The expedition lasted more than three Years (including plans and preparations).
What was the Lewis and Clark expedition?
The Lewis and Clark expedition was organized by the United States of America after new territories had been gained through the Louisiana Purchase that doubled the size of the nation.
Lewis and Clark’s expedition was meant to explore the new territory that the United States had acquired so that the government would know best how to proceed. Including the plans and preparations for the expedition, the survey took about 3 years.
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