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.

ID: ESP_039114_1115
date: 30 November 2014
altitude: 253 km

https://uahirise.org/hipod/ESP_039114_1115
NASA/JPL-Caltech/University of Arizona
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