 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 point of the Antarctic Peninsula and the southernmost summit of the world with an elevation of more than 1000 ft. sierp 2019 roku wraz z Mount Ernest Gruening i Mount Andrew Jackson zostały włączone do Antarktyki.