<p>American chestnut (<i>Castanea dentata</i>) leaves, Ricketts Glen State Park, Luzerne County, as seen from the Grand View Trail.
</p><p>The largest (about 20 feet high) and healthiest American chestnut tree I've ever seen. Didn't detect any chestnut blight (orangish cankers). Couldn't get a descent shot of the entire tree; it was all but enveloped by several robust beeches. 
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Came across <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/nicholas_t/2578944299">another disease-free, good-sized American chestnut tree</a> several years ago in Delaware State Forest, Pike County.
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originally posted to <b><a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a></b> as <a rel="nofollow" class="external text" href="https://flickr.com/photos/14922165@N00/4657182594">Luminous</a>