Castle Mountain in Alaska from east
<p>National Park Service, Alaska Region
</p>
NPS photo by Neal Herbert
<a rel="nofollow" class="external free" href="https://www.flickr.com/photos/alaskanps/39131592325/in/album-72157658824312812/">https://www.flickr.com/photos/alaskanps/39131592325/in/album-72157658824312812/</a>