Olympus Mons is the largest volcano in our entire solar system. It is a shield volcano, meaning that they have gentle sloping sides that have been built up by lava flow. They
are similar to the volcanos found on the island of Hawaii, but is much larger.
Olympus Mons is 78,000 feet from the bottom to the top. Its width is 600 km across.
You can get an idea on how big Olympus Mons is when compared to the largest volcano on Earth, Mauna Loa in Hawaii
(bottom right picture). Mauna Loa is 33,000 feet from bottom to top.
This volcano is significant to the study of geology in that Olympus Mons is the
largest volcano found in our solar system to date. It was first photographed in the early 1970s,
and seems to be very similar to volcanoes found on Earth.