![A map of Lewis and Clark's track, across the western portion of North America from the Mississippi to the Pacific Ocean; by order of the executive of the United States in 1804, A map of Lewis and Clark's track, across the western portion of North America from the Mississippi to the Pacific Ocean; by order of the executive of the United States in 1804,](https://digital.libraries.psu.edu/digital/api/singleitem/image/maps1/30367/default.jpg)
A map of Lewis and Clark's track, across the western portion of North America from the Mississippi to the Pacific Ocean; by order of the executive of the United States in 1804,
![A map of Lewis and Clark's track, across the western portion of North America from the Mississippi to the Pacific Ocean : by order of the executive of the United States in A map of Lewis and Clark's track, across the western portion of North America from the Mississippi to the Pacific Ocean : by order of the executive of the United States in](http://tile.loc.gov/image-services/iiif/service:gmd:gmd412:g4126:g4126s:ct000028/full/pct:25/0/default.jpg)
A map of Lewis and Clark's track, across the western portion of North America from the Mississippi to the Pacific Ocean : by order of the executive of the United States in
![A Map of Lewis and Clark's Track, Across the Western Portion of North America From the Mississippi to the Pacific Ocean - Art Source International A Map of Lewis and Clark's Track, Across the Western Portion of North America From the Mississippi to the Pacific Ocean - Art Source International](https://artsourceinternational.com/wp-content/uploads/2017/10/ASIR-092-LEWIS-CLARK.jpg)
A Map of Lewis and Clark's Track, Across the Western Portion of North America From the Mississippi to the Pacific Ocean - Art Source International
![A map of Lewis and Clark's track across the western portion of North America, from the Mississippi to the Pacific Ocean - by order of the executive of the United States in A map of Lewis and Clark's track across the western portion of North America, from the Mississippi to the Pacific Ocean - by order of the executive of the United States in](https://c8.alamy.com/comp/P9J3XC/a-map-of-lewis-and-clarks-track-across-the-western-portion-of-north-america-from-the-mississippi-to-the-pacific-ocean-by-order-of-the-executive-of-the-united-states-in-1804-5-6-P9J3XC.jpg)