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Vinson Massif (/ËvÉªnsÉn maeËsiËf/) mÃ¦ËsiËf is a large mountain massif that is 21 (km 13) mi long and 13 (km.8 1) mi wide and lies within The Sentinel range of The Ellsworth. Mountains it overlooks The Ronne Ice shelf near the base of The Antarctic. peninsulahe massif is located about 1,200 kilometres (750 mi) from the South Pole. Vinson Massif was discovered in January 1958 by U.S. Navy aircraft. In 1961, the Vinson Massif was named by USACAN, for Carl G. Vinson, Georgia congressman for his support for Antarctic exploration.
Rises in Vinson Massif. 1  Mount Vinson, in the Vinson Massif, is the highest mountain in the Sentinel Range, part of the Ellsworth Mountains near the Ronne Ice Shelf south of the Antarctic Peninsula. The expedition also climbed five other peaks in the range, including the four highest. 2  Mount Tyree, at 15,919 feet (4,852 meters), is the second highest peak in Antarctica and is only 147 feet lower than Mount Vinson.