Topographic map of Argyre Planitia
Topographic map of Argyre Planitia
After Hellas basin, Argyre Planitia is the second largest impact structure on Mars. It is one of the most striking features in the southern Martian highlands, and has a diameter of about 1800 kilometres and is five kilometres deep. During winter in Argyre Planitia and the surrounding highlands, temperatures can drop to minus 100 degrees Celsius, and carbon dioxide frost falls from the atmosphere and covers the landscape.
