Antarctica
lowest point: Bentley Subglacial Trench -2,555 m
highest point: Vinson Massif 4,897 m
note: the lowest known land point in Antarctica is hidden in the
Bentley Subglacial Trench; at its surface is the deepest ice yet
discovered and the world's lowest elevation not under seawater
Antigua and Barbuda
lowest point: Caribbean Sea 0 m
highest point: Boggy Peak 402 m
Arctic Ocean
lowest point: Fram Basin -4,665 m
highest point: sea level 0 m
Argentina
lowest point: Laguna del Carbon -105 m (located between
Puerto San Julian and Comandante Luis Piedra Buena in the province
of Santa Cruz)
highest point: Cerro Aconcagua 6,960 m (located in the northwestern
corner of the province of Mendoza)
Armenia
lowest point: Debed River 400 m
highest point: Aragats Lerrnagagat' 4,090 m
Aruba
lowest point: Caribbean Sea 0 m
highest point: Mount Jamanota 188 m
Ashmore and Cartier Islands
lowest point: Indian Ocean 0 m
highest point: unnamed location 3 m
Atlantic Ocean
lowest point: Milwaukee Deep in the Puerto Rico
Trench -8,605 m
highest point: sea level 0 m
Australia
lowest point: Lake Eyre -15 m
highest point: Mount Kosciuszko 2,229 m
Austria
lowest point: Neusiedler See 115 m
highest point: Grossglockner 3,798 m