This image shows where a fluvial channel changes from a depression to an inverted high standing channel in Terra Sirenum. That change likely marks the spot where the material was possibly elevated and more resistant to erosion.

ID: ESP_055220_1430
date: 8 May 2018
altitude: 251 km

https://uahirise.org/hipod/ESP_055220_1430
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA