Gullies with Dramatic Lighting On Mars
This image was acquired to look for frost on these generally equator-facing slopes, which are visible in the shadows after enhancing the brightness levels.
It is also a dramatic image given the low-sun illumination.
The color cutout has north down (illumination from the right side) so that downhill is down.
ID: ESP_044514_1315
date: 25 January 2016
altitude: 248 km
https://uahirise.org/hipod/ESP_044514_1315NASA/JPL-Caltech/UArizona