<p>Down in the Trenches (Fossae Near Mangala Valles Source) 
</p>
NASA/JPL/University of Arizona (5 km across; <a rel="nofollow" class="external text" href="http://www.uahirise.org/PSP_010465_1610">www.uahirise.org/PSP_010465_1610</a>)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/71688597@N05">UAHiRISE (NASA)</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/uahirise-mars/29701064975/">PSP_010465_1610</a>