North Polar Dunes (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)

Caption NASA originale:"This MGS-MOC image shows dunes in the North Polar Region of Mars. In this scene, the dunes and the plain on which the dunes reside, are at least in part covered by a bright CO2 frost. Dark spots indicate areas where the frost has begun to change, either by subliming away to expose dark sand, changing to a coarser particle size, or both. The winds responsible for the formation of these dunes blew from the South-West toward the North-East.

Location near: 76,3° North; 261,2° West
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring