This image from NASA's Mars Global Surveyor shows a steep a field of dark sand dunes in an unnamed crater in the Noachis Terra/Hellespontus region of Mars.

29 July 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a field of dark sand dunes in an unnamed crater in the Noachis Terra/Hellespontus region of Mars. In southern autumn, the skies are generally clear and the sun comes in at a steep enough angle that martian dunes look especially striking.

Location near: 43.6°S, 320.4°W
Image width: ~3 km (~1.9 mi)
Illumination from: upper left
Season: Southern Autumn

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