The small hill in this image of Amazonis Planitia has several dark slope streaks. These features are believed to form when down slope movement of rocks or other debris clear off some of the dust cover, revealing the darker rock material.
Orbit Number: 52100 Latitude: 13.5496 Longitude: 190.27 Instrument: VIS Captured: 2013-09-11 21:00
Photo credit: NASA/JPL-Caltech/Arizona State University