The objective of this observation is to determine the nature of round mounds in depressions. The depressions may be part of the ribbed upper plains unit. Some of the edges of the depressions are upturned. The mounds appear to be smooth.
ID:
ESP_054896_2240date: 13 April 2018
altitude: 301 km
https://uahirise.org/hipod/ESP_054896_2240
NASA/JPL-Caltech/University of Arizona
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