<p>This image is part of a campaign to image potential impact craters in the south polar layered deposits (ice cap). This feature looks like a strong candidate for an impact crater because it is very circular are still has a raised rim. 
</p><p>The sizes and densities of impact craters provide an estimate for the age of the landscape, which in turn provides a minimum age for the icy layers.
</p><p>NASA/JPL/University of Arizona
</p>
<a rel="nofollow" class="external text" href="https://www.uahirise.org/ESP_058600_0990">www.uahirise.org/ESP_058600_0990</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/71688597@N05">UAHiRISE (NASA)</a>
2019-03-26 11:54
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/uahirise-mars/47483939132/">A Crater on the South Polar Layered Deposits</a>