Two illustrations: Prospectors and emigrants crossing the parks among the mountains, en route to Leadville, with dead horses along the road; surveyors starting on an expedition to fix the boundaries of claims.
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA
<p><a rel="nofollow" class="external free" href="https://www.loc.gov/pictures/resource/cph.3b35998/">https://www.loc.gov/pictures/resource/cph.3b35998/</a>  - Reproduction Number: LC-USZ62-89627 (b&amp;w film copy neg.)
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Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA