Herbert, Janis. Lewis and Clark for Kids. Chicago Review Press, Chicago, 2000.
Kroll, Steven. Lewis and Clark: Explorers of the American West. A Holiday House Book, New York, 1994.
Van Steenwyk, Elizabeth. My Name is York. Rising Moon, Northland Publishing, Arizona, 1997.
Keelboats - View stages of building a replica of the keelboat used by Lewis and Clark.
Discovering Lewis & Clark - Excellent interactive site which has recorded journal excerpts (sound bites) and information on the preparations and the expedition.
Lewis and Clark's Historic Trail - Another great site for valuable information on Lewis and Clark. Includes maps, timelines, and biographies on Lewis and Clark.
Monticello, Home of Thomas Jefferson - Website includes Jefferson's instructions to M. Lewis, as well as the June 1st, 2001 press release announcing the observance of the 200th anniversary of the Lewis and Clark expedition.