Dark Slope Streaks on the edge of an Unnamed Crater (Saturated Natural Colors; credits: NASA/MGS/MSSS)

Caption NASA originale:"This June 2003 MGS-MOC image shows a crater rim mantled with fine dust near 7.6°N, 171.8°W. Occasional avalanches of dust have created dark streaks that are tapered at their source and broaden downslope.
A suite of particularly large streaks are seen in the lower right quarter of the picture. The MOC narrow angle camera does not take color images; this full-resolution (1,5 m/pixel; 5 ft/pixel) picture has been "colorized" using data from a previous color image of Mars.
Sunlight illuminates this scene from the lower left".