HiRISE: Frosty slopes in late spring

This HiRISE image, approximately 1.5 by 3 kilometers, shows frosted gullies on a south-facing slope within a crater. At this time of year only south-facing slopes retain the frost, while the north-facing slopes have melted. Gullies are not the only active geologic process going on here. A small crater is visible at the bottom of the slope. [More at link]