This oblique perspective view of the Mawrth Vallis region of Mars was generated from the digital terrain model and the nadir and colour channels of the High Resolution Stereo Camera on ESA’s Mars Express. It shows two large, interconnected, and highly eroded craters sitting on the boundary between the martian highlands and lowlands (in Chryse Planitia). The larger crater is some 75 km across, and the smaller one about 35 km across. This can be seen in more detail in the associated perspective view.