The Antarctandes (''Antartandes'' in Spanish), also known as the Antarctic Peninsula cordillera, is the mountain range that is located on the northern

Antarctic Peninsula The Antarctic Peninsula, known as O'Higgins Land in Chile and Tierra de San Martin in Argentina, and originally as Graham Land in the United Kingdom and the Palmer Peninsula in the United States, is the northernmost part of mainland Antarctica. ...

, in the

Graham Land Graham Land is the portion of the Antarctic Peninsula that lies north of a line joining Cape Jeremy and Cape Agassiz. This description of Graham Land is consistent with the 1964 agreement between the British Antarctic Place-names Committee ...

and

Palmer Land Palmer Land () is the portion of the Antarctic Peninsula, Antarctica that lies south of a line joining Cape Jeremy and Cape Agassiz. This application of Palmer Land is consistent with the 1964 agreement between the Advisory Committee on Antarctic N ...

regions of

Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole. ...

and may also be considered to extend across the continent.

Geology

Some geologists consider the Antarctandes a southernmost continuation of the

Andes Range The Andes ( ), Andes Mountains or Andean Mountain Range (; ) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is long and wide (widest between 18°S ...

System on

. According to this theory the Andes start at the border between

Colombia Colombia, officially the Republic of Colombia, is a country primarily located in South America with Insular region of Colombia, insular regions in North America. The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuel ...

and

Venezuela Venezuela, officially the Bolivarian Republic of Venezuela, is a country on the northern coast of South America, consisting of a continental landmass and many Federal Dependencies of Venezuela, islands and islets in the Caribbean Sea. It com ...

; run along western

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...

; submerge into the

Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...

to the east of

Tierra del Fuego Tierra del Fuego (, ; Spanish for "Land of Fire", rarely also Fireland in English) is an archipelago off the southernmost tip of the South America, South American mainland, across the Strait of Magellan. The archipelago consists of the main is ...

to form the underwater Scotia Arc mountain range; resurface periodically in the Shag Rocks,

South Georgia and the South Sandwich Islands South Georgia and the South Sandwich Islands (SGSSI) is a British Overseas Territory in the southern Atlantic Ocean. It is a remote and inhospitable collection of islands, consisting of South Georgia and a chain of smaller islands known as the ...

South Orkney Islands The South Orkney Islands are a group of List of Antarctic and sub-Antarctic islands, islands in the Southern Ocean, about north-east of the tip of the Antarctic Peninsula South Shetland Islands The South Shetland Islands are a group of List of Antarctic and subantarctic islands, Antarctic islands located in the Drake Passage with a total area of . They lie about north of the Antarctic Peninsula, and between southwest of the n ...

; and finally resurface on the northern

. Chile calls the peninsula ''Tierra de O'Higgins'', and Argentina ''Tierra de San Martín''. Antarctic Peninsula region relief location map

Geography

The highest mountain of the Peninsular Antarctandes is Mount Hope (3,239 m) in the Eternity Range in

.New satellite imagery reveals new highest Antarctic Peninsula Mountain

British Antarctic Survey The British Antarctic Survey (BAS) is the United Kingdom's national polar research institute. It has a dual purpose, to conduct polar science, enabling better understanding of list of global issues, global issues, and to provide an active prese ...

, 11 December 2017 To the southwest, the Antarctandes continue as the

Ellsworth Mountains The Ellsworth Mountains are the highest mountain ranges in Antarctica, forming a long and wide chain of mountains in a north to south configuration on the western margin of the Ronne Ice Shelf in Marie Byrd Land. They are bisected by Minneso ...

, the highest mountain range in Antarctica and much-covered by glaciers in

; then through the

Whitmore Mountains The Whitmore Mountains () are an isolated mountain range of the Transantarctic Mountains System, located in the Marie Byrd Land region of West Antarctica. They consist of three mountains and a cluster of nunataks extending over 15 miles. The grou ...

to the

Queen Maud Mountains The Queen Maud Mountains () are a major group of mountains, ranges and subordinate features of the Transantarctic Mountains, lying between the Beardmore Glacier, Beardmore and Reedy Glaciers and including the area from the head of the Ross Ice Sh ...

. From there, the Antarctandes follow the western coast of the

Ross Sea The Ross Sea is a deep bay of the Southern Ocean in Antarctica, between Victoria Land and Marie Byrd Land and within the Ross Embayment, and is the southernmost sea on Earth. It derives its name from the British explorer James Clark Ross who ...

to Cape Adare. The major transcontinental

Transantarctic Mountains The Transantarctic Mountains (abbreviated TAM) comprise a mountain range of uplifted rock (primarily sedimentary) in Antarctica which extends, with some interruptions, across the continent from Cape Adare in northern Victoria Land to Coats L ...

System shares the Cape Adare to Queen Maud ranges with the Antarctandes but then veers east along the eastern coast of the

Weddell Sea The Weddell Sea is part of the Southern Ocean and contains the Weddell Gyre. Its land boundaries are defined by the bay formed from the coasts of Coats Land and the Antarctic Peninsula. The easternmost point is Cape Norvegia at Princess Martha C ...

. To the southeast of the

, the

Antarctic Plateau The Antarctic Plateau, Polar Plateau or King Haakon VII Plateau is a large area of East Antarctica that extends over a diameter of about , and includes the region of the geographic South Pole and the Amundsen–Scott South Pole Station. Thi ...

extends to the

South Pole The South Pole, also known as the Geographic South Pole or Terrestrial South Pole, is the point in the Southern Hemisphere where the Earth's rotation, Earth's axis of rotation meets its surface. It is called the True South Pole to distinguish ...

. The Antarctandes thus form a serpentine arc, over 5,000 kilometres long, along the southern rim of the

Pacific The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is bounded by the cont ...

Ring of Fire The Ring of Fire (also known as the Pacific Ring of Fire, the Rim of Fire, the Girdle of Fire or the Circum-Pacific belt) is a tectonic belt of volcanoes and earthquakes. It is about long and up to about wide, and surrounds most of the Pa ...

. The Peninsular Antarctandes range is claimed by Argentina for

Argentine Antarctica Argentine Antarctica ( or ) is an area on Antarctica claimed by Argentina as part of its national territory. It consists of the Antarctic Peninsula and a triangular section extending to the South Pole, delimited by the 25th meridian west, 25 ...

, Chile for

Chilean Antarctic Territory The Chilean Antarctic Territory, or Chilean Antarctica (, ), is a part of West Antarctica and nearby islands claimed by Chile. It comprises the region south of 60th parallel south, 60°S latitude and between longitudes 53rd meridian west, 53°W a ...

, and the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

for the British Antarctic Territory. All these claims are frozen by Article 4 of the 1960s

Antarctic Treaty System The Antarctic Treaty and related agreements, collectively known as the Antarctic Treaty System (ATS), regulate international relations with respect to Antarctica, Earth's only continent without a native human population. It was the first arms ...

References

{{coord, 70, 25, S, 62, 40, W, type:mountain_region:AQ_dim:2000000, display=title Mountain ranges of Graham Land Mountain ranges of Palmer Land Antarctic Peninsula

Geology

Geography

See also

References