This picture was taken by the High Resolution Stereo Camera (HRSC) onboard ESA's Mars Express orbiter, in colour and 3D, in orbit 18 on 14 January 2004 from a height of 275 km. The location is south of Valles Marineris at 15° South and 323° East. The resolution is 12 m per pixel, the area is 50 km across and shows a tectonically controlled karst-like structure in a vertical view. North is at top.
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