<div class="description">
1:20,000</div>
Unknown date<div style="display: none;">Unknown date</div>
This file was contributed to Wikimedia Commons by <a href="https://www.wikidata.org/wiki/Q58036452" class="extiw" title="d:Q58036452"><span title="academic library system of the university of Colorado, Boulder">University of Colorado Boulder Libraries</span></a> as part of a cooperation project. The donation was facilitated by the <a href="https://en.wikipedia.org/wiki/Digital_Public_Library_of_America" class="extiw" title="w:Digital Public Library of America">Digital Public Library of America</a>, via its partner Plains to Peaks Collective.<span style="text-align:left">
<ul><li><a rel="nofollow" class="external text" href="https://cudl.colorado.edu/luna/servlet/detail/UCBOULDERCB1~17~17~45070~300591">Record in source catalog</a></li>
<li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/725d32acbf6eec108581b0ee142c3187">725d32acbf6eec108581b0ee142c3187</a></li></ul></span>