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Before Lewis met up with Clark, he began the expedition on August 30, 1803 in Pittsburgh PA. Lt. William Clark would offer to join Lewis on the expedition weeks later on October 13, 1803 at Camp Dubois (in present-day Indiana). From there, they sailed down the Ohio River towards St. Louis. In spring 1805, they continued to the headwaters of the Missouri River, struggled across the Continental Divide, and headed west along the Salmon, Snake, and Columbia Rivers to the Pacific. They landed at the mouth of the Columbia River, Astoria, Oregon. The expedition then ended on September 23, 1806 upon their return to St. Louis from Oregon.

If you believe that the expedition began in Pittsburgh, then it took 2 years and 25 days.

If you believe that the expedition began when Clark joined then it took 1 year 11 months and 11 days.

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Q: How long were Lewis and Clark gone on their trip?
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Related questions

How long was the return trip of Lewis and Clark?

they went back on the specific ocean


Where did Lewis and clark begain their trip?

their trip began in Missouri


Who did Lewis and Clark encounter on there trip?

No, they stared the trip together


When did the Lewis and Clark start their trip?

18031803


What did Lewis and Clark do on their trip?

They discovered the Northwest Passage.


Did Lewis and Clark explore Wisconsin?

Lewis and Clark never explored Wisconsin. They followed the Missouri River for much of their trip.


Who was president when the Lewis and Clark trip was going on?

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What problems they had in the Lewis and clark expedition?

She had to carry her child on the trip


What reasons did Lewis and Clark have for separating on their return trip?

Plese answer


Who asked Lewis and clark to go on their trip?

Thomas Jefferson


Why did Lewis and Clark's return trip have to be timed perfectly?

The Lewis and Clark expedition return trip had to be timed perfectly so that the Missouri River would be free of ice. If they waited too long to began the return journey, they would have to endure another harsh winter on the Plains.


Did Lewis and Clark always travel together?

No they did not. On their homeward trip back, Lewis and Clark went their separate ways. They later met up.