Editing Caldera (section)

===Mars===
{{Further|Volcanism on Mars}}
The volcanic activity of [[Mars]] is concentrated in two major provinces: [[Tharsis]] and [[Elysium (volcanic province)|Elysium]]. Each province contains a series of giant shield volcanoes that are similar to what we see on Earth and likely are the result of mantle [[Hotspot (geology)|hot spots]]. The surfaces are dominated by lava flows, and all have one or more collapse calderas.<ref name = "Wilson"/> Mars has the tallest volcano in the Solar System, [[Olympus Mons]], which is more than three times the height of Mount Everest, with a diameter of 520&nbsp;km (323 miles). The summit of the mountain has six nested calderas.<ref>Philip's World Reference Atlas including Stars and Planets {{ISBN|0-7537-0310-6}} Publishing House Octopus publishing Group Ltd p. 9</ref>