<p>Dunes with Large Gullies and Alcoves
</p><p>No images have been taken of these dunes during the winter, perhaps for good reason! But if possible, an image to check for changes in appearance between autumn and spring. 
</p>
NASA/JPL/University of Arizona (317 km above the surface. <a rel="nofollow" class="external text" href="https://www.uahirise.org/ESP_050054_2565">www.uahirise.org/ESP_050054_2565</a>)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/71688597@N05">UAHiRISE (NASA)</a>
2017-11-03 14:51
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/uahirise-mars/38287902801/">ESP_050054_2565</a>