National Geographic: Lewis and Clark - Includes an interactive journey log, maps, historical photos, drawings, a timeline, and details of their discoveries. PBS Online: Lewis and Clark - Companion site to the Ken Burns film, 'Lewis and Clark: The Journey of the Corps of Discovery.' Information on the explorers, expedition journals, trip timeline and maps, interviews with historical experts, an overview of Native American tribes, and classroom lessons. Discovering Lewis and Clark - Interactive workshop providing an overview of the journey of Lewis and Clark, including journal excerpts. Lewis and Clark Expedition - Expedition paintings and summary, with an annotated subject bibliography. Lewis and Clark Trail - Historical account of the Corps of Discovery along the Lewis and Clark Trail. Includes an events calendar, trail properties, and trail treasures. Following the Voyage of Discovery - A few historical FAQs, with an expedition map. Lewis and Clark - National Geographic's expedition gallery, with references. Lewis and Clark and the Revealing of America - Library of Congress online exhibition of navigation maps. Includes a virtual tour format. NPR : Hidden Treasures: Lewis and Clark's Map - In 1806, over a camp fire and food, Nez Perce Indian chiefs made a map for William Clark showing a short and safe journey through the Rockies. Harriet Baskas reports on this recently rediscovered rare Indian map. Part of the Hidden Treasures Radio Project. [5:42 Realaudio broadcast] Jefferson's Secret Message Regarding the Lewis & Clark Expedition - Letter asking Congress for money to fund the expedition. Lewis and Clark: A Journey - Full text of the first official account of the expedition. Includes maps and other resources.