Possible Landslide Deposit on Arsia Mons. Hummocky terrain makes up most of this flow, and grades into the highly ridged, concentric flow front. These features may be pressure ridges at the front of the flow or, in some places, deceleration ridges formed as the flow came to a standstill. Small lava flow fronts are visible on the smooth plains in front of the main flow. The image is about 130 km across.
North is to the upper left.