Mapping the Expedition

Interactive Maps

The Internet is making easy and accessible the delivery of a range of Lewis and Clark maps and map data from static paper documents to computerized "smart" maps. Likewise, multimedia and other visual technological advances are making it possible to present and explore map documents and information in new ways over the Web.

Below are selected links to interactive mapping sites where you can explore the ground Lewis and Clark covered.

• David Rumsey Map Collection, Lewis and Clark Expedition GIS
• GCS Research: The Lewis and Clark Geosystem
• Lewis and Clark gNet
• Oregon State University, Wildlife Along the Lewis and Clark Trail
• Smithsonian—National Museum of Natural History, Lewis and Clark as Naturalists
• University of Missouri, Lewis and Clark Across Missouri
• U.S. Fish and Wildlife Service—Changes: The Lower Columbia Then and Now
• USGS InfoLINK Missouri River Data and Maps
• USGS National Atlas—Human and physical geographic maps

Follow the journey of the Corps of Discovery. This animated GIF shows the complete route as well as the westbound and divergent eastbound routes.

View a fly-through tour of the of the Lewis & Clark route through three-dimensional terrain at Lemhi Pass, Montana. View a photographic virtual tour.