Olympus Mons is a type of volcano that's usually built almost entirely of fluid lava flows.
 Olympus Mons covers an area of about 300,000 km2 (120,000 sq mi), which is approximately the size of Italy or the Philippines, and it is supported by a 70 km (43 mi) thick lithosphere
 The extensional stresses in the detachment zones can produce giant landslides and normal faults on the volcano's flanks, leading to the formation of a basal escarpment

