description Mount Sidley Overview
Mount Sidley is the highest volcano in Antarctica at 4,285 m (14,058 ft), located in the Executive Committee Range of Marie Byrd Land in West Antarctica. It is a massive extinct shield volcano featuring a large summit caldera approximately 5 km wide. The mountain is almost entirely buried beneath the Antarctic ice sheet, with only its summit region exposed above the ice. Its remote location makes it one of the least visited major peaks on the continent.
help Mount Sidley FAQ
Where is Mount Sidley located?
Mount Sidley is located in the Executive Committee Range of Marie Byrd Land in West Antarctica. It is a massive, extinct shield volcano situated in one of the most remote and frozen regions on Earth.
How tall is Mount Sidley?
Mount Sidley rises to an elevation of 4,285 meters (14,058 feet). This makes it the highest volcano on the entire continent of Antarctica.
Is Mount Sidley an active volcano?
No, Mount Sidley is a long-extinct shield volcano. It is famous among geologists for its massive summit caldera, which measures approximately 5 kilometers wide, formed by ancient eruptions.
Has anyone ever climbed to the summit of Mount Sidley?
The mountain is heavily glaciated and almost entirely covered by ice, making expeditions extremely difficult. It was reportedly first summited in January 1990 by a team that included noted mountaineer Bill Atkinson.
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