<p>At the Boundary of Noachian Epoch Olivine-Rich Terrain – The Noachian period is roughly 4 billion years ago.
</p><p>NASA/JPL/University of Arizona (284 km above the surface, less than 5 km across)
</p><p>Source: <a rel="nofollow" class="external text" href="https://www.uahirise.org/ESP_016588_2000">www.uahirise.org/ESP_016588_2000</a>
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<a rel="nofollow" class="external text" href="https://www.flickr.com/people/71688597@N05">UAHiRISE (NASA)</a>
2018-07-18 11:57
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/uahirise-mars/43445747322/">ESP_016588_2000</a>