On the edge... (Original NASA/MGS/MSSS b/w Frame)

Caption NASA originale:"This MGS-MOC image shows gullies on the Wall of a Martian South Mid-Latitude Unnamed Impact Crater. The Channels in each Gully head beneath an eroding overhang of layered rock, providing support for the hypothesis that some (if not all) Martian Gullies result from release of groundwater to the Surface".

Location near: 33,0° South Lat. and 213,4° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Autumn