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Perhaps the single most enigmatic of martian features is the eroded crater fill deposit colloquially called “White Rock.” It cannot be related to polar processes because it lies near the martian equator. As yet, no fully satisfactory explanation of White Rock has been made, although there is consensus that whatever it is, it has been modified by aeolian erosion due to it having both transverse and longitudinal erosional features. Location:
Latitude -8°, Longitude 355°. Mosaic composed of Viking orbiter
photographs 826A32-38, NGF orthographic version, red filter. Click here to view a high-resolution version of the image (2.97 MB)
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