocean
You would cross the Atlantic Ocean, and you could reach Europe or Africa.
the isthmus of Panama
the isthmus of Panama
The Isthmus of Panama
Lewis and Clark had to cross the Rocky Mountains to reach the Pacific Ocean. This rugged and challenging terrain presented a significant geographical barrier for their expedition.
Hudson sailed across the Atlantic Ocean to get to North America.
Fort clatsop
The Isthmus of Panama
US troops had to cross the Atlantic Ocean in order to reach Europe.