Vinson Massif is the highest mountain of Antarctica, lying in the Sentinel Range of the Ellsworth Mountains, which stand above the Ronne Ice Shelf near the base of the Antarctic Peninsula. The massif is located about 1,200 kilometres (750 mi) from the South Pole and is about 21 km (13 mi) long and 13 km (8.1 mi) wide. At 4,892 metres (16,050 ft) the highest point is Mount Vinson, which was named in 2006.
Vinson Massif was first seen in 1958 and first climbed in 1966. An expedition in 2001 was the first to climb via the Eastern route, and also took GPS measurements of the height of the peak. As of February 2010, 700 climbers have attempted to reach the top of Mount Vinson.