Olympus Mons
>
Olympus Mons is a large shield volcano on Mars. It is over 21.9 km high as measured by the Mars Orbiter Laser Altimeter: about two and a half times taller than Mount Everest above sea level. Wikipedia
Volcano type: shield volcano
Coordinates: 18°39′N 226°12′E / 18.650°N 226.200°E
Location: Western Tharsis Rise, Mars
Peak: 21.9 km (13.6 mi) above datum; 26 km (16 mi) local relief above plains