its leader. Lewis was chosen mainly because he already had some knowledge of the west and was an experienced Army officer. After making further arrangements for the expedition, Lewis decided he wanted a co-captain and selected another Army officer, William Clark.
The goals of this expedition, as outlined by President Jefferson, were to study the Native American tribes living in the area as well as the plants, animals, geology and terrain of the region. The expedition was also to be a diplomatic one…
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