Argentina, officially the Argentine Republic (Spanish: República Argentina), is the second largest country in South America, constituted as a federation of 23 provinces and an autonomous city, Buenos Aires. It is the eighth-largest country in the world by land area and the largest among Spanish-speaking nations, though Mexico, Colombia and Spain are more populous.
Argentina’s continental area is between the Andes mountain range in the west and the Atlantic Ocean in the east. It borders Paraguay and Bolivia to the north, Brazil and Uruguay to the northeast, and Chile to the west and south. Argentine claims over Antarctica, as well as overlapping claims made by Chile and the United Kingdom, are suspended by the Antarctic Treaty of 1961. Argentina also claims the Falkland Islands (Spanish: Islas Malvinas) and South Georgia and the South Sandwich Islands, which are administered by the United Kingdom as British Overseas Territories.
Argentina is a founding member of both the United Nations, Mercosur and the Union of South American Nations. Argentina is one of the G-20 major economies.
The total surface area (excluding the Antarctic claim) is 2,766,891.2 km2 (1,068,302.7 sq mi), of which 30,200 km2 (11,700 sq mi) (1.1%) is water. Argentina is about 3,900 km (2,400 mi) long from north to south, and 1,400 km (870 mi) from east to west (maximum values). There are four major regions: the fertile central plains of the Pampas, source of Argentina’s agricultural wealth; the flat to rolling, oil-rich southern plateau of Patagonia including Tierra del Fuego; the subtropical northern flats of the Gran Chaco, and the rugged Andes mountain range along the western border with Chile.
The highest point above sea level is in Mendoza province at Cerro Aconcagua (6,962 m (22,841 ft)), also the highest point in the Southern and Western Hemisphere. The lowest point is Laguna del Carbón in Santa Cruz province, -105 m (−344 ft) below sea level. This is also the lowest point in South America. The geographic center of the country is in south-central La Pampa province. The easternmost continental point is northeast of Bernardo de Irigoyen, Misiones,(26°15′S 53°38′W / 26.25°S 53.633°W / -26.25; -53.633 (Argentina’s easternmost continental point)) the westernmost in the Mariano Moreno Range in Santa Cruz province.(49°33′S 73°35′W / 49.55°S 73.583°W / -49.55; -73.583 (Argentina’s westernmost point)) The northernmost point is at the confluence of the Grande de San Juan and Mojinete rivers in Jujuy province,(21°46′S 66°13′W / 21.767°S 66.217°W / -21.767; -66.217 (Argentina’s northernmost point)) and the southernmost is Cape San Pío in Tierra del Fuego. (55°03′S 66°31′W / 55.05°S 66.517°W / -55.05; -66.517 (Argentina’s southernmost point))[35]
The major rivers are the Paraná (the largest), the Pilcomayo, Paraguay, Bermejo, Colorado, Río Negro, Salado and the Uruguay. The Paraná and the Uruguay join to form the Río de la Plata estuary, before reaching the Atlantic. Regionally important rivers are the Atuel and Mendoza in the homonymous province, the Chubut in Patagonia, the Río Grande in Jujuy and the San Francisco River in Salta.
There are several large lakes including Argentino and Viedma in Santa Cruz, Nahuel Huapi between Río Negro and Neuquén, Fagnano in Tierra del Fuego, and Colhué Huapi and Musters in Chubut. Lake Buenos Aires and O’Higgins/San Martín Lake are shared with Chile. Mar Chiquita, Córdoba, is the largest salt water lake in the country. There are numerous reservoirs created by dams. Argentina features various hot springs, such as Termas de Río Hondo with temperatures between 65°C and 89°C.[36]
The largest oil spill in fresh water was caused by a Shell Petroleum tanker in the Río de la Plata, off Magdalena, on January 15, 1999, polluting the environment, drinking water, and local wildlife.
The 4,665 km (2,899 mi) long Atlantic coast has been a popular local vacation area for over a century, and varies between areas of sand dunes and cliffs. The continental platform is unusually wide; this shallow area of the Atlantic is called the Argentine Sea. The waters are rich in fisheries and possibly hold important hydrocarbon energy resources. The two major ocean currents affecting the coast are the warm Brazil Current and the cold Falkland Current. Because of the unevenness of the coastal landmass, the two currents alternate in their influence on climate and do not allow temperatures to fall evenly with higher latitude. The southern coast of Tierra del Fuego forms the north shore of the Drake Passage.
