• photo of a replica keelboat with a crew member on the bow at sunset

    Lewis & Clark

    National Historic Trail ID,IL,IA,KS,MO,MT,NE,ND,OR,SD,WA

Comment and Review

Documents Open for Public Review

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    Other Plans and Projects

    An archive of completed projects as well as projects without documents open for comment may be found on the PEPC website.

    Did You Know?

    Tools of scienc

    Jefferson expected the Expedition to learn about the people, plants and animals of the newly acquired Louisiana Purchase. None of the men of the Expedition was a trained scientist, but fulfilling Jefferson’s instructions required skills in cartography, ethnography, botany, zoology, and meteorology.