![The Lewis and Clark Expedition, 1803 to 1806, A Portrait of Army Leadership - Lewis and Clark - Corps of Discovery - U.S. Army Center of Military History The Lewis and Clark Expedition, 1803 to 1806, A Portrait of Army Leadership - Lewis and Clark - Corps of Discovery - U.S. Army Center of Military History](https://history.army.mil/lc/the%20mission/lc_pamphlet/25.jpg)
The Lewis and Clark Expedition, 1803 to 1806, A Portrait of Army Leadership - Lewis and Clark - Corps of Discovery - U.S. Army Center of Military History
![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:12.5/0/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
![Expansion and Exploration in the New Republic: The Louisiana Purchase and the Lewis and Clark Expedition | American Battlefield Trust Expansion and Exploration in the New Republic: The Louisiana Purchase and the Lewis and Clark Expedition | American Battlefield Trust](https://www.battlefields.org/sites/default/files/styles/resource_hero/public/thumbnails/image/Louisiana%20Purchase%20Landcape.jpg?h=4537bda6&itok=ktgAddpU)