<div class="description">
1 map, colored; Relief shown by contours and spot heights.; Culture and drainage in part compiled from aerial photographs taken 1939. Topography by plane-table methods 1946.; Contour interval 10 feet.; Scale 1:62,500</div>
This file was contributed to Wikimedia Commons by <a href="https://en.wikipedia.org/wiki/en:University_of_Illinois_Urbana-Champaign_University_Library" class="extiw" title="w:en:University of Illinois Urbana-Champaign University Library"><span title="library system of the University of Illinois">University of Illinois Urbana-Champaign University Library</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 Illinois Digital Heritage Hub.<span style="text-align:left">
<ul><li><a rel="nofollow" class="external text" href="https://digital.library.illinois.edu/items/a182f0a0-994e-0134-2096-0050569601ca-0">Record in source catalog</a></li>
<li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/e9f6d57b2dc8f98d50efeaa6781c6397">e9f6d57b2dc8f98d50efeaa6781c6397</a></li></ul></span>