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,
Mount Alexander (Antarctica) being considered more suitable to name. Mount Alexander (Antarctica) Mount Alexander () is a mountain with several summits, the highest 595 m, forming the rocky peninsula separating Gibson and Haddon Bays, on the south side of Joinville Island in Antarctica. The cliff marking the extremity of the peninsula was discovered and named Cape Alexander on January 8, 1893 by Thomas Robertson, master of the ship "Active", one of the Dundee whalers. The name was amended to Mount Alexander by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1956 following a survey by the Falkland Islands Dependencies Survey (FIDS) in 1953–54,