Here are some great Lewis and Clark sites - some historical in nature, Some focused on present day information : -The Lewis and Clark Discovery Expedition - A great site run by folks who engage in river-based reenactments, with replicas of Lewis and Clark's boats as a centerpoint. -Lewis and Clark Trail Heritage Foundation, Inc. - Comprehensive historical site. -Sacagawea - Some Information on the Shoshone woman who helped guide the expedition. -The National Lewis & Clark Bicentennial Council - Celebrating the 200th anniversary of the Lewis and Clark expedition. Loaded with great information.