Photos of Arsia Mons.
Viking imagery draped over MOLA topography of Arsia Mons (vertical exaggeration) (NASA/JPL/MOLA Science Team)


Quick facts
- About 435 km across with a 110–138 km summit caldera
- Roughly 30 times the volume of Hawaii's Mauna Loa
- Second-largest known volcano by volume after Olympus Mons
- Hosts a recurring orographic cloud each southern winter
- Contains several possible cave-entrance pits
