This image shows high latitude terrain near the Sisyphi Montes. Patterned ground is everywhere throughout the scene, and there are several muted craters that have relaxed over time due to the presence of ground ice. Dark splotches are also common. Using full HiRISE resolution, the dark splotches exist around boulders. It is possible that the boulders are ejecta from the freshest crater in the full image.