The focus of this image from NASA Mars Reconnaissance Orbiter is on the western end of a fan-shaped landform, located at the end point of a sinuous valley. Our observation covers crater-retaining mesas which overlie light-toned materials, both potentially related to the formation of the fan. There are also craters younger than the fan which impacted into these materials. http://photojournal.jpl.nasa.gov/catalog/PIA19845