A color image draped onto digital topography shows McLaughlin Crater in a 3-D perspective, looking toward the east. On the floor of the crater are light-toned sedimentary deposits that contain alteration minerals. Overlying those layered rocks are debris flows that may have been generated from impact ejecta from Keren Crater, present on the south rim. McLaughin Crater once contained a lake that was likely fed by groundwater. Rapid deposition of sediments would have been favorable for preservation of organic materials if any were present. Image Credit: High Resolution Stereo Camera (HRSC)/Mars Express/Freie Universität Berlin