Olympus Mons
Mars Volcanoes
Mars Volcano and Impact Craters
Mars Volcano and Clouds
Olympus Mons

Olympus Mons

Courtesy of NASA/JPL

http://photojournal.jpl.nasa.gov/catalog/PIA02982


Color mosaic of Olympus Mons volcano on Mars from the Viking 1 Orbiter. Olympus Mons is about 600 km in diameter and the summit caldera is 24 km above the surrounding plains.