May 1804, the Corps of Discovery set off from St. Louis on their quest to find a Northwest water route to the Pacific. Two centuries later, many of the marvels they witnessed are gone, while many remain. Along the trail, The Nature Conservancy and partners are working to protect and restore America's natural heritage -- for the next two centuries and beyond.

The Journey		The Places		The Species
Step into one of history’s great adventures, as you follow Lewis and Clark on their more than 8,000-mile journey through the American West. Read excerpts from the journals of Lewis and Clark. More...		The Corps entered Sioux country, as they entered North and South Dakota. It is here, near present-day Bismarck, North Dakota that they made winter camp among the Mandans. Explore the Conservancy's work along the route using an interactive map. More...		The Corps of Discovery  recorded more than 200 species new to Western science during their journey. No animal evokes the American West quite like the bison, also called the buffalo. More...

Photo Credits: Top, Sunset over the Missouri River near Wing, North Dakota © Layne Kennedy; Left, Elk © Bob Gress;
Center, Missouri River near Bismarck, North Dakota © USGS; Right, bison © Harvey Payne