<p>Irregular Structures in Huo Hsing Vallis – These structures are young and irregularly shaped, appearing like the scallop-shaped depressions in Utopia Planitia. Are they the same?
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NASA/JPL/University of Arizona (290 km above the surface; <a rel="nofollow" class="external text" href="https://www.uahirise.org/PSP_002150_2110">www.uahirise.org/PSP_002150_2110</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/39126861715/">PSP_002150_2110</a>