Geography of Argentina
Argentina is a country in southern South America, situated between the Andes in the west and the southern Atlantic Ocean in the east. It is bordered by Paraguay and Bolivia in the north, Brazil and Uruguay in the northeast and Chile in the west.
Argentina is the second largest country of South America after Brazil and the 8th largest country in the world. Its total area is approximately 2.7 million km². Argentina claims a section of Antarctica (Argentine Antarctica) but has agreed to suspend sovereignty disputes in the region as a signatory to the Antarctic Treaty. Argentina also asserts claims to several South Atlantic islands administered by the United Kingdom.
Rivers and Lakes
Major rivers in Argentina include the Pilcomayo, Paraguay, Bermejo, Colorado, Río Negro, Salado, Uruguay and the largest river, the Paraná. The latter two flow together before meeting the Atlantic Ocean, forming the estuary of the Río de la Plata. 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 in Argentina, many of them in Patagonia. Among these are lakes Argentino and Viedma in Santa Cruz, Nahuel Huapi in Río Negro and 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 those at Termas de Río Hondo with temperatures between 30°C and 65°C.
Provincies of Argentina
Regions
The country is traditionally divided into several major geographically distinct regions:
Pampas
The plains west and south from Buenos Aires. Called the Humid Pampa, they cover most of the provinces of Buenos Aires and Córdoba, and big portions of the provinces of Santa Fe and La Pampa. The western part of La Pampa and the province San Luis also have plains (the Dry Pampa), but they are drier and used mainly for grazing. The Sierra de Córdoba in the homonymous province (extending into San Luis), is the most important geographical feature of the pampas.
Gran Chaco
The Gran Chaco region in the north of the country is seasonal dry/wet, mainly cotton growing and livestock raising. It covers the provinces of Chaco and Formosa. It is dotted with subtropical forests, scrubland, and some wetlands, home to a large number of plant and animal species. The province of Santiago del Estero lies in the drier region of the Gran Chaco.
Mesopotamia
The land between the Paraná and Uruguay rivers is called Mesopotamia and it is shared by the provinces of Corrientes and Entre Ríos. It features flatland apt for grazing and plant growing, and the Iberá Wetlands in central Corrientes. Misiones province is more tropical and belongs within the Brazilian Highlands geographic feature. It features subtropical rainforests and the Iguazú Falls.
Patagonia
The steppes of Patagonia, in the provinces of Neuquén, Río Negro, Chubut and Santa Cruz, are of Tertiary origin. Most of the region is semiarid in the north to cold and arid in the far south, but forests grow in its western fringes which are dotted with several large lakes. Tierra del Fuego is cool and wet, moderated by oceanic influences. Northern Patagonia (roughly Río Negro south of the homonymous river, and Neuquén) can also be referred as the Comahue region .
Cuyo
West-central Argentina is dominated by the imposing Andes Mountains. To their east is the arid region known as Cuyo. Melting waters from high in the mountains form the backbone of irrigated lowland oasis, at the center of a rich fruit and wine growing region in Mendoza and San Juan provinces. Further north the region gets hotter and drier with more geographical accidents in La Rioja province.
NOA or Northwest
This region is the highest in average elevation. Several parallel mountain ranges, several of which have peaks higher than 20,000 feet, dominate the area. These ranges grow wider in geographic extent towards the north. They are cut by fertile river valleys, the most important being the Calchaquí Valleys in the provinces of Catamarca, Tucumán, and Salta. Farther north the province of Jujuy near Bolivia lies mainly within the Altiplano plateau of the Central Andes. The Tropic of Capricorn goes through the far north of the region.