<div class="description">
<ul><li><b>Scope and content:</b>  Original caption: A typical black spruce-tamarack muskey swamp in the lake states with a slow meandering stream flowing through it. Such swamps are commonly flooded by beaver killing the timber. The old beaver dam has been broken in this swamp and it is slowly draining and.</li></ul></div>
<div class="fn value">
Unknown author<span style="display: none;">Unknown author</span> or not provided</div>
August 1940<div style="display: none;">date QS:P571,+1940-08-00T00:00:00Z/10</div>
<a href="https://en.wikipedia.org/wiki/U.S._National_Archives_and_Records_Administration" class="extiw" title="en:U.S. National Archives and Records Administration">U.S. National Archives and Records Administration</a>