<p>Cirque Valley Drainage System — There is a tree-like drainage pattern visible in Context Camera images that drains into a the head of a cirque-like valley. It's rather unusual to see these combined like this on Mars.
</p><p>NASA/JPL/University of Arizona (301 km above the surface, less than 5 km across.) 
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<a rel="nofollow" class="external text" href="https://www.flickr.com/people/71688597@N05">UAHiRISE (NASA)</a>
2018-04-16 12:04
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