Mars - Viking 1 Orbiter
Summit caldera of Olympus Mons, Mars
Viking 1 Orbiter image of the summit caldera complex of Olympus
Mons volcano, Mars. Note the circular grabens and wrinkle
ridges within the caldera. Surrounding the summit are radiating
flow terraces. The width of this frame is 175 km. North is up.
(Viking Orbiter 890A68)
Mars
Viking Missions
Mars: Geology
Volcanism in the Solar System
