The parallel ridges in this VIS image are part of Arsia Sulci - a region west of Arsia Mons. How these features were formed is unknown.
Orbit Number: 49165 Latitude: -5.7405 Longitude: 229.9 Instrument: VIS Captured: 2013-01-13 07:05
Photo credit: NASA/JPL-Caltech/Arizona State University
