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I honestly, am not quite sure, but I think it's either the Mississippi or Missouri river that they may be asking for, but it could also be various plains. I'm sorry, I suck at History/Geography, I hope it helped a little though. I wish I could be more helpful, I saw you haven't received an answer, so I thought I'd give it a try. Goodluck! ;)

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12y ago
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2d ago

Lewis and Clark had to cross the Rocky Mountains in order to reach the Pacific Ocean. This was a challenging and physically demanding part of their journey as they navigated through rough terrain and harsh weather conditions.

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Q: What barrier did Lewis and Clark have to cross in order to reach the Pacific Ocean?
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Related questions

What geographical barrier did Lewis and Clark have to cross to reach the pacific ocean?

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.


What geographic barrier did Lewis and Clark have to cross in order to reach the pacific ocean?

Fort clatsop


What geographical barrier did Lewis and Clark have to cross in order to reach the Pacific Ocean?

Lewis and Clark had to cross the Rocky Mountains to reach the Pacific Ocean.


What ocean did Lewis and Clark journey to?

Lewis and Clark journeyed to the pacific ocean


When did Lewis and Clark sail the pacific ocean?

Lewis and Clark reached the pacific ocean in November 15 1805


What was accomplished by the Lewis and Clark Expedition?

Lewis and Clark found a pathway to the Pacific Ocean and Lewis found a passageway from the ocean to another place.


Who explored the American West to the Pacific Ocean in 1804?

Louis and Clark reached the Pacific ocean in 1805.


Where and what did William and Lewis?

Lewis and Clark explored the Pacific Northwest and blazed a trail to the Pacific Ocean.


What did Lewis and Clark find when they arrived at the Pacific?

The Ocean...


Where did Lewis and clark end up?

The pacific ocean


Which exploration reach the Pacific ocean?

Lewis and Clark.


Which 2 explorers led the expedition over the Rocky Mountains to the Pacific Ocean?

Lewis and Clark were the two explorers that led the expedition over the Rocky Mountains to the Pacific.