page_title: Chile
section_title: Topography
hierarchical_section_title: Chile / Geography / Topography
caption_attribution_description: Majestic Ojos del Salado volcano
context_page_description: Chile, officially the Republic of Chile, is a country in western South America. It occupies a long, narrow strip of land between the Andes to the east and the Pacific Ocean to the west. Chile covers an area of 756,096 square kilometres and has a population of 17.5 million as of 2017. The capital and largest city is Santiago and the national language is Spanish.
  Chile borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far south. Chilean territory includes the Pacific islands of Juan Fernández, Isla Salas y Gómez, Desventuradas, and Easter Island in Oceania. Chile also claims about 1,250,000 square kilometres of Antarctica under the Chilean Antarctic Territory.
  Spain conquered and colonized the region in the mid-16th century, replacing Inca rule, but failing to conquer the independent Mapuche who inhabited what is now south-central Chile. After declaring independence from Spain in 1818, Chile emerged in the 1830s as a relatively stable authoritarian republic.
context_section_description: Chile is located along a highly seismic and volcanic zone, part of the Pacific Ring of Fire, due to the subduction of the Nazca and Antarctic plates in the South American plate.
  Late Paleozoic, 251 million years ago, Chile belonged to the continental block called Gondwana. It was just a depression accumulated marine sediments began to rise at the end of the Mesozoic, 66 million years ago, due to the collision between the Nazca and South American plates, resulting in the Andes. The territory would be shaped by millions of years due to the folding of the rocks, forming the current relief.
  The Chilean relief consists of the central depression, which crosses the country longitudinally, flanked by two mountain ranges that make up about 80% of the territory: the Andes mountains to the east-natural border with Bolivia and Argentina in the region of Atacama and the Coastal Range west-minor height from the Andes. Chile's highest peak is the Nevado Ojos del Salado, at 6891.3 m, which is also the highest volcano in the world. The highest point of the Coastal Range is Vicuña Mackenna, at 3114 meters, located in the Sierra Vicuña Mackenna, the south of Antofagasta. Among the coastal mountains and the Pacific is a series of coastal plains, of variable length, which allow the settlement of coastal towns and big ports. Some areas of the plains territories encompass territory east of the Andes, and the Patagonian steppes and Magellan, or are high plateaus surrounded by high mountain ranges, such as the Altiplano or Puna de Atacama.
  The Far North is the area between the northern boundary of the country and the parallel 26° S, covering the first three regions. It is characterized by the presence of the Atacama desert, the most arid in the world. The desert is fragmented by streams that originate in the area known as the pampas Tamarugal. The Andes, split in two and whose eastern arm runs Bolivia, has a high altitude and volcanic activity, which has allowed the formation of the Andean altiplano and salt structures as the Salar de Atacama, due to the gradual accumulation of sediments over time.
  To the south is the Norte Chico, extending to the Aconcagua river. Los Andes begin to decrease its altitude to the south and closer to the coast, reaching 90 km away at the height of Illapel, the narrowest part of the Chilean territory. The two mountain ranges intersect, virtually eliminating the intermediate depression. The existence of rivers flowing through the territory allows the formation of transverse valleys, where agriculture has developed strongly in recent times, while the coastal plains begin to expand.
  The Central area is the most populated region of the country. The coastal plains are wide and allow the establishment of cities and ports along the Pacific. The Andes maintains altitudes above 6000m but descend slowly starts approaching the 4000 meters on average. The intermediate depression reappears becoming a fertile valley that allows agricultural development and human settlement, due to sediment accumulation. To the south, the Cordillera de la Costa reappears in the range of Nahuelbuta while glacial sediments originate a series of lakes in the area of La Frontera.
  Patagonia extends from within Reloncavi, at the height of parallel 41°S, to the south. During the last glaciation, this area was covered by ice that strongly eroded Chilean relief structures. As a result, the intermediate depression sinks in the sea, while the coastal mountains rise to a series of archipelagos, such as Chiloé and the Chonos, disappearing in Taitao peninsula, in the parallel 47°S. The Andes mountain range loses height and erosion caused by the action of glaciers has caused fjords.
  East of the Andes, on the continent, or north of it, on the island of Tierra del Fuego are located relatively flat plains, which in the Strait of Magellan cover large areas.
  The Andes, as he had done previously Cordillera de la Costa, begins to break in the ocean causing a myriad of islands and islets and disappear into it, sinking and reappearing in the Southern Antilles arc and the
caption: View of Ojos del Salado from the Chilean side.
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