Mawrth Vallis

ExoMars Trace Gas Orbiter image of layered clay-rich deposits on the floor of one of the two ExoMars 2020 landing site finalists, located in the transition region between the cratered southern highlands and the smooth northern lowlands of Mars. The imaged region is located between Mawrth Vallis, an ancient water outflow-channel, and Oyama crater.

The image was taken by the orbiter’s Colour and Stereo Surface Imaging System, CaSSIS on 29 May 2018 and captures an approximately 43.1 x 7.1 km segment centred at 24.2°N/19.0°W. North is towards the bottom left in this orientation.