HiRISE 4K: Chryse Planitia Surfaces
This image shows part of the surface of Chryse Planitia, near the mouth of several of the giant outflow channels carved by massive floods. At this location the channel is much too large to be seen within a HiRISE image, and this shows an area of level plains near the mouth.
Full cutout on Flickr: https://flic.kr/p/2peC3MA
NASA/JPL-Caltech/UArizona