Interplay of faulting and erosion within Valles Marineris is apparent here. A low, steep, and generally straight scarp occurs at the foot of the north canyon wall. The scarp apparently results from downward offset of the flat canyon floor relative to the wall. Gullies on the canyon wall are truncated by the scarp and thus predate it. The image is about 400 km across.
North is to the top of the image.