<p>Obstacles and Wakes in Lava – The ancient lava flow in this image was able to make it past some hills, but the rubble crust was caught and piled up, forming thick masses of debris.
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NASA/JPL/University of Arizona (<a rel="nofollow" class="external text" href="http://www.uahirise.org/ESP_048745_2095">www.uahirise.org/ESP_048745_2095</a>)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/71688597@N05">UAHiRISE (NASA)</a>
2017-02-21 10:06
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/uahirise-mars/32655415540/">ESP_048745_2095</a>