Kaiser Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)

Original caption:"As the MGS Primary Mission drew to an end, the Southern Hemisphere of Mars was in the depths of Winter. At high latitudes, it is dark most - if not all - of the day. Even at middle latitudes, the Sun shines only thinly through a veil of Water and Carbon Dioxide Ice Clouds and the ground is so cold that Carbon Dioxide Frosts have formed. Kaiser Crater (located at approx. 47° South Latitude and 340° West Longitude) is one such place. At a latitude comparable to Seattle, Washington, Duluth, Minnesota, or Helena, Montana, Kaiser Crater is studied primarily because of the sand Dunefield found within the confines of its Walls (lower center of the MOC image). The normally dark-gray or blue-black sand can be seen in this image to be shaded with light-toned frost. Other parts of the Crater are also frosted (...)".