This image in the north polar region of Mars features some very large barchan dunes indicating unidirectional flow and high sand supply.

ID: ESP_054542_2625
date: Friday, 16 March 2018
altitude: 319 km (197.78 mi)

https://uahirise.org/hipod/ESP_054542_2625
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA