Mount Jackson (Antarctica)

Mount Jackson
South-east of Mount Jackson ridge
Highest point
Elevation	3,184 m (10,446 ft)
Prominence	2,187 m (7,175 ft)
Listing	Ultra
Coordinates	71°23′S 63°22′W / 71.383°S 63.367°W / -71.383; -63.367Coordinates: 71°23′S 63°22′W / 71.383°S 63.367°W / -71.383; -63.367
Geography
Mount Jackson Antarctica
Climbing
First ascent	23 November 1964 by J C Cunningham (1927–80) of BAS team.

Mount Jackson (Mount Andrew Jackson and Mount Ernest Gruening) is a mountain that dominates the upland of the southern part of the Antarctic Peninsula. It is located in Palmer Land, within the Antarctic claims of Argentina, Chile and the United Kingdom. With an elevation of 3,184 metres (10,446 ft), Mount Jackson is the highest mountain in the Antarctic Peninsula and the British Antarctic Territory. Discovered by members of the United States Antarctic Service, 1939–41, it was named for Andrew Jackson, the seventh President of the United States. The first ascent of Mount Jackson was made by a team led by John Crabbe Cunningham of the British Antarctic Survey (BAS) in 1964. Mount Jackson's geology was studied in 1972 as part of the Palmer Island investigations by a team of geologists.

Mount Jackson and the Welch Mountains demarcate the central Black Coast, which is dissected by many inlets and is bounded on the west by Dyer Plateau of central Palmer Land. The two mountains rise above the ice shelf with reliefs of about 1,200–1,500 metres (3,900–4,900 ft) towards the east. They are interconnected by icefall zones forming a plateau with steep snow slopes. Mount Jackson rises from its southeast flanks, displaying a steeple summit, while the north flank is occupied by a vast cirque. Supraglacial moraines on the mountain's east side measure between 1–5 kilometres (0.62–3.11 mi) in length and display boulders at their distal ends.