These sand dunes in a crater south of Mawrth Vallis are being monitored to measure changes. However, active dunes also clear the dust off of the bedrock between the dunes, which may have diverse colors and compositions, as in the enhanced-color cutout.

ID: ESP_062863_1980
date: 24 December 2019
altitude: 282 km

https://uahirise.org/hipod/ESP_062863_1980
NASA/JPL-Caltech/UArizona
#Mars #science #NASA