Dark streaks mark the steep slopes of this ridge located east of Mangala Valles. One theory about the creation of this feature is that downslope movement of a rock "clears" the brighter dust revealing the darker surface below.
Orbit Number: 51688 Latitude: -17.0589 Longitude: 211.394 Instrument: VIS Captured: 2013-08-08 22:02
Photo credit: NASA/JPL-Caltech/Arizona State University
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