What was the mighty River that Lewis and Clark had to conquer?

Question: What was the mighty River that Lewis and Clark had to conquer!?

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Best Answer - Chosen by Asker:

The Missouri River

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http://www!.google!.com & type in Lewis & Clark expeditionWww@QuestionHome@Com

Missouri RiverWww@QuestionHome@Com

The went up the Missouri and down the Columbia, if that counts as 'conquest'!.Www@QuestionHome@Com

Snake River!?Www@QuestionHome@Com