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_2240
date: 13 April 2018
altitude: 301 km

https://uahirise.org/hipod/ESP_054896_2240
NASA/JPL-Caltech/University of Arizona
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