![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
![Frontier Forts of the Lewis and Clark Expedition - Lewis and Clark - Corps of Discovery - U.S. Army Center of Military History Frontier Forts of the Lewis and Clark Expedition - Lewis and Clark - Corps of Discovery - U.S. Army Center of Military History](https://history.army.mil/lc/explore/barterbluebeads.jpg)
Frontier Forts of the Lewis and Clark Expedition - Lewis and Clark - Corps of Discovery - U.S. Army Center of Military History
![The Journals Of Lewis And Clark (Lewis & Clark Expedition): Meriwether Lewis, William Clark, Bernard DeVoto, Stephen E. Ambrose: 9780395859964: Amazon.com: Books The Journals Of Lewis And Clark (Lewis & Clark Expedition): Meriwether Lewis, William Clark, Bernard DeVoto, Stephen E. Ambrose: 9780395859964: Amazon.com: Books](https://images-na.ssl-images-amazon.com/images/I/71J7oMKB7KL.jpg)