At the southern end of an ancient impact crater and abutting another one, is a group of yardangs. Known for their streamlined appearance, yardangs often form in the direction of the wind, but what was the source of their particular materials, and are they younger or older than the impact craters?

ID: ESP_016268_1675
date: 15 January 2010
altitude: 261 km

https://uahirise.org/hipod/ESP_016268_1675
NASA/JPL-Caltech/University of Arizona
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