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![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
![Map of Lewis and Clark's Track Across the Western Portion of North America in 1804, 5, & 6 Stock Photo - Alamy Map of Lewis and Clark's Track Across the Western Portion of North America in 1804, 5, & 6 Stock Photo - Alamy](https://c8.alamy.com/comp/MAXB0F/map-of-lewis-and-clarks-track-across-the-western-portion-of-north-america-in-1804-5-6-MAXB0F.jpg)