Mount Sidley volcano

Mount Sidley

Mount Sidley is the highest volcano in Antarctica, a member of the Volcanic Seven Summits, with a summit elevation of 4,181–4,285 metres (13,717–14,058 ft).^[2] It is a massive, mainly snow-covered shield volcano which is the highest and most imposing of the five volcanic mountains that comprise the Executive Committee Range of Marie Byrd Land. The feature is marked by a spectacular 5 km wide caldera^[3] on the southern side and stands NE of Mount Waesche in the southern part of the range.

• http://en.wikipedia.org/wiki/Mount Sidley