A colorized topographic map of the martian impact basin Argyre, together with its surroundings, from the Mars Orbiter Laser Altimeter (MOLA) instrument of the "Mars Global Surveyor" spacecraft. Argyre, the second deepest basin on Mars, lies in the southern hemisphere, southeast of the canyon system Valles Marineris. Some of the features in this image have been annotated in Wikimedia Commons.