<p>Fluvial Fan on Aeolian Dunes – Fine sand ripples, gullies and whirlwind tracks are also a feature of this image.
</p><p>NASA/JPL/University of Arizona
</p>
(5 km across; <a rel="nofollow" class="external text" href="http://www.uahirise.org/PSP_004130_1325">www.uahirise.org/PSP_004130_1325</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/30268247736/">PSP_004130_1325</a>