HiPOD (17 April 2018): A Ridge at the Edge of Athabasca Valles  …

HiPOD (17 April 2018): A Ridge at the Edge of Athabasca Valles 

   The top of this ridge might have been here before any flows. (NASA/JPL/University of Arizona. 318 km above the surface. Black and white is less than 5 km across and enhanced color is less than 1 km.)