Lewis and Clark Expedition Pathfinder

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    Subject Pathfinder

    Lewis and Clark Expedition

    In a letter dated June 20, 1803, President Thomas Jefferson detailed a mission that would change the course of American history. He told Meriwether Lewis Esquire, Captain of the first regiment of Infantry of the United States of America to:

    "to explore the Missouri river & such principal stream of it as by it's course and communication with the waters of the Pacific ocean, whether the Columbia, Oregon, Colorado or any other river may offer the most direct & practicable water communication across this continent for the purpose of commerce."

    The expedition itself lasted from 1804-1806 and was led by Captain Meriwether Lewis and an ex-army lieutenant from Kentucky, William Clark.

    Dewey Decimal Call Numbers

    • 978
    • 979
    • look in the biography section for Meriwether Lewis, William Clark, Thomas Jefferson or Sacagawea - look under their last name.

    Internet Sites

    Keywords for searching the Catalog/OPAC

    • Lewis and Clark Expedition 1804-1806
    • Explorers
    • West (U.S.) - Discovery and exploration
    • names of the specific people involved: Meriwether Lewis, William Clark, Thomas Jefferson or Sacagawea - look under their last name.

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    Use the "Primary & Middle School Resources" and select "Primary Search" and then try the keywords listed above.


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    Last revised: 6/21/11


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