The inner and outer walls show bright and dark debris streaming downslope, some of it forming broad fans. This ridge overlies, and so is younger than, a second ridge running from top to bottom on the left side of the image. At the lower right hand corner of the image is a dark, relatively smooth region, approximately 30 square kilometers in area. This may be a place where warm ice has welled up from below. An isolated bright hill stands within it.
North is to the top of the picture, and the sun illuminates the surface from the upper left.