Ambrose, Stephen E and Sam Abell. Lewis and Clark Voyage of Discovery. National Geographic Society, 2002.

Ambrose, Stephen E. Undaunted Courage: Meriwether Lewis, Thomas Jefferson, and the Opening of the American West. New York: Simon and Shuster, 1995.

A comprehensive, thoroughly researched review of the Lewis and Clark Expedition

Duncan, Dayton and Ken Burns. Lewis and Clark: The Journey of the Corps of Discovery. New York: Knoph, 1997.

Flam, Faye. "Medical Frontier." The Philadelphia Inquirer (February 17, 2003).

The article is part of a series commemorating the Lewis & Clark Expedition. Provides keen insight about the medicine used on the trip.

Rivers, Edens, Empires: Lewis and Clark and the Revealing of America http://www.loc.gov/exhibits/lewisandclark/

This Library of Congress website contains digital photos and descriptions of artifacts from the Lewis and Clark expedition.

The Lewis and Clark Journey of Discovery http://www.nps.gov/jeff/LewisClark2/CorpsOfDiscovery/Preparing/Prepari...

National Park Service. Story and pictures about preparation for the trip

Xpeditions http://www.nationalgeographic.com/xpeditions/activities/01/lewis.html

National Geographic site in which students use the Lewis and Clark Expedition information to create their own adventure.