Antarctica of centuries. Several Antarctic ice streams, which account for about 10% of the ice sheet, flow to one of the many Antarctic ice shelves: see ice-sheet dynamics. East Antarctica lies on the Indian Ocean side of the Transantarctic Mountains and comprises Coats Land, Queen Maud Land, Enderby Land, Mac. Robertson Land, Wilkes Land, and Victoria Land. All but a small portion of this region lies within the Eastern Hemisphere. East Antarctica is largely covered by the East Antarctic Ice Sheet. Vinson Massif, the highest peak in Antarctica at , is located in the Ellsworth Mountains. Antarctica contains many other mountains,
Mill Mountain Mill Mountain Mill Mountain () is a large flat-topped mountain, high, forming the eastern end of Festive Plateau in the Cook Mountains of Antarctica. This mountain was probably sighted by the British National Antarctic Expedition (1901–04) under Captain Robert F. Scott, who gave the name "Mount Mill," after British Antarctic historian Hugh Robert Mill, to a summit in the nearby Reeves Bluffs. This area was mapped by the United States Geological Survey from surveys and U.S. Navy photography (1959–63). A prominent mountain does not rise from the bluffs, and since the name "Mount Mill" is in use elsewhere in Antarctica,