William Clark's 1814 map, John Colter route through Yellowstone
By Yellowstone Volcano Observatory
1814 (approx.)
![William Clark's 1814 map, John Colter route through Yellowstone](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/Colter.jpg?itok=s3oxr19w)
Detailed Description
William Clark's 1814 map, indicating the route of John Colter during the winter of 1807-1808. (Library of Congress, Geography and Map Division, Washington, D.C.)
Sources/Usage
Public Domain.