Portal:Andes
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The Andes Portal
The Andes (/ˈændiːz/ AN-deez), Andes Mountains or Andean Mountain Range (Spanish: Cordillera de los Andes; Quechua: Anti) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is 8,900 km (5,530 mi) long, 200 to 700 km (124 to 435 mi) wide (widest between 18°S and 20°S latitude), and has an average height of about 4,000 m (13,123 ft). The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile and Argentina.
Along their length, the Andes are split into several ranges, separated by intermediate depressions. The Andes are the location of several high plateaus—some of which host major cities such as Quito, Bogotá, Cali, Arequipa, Medellín, Bucaramanga, Sucre, Mérida, El Alto and La Paz. The Altiplano Plateau is the world's second-highest after the Tibetan Plateau. These ranges are in turn grouped into three major divisions based on climate: the Tropical Andes, the Dry Andes, and the Wet Andes.
The Andes Mountains are the highest mountain range outside Asia. The highest mountain outside Asia, Argentina's Aconcagua, rises to an elevation of about 6,961 m (22,838 ft) above sea level. The peak of Chimborazo in the Ecuadorian Andes is farther from the Earth's center than any other location on the Earth's surface, due to the equatorial bulge resulting from the Earth's rotation. The world's highest volcanoes are in the Andes, including Ojos del Salado on the Chile-Argentina border, which rises to 6,893 m (22,615 ft). (Full article...)
Selected articles
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Image 1
Mount Tarn is a small mountain located on the southernmost part of the Strait of Magellan, in Brunswick Peninsula, about 70 km south of Punta Arenas, Chile. It is in the southern extreme of continental Chile very close to Cape Froward, surrounded by historic places such as Fort Bulnes and Puerto del Hambre (Port Famine).
From the summit it is possible to see the Strait of Magellan, Dawson and Tierra del Fuego islands, and many other smaller ones; the Darwin Mountain Range, Mount Sarmiento, and most of the Brunswick Peninsula. (Full article...) -
Image 2
The Andean condor (Vultur gryphus) is a South American New World vulture and is the only member of the genus Vultur. It is found in the Andes mountains and adjacent Pacific coasts of western South America. With a maximum wingspan of 3.3 m (10 ft 10 in) and weight of 15 kg (33 lb), the Andean condor is one of the largest flying birds in the world, and is generally considered to be the largest bird of prey in the world.
It is a large black vulture with a ruff of white feathers surrounding the base of the neck and, especially in the male, large white patches on the wings. The head and neck are nearly featherless, and are a dull red color, which may flush and therefore change color in response to the bird's emotional state. In the male, there is a wattle on the neck and a large, dark red comb or caruncle on the crown of the head. The female condor is smaller than the male, an exception to the usual sexual dimorphism seen in birds of prey. (Full article...) -
Image 3
The Andean Volcanic Belt is a major volcanic belt along the Andean cordillera in Argentina, Bolivia, Chile, Colombia, Ecuador, and Peru. It is formed as a result of subduction of the Nazca Plate and Antarctic Plate underneath the South American Plate. The belt is subdivided into four main volcanic zones which are separated by volcanic gaps. The volcanoes of the belt are diverse in terms of activity style, products, and morphology. While some differences can be explained by which volcanic zone a volcano belongs to, there are significant differences within volcanic zones and even between neighboring volcanoes. Despite being a type location for calc-alkalic and subduction volcanism, the Andean Volcanic Belt has a broad range of volcano-tectonic settings, as it has rift systems and extensional zones, transpressional faults, subduction of mid-ocean ridges and seamount chains as well as a large range of crustal thicknesses and magma ascent paths and different amounts of crustal assimilations.
Romeral in Colombia is the northernmost active member of the Andean Volcanic Belt. South of latitude 49° S within the Austral Volcanic Zone volcanic activity decreases with the southernmost volcano Fueguino in Tierra del Fuego archipelago. (Full article...) -
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Cerro del Nacimiento is an Andean volcano of the Cordillera de la Ramada range, in the Catamarca Province of Argentina. Its summit is 6,436 metres (21,115 ft) above sea level. (Full article...) -
Image 5
Imbabura is an inactive stratovolcano in northern Ecuador. Although it has not erupted for about 7,500 years, it is not thought to be extinct. Imbabura is intermittently capped with snow and has no permanent glaciers.
Covered in volcanic ash, the slopes of Imbabura are especially fertile. In addition to cloud forests, which are found across the northern Andes to an altitude of 3000 m, the land around Imbabura is extensively farmed. Maize, sugarcane, and beans are all staple crops of the region. Cattle are also an important commodity, and much of the land on and around Imbabura, especially the high-altitude meadows above the tree line, is used for grazing. (Full article...) -
Image 6
The Tropical Andes is northern of the three climate-delineated parts of the Andes, the others being the Dry Andes and the Wet Andes. The Tropical Andes' area spans 1,542,644 km2 (595,618 sq mi). (Full article...) -
Image 7
Pico Mucuñuque is a mountain in the Andes of Venezuela. It has a height of 4,609 metres. (Full article...) -
Image 8
Ritacuba Blanco is the highest peak of Cordillera Oriental, in the Andes Mountains of Colombia. It's also named Ritak'uwa, an ancient name from the U'wa indigenous people that live in the lowlands of the National Park Sierra Nevada del Cocuy y Güicán, where the Ritacuba Blanco is located.
The summit is accessible from the west via the town of El Cocuy, the village of Güicán, and the hamlet of Las Cabañas. The hike is fairly easy, but the weather is not reliable, and a glacier must be crossed.
Because of global warming, its glacier is melting at very high rates, backing down 25 linear mts per year; the same is happening at amazing speeds to all other snow-covered tropical mountains in Colombia. In 1950, Ritacuba Blanco's glacier extended down to 4,100 metres (13,500 ft) above sea level; in January 2007 its lowest point was at 4,500 metres (14,800 ft) above sea level. If this melting rate continues, the glacier is expected to disappear before 2055. (Full article...) -
Image 9
Cayambe or Volcán Cayambe is a volcano in Ecuador, in the Cordillera Central, a range of the Ecuadorian Andes. It is located in Pichincha Province, some 70 km (43 mi) northeast of Quito. It is the third-highest mountain in Ecuador, at an elevation of 5,790 m (18,996 ft) above sea level.
Cayambe, which has a permanent snow cap, is a Holocene compound volcano which last erupted in March 1786. At 4,690 metres (15,387 ft), its south slope is the highest point in the world crossed by the Equator, and the only point on the Equator with snow cover. The ice cap covers an area of about 22 km2 (8 sq mi) and there are glaciers on the eastern flank descending to about 4,400 m (14,400 ft), whereas those on the drier western flank reach about 4,700 m (15,400 ft). The volcano and most of its slopes are within the Cayambe Coca Ecological Reserve. (Full article...) -
Image 10
Parinacota (in Hispanicized spelling), Parina Quta or Parinaquta is a dormant stratovolcano on the border of Bolivia and Chile. Together with Pomerape it forms the Nevados de Payachata volcanic chain. Part of the Central Volcanic Zone of the Andes, its summit reaches an elevation of 6,380 metres (20,930 ft) above sea level. The symmetrical cone is capped by a summit crater with widths of 1 kilometre (0.62 mi) or 1,000 metres (3,300 ft). Farther down on the southern slopes lie three parasitic centres known as the Ajata cones. These cones have generated lava flows. The volcano overlies a platform formed by lava domes and andesitic lava flows.
The volcano started growing during the Pleistocene and formed a large cone. At some point between the Pleistocene and the Holocene, the western flank of the volcano collapsed, generating a giant landslide that spread west and formed a large, hummocky landslide deposit. The avalanche crossed and dammed a previously existing drainage, impounding or enlarging Lake Chungará; numerous other lakes now forming the headwaters of the Rio Lauca sprang up within the deposit. Volcanic activity rebuilt the cone after the collapse, cancelling out the collapse scar. (Full article...) -
Image 11
The Pico Piedras Blancas (also known as Misamán), at 4,737 metres (15,541 ft), is the highest mountain of the Sierra de la Culata range in the Mérida State, and the fifth-highest mountain in Venezuela. Its name, meaning "White Stones", is of uncertain origin, since the massif is predominantly grey in color. Pico Piedras Blancas lacks glaciers; however, seasonal snowfalls may briefly cover its flanks. From its summit and under clear conditions, Lake Maracaibo can be seen. One of the accesses to reach the base of the mountain, is through the Mifafí Condor Reserve, which hosts some specimens of this andean bird. (Full article...) -
Image 12
Illampu is the fourth highest mountain in Bolivia. It is located in the northern section of the Cordillera Real, part of the Andes, east of Lake Titicaca. It lies just north of the slightly higher Janq'u Uma, near the town of Sorata. Laguna Glaciar, located in the Illampu-Janq'u Uma massif, is the 17th highest lake in the world.
Despite being lower than Janq'u Uma, Illampu has a steeper peak, with more local relief, and is a somewhat harder climb. In fact it has "the hardest normal route on any of the 6,000 metre peaks in Bolivia." The easiest route, by the Southwest Ridge, is rated AD (Fairly Difficult), with snow slopes up to 65 degrees. It is accessed from a high camp on the north side of the massif. The peak was first climbed on June 7, 1928 via this route, by Hans Pfann, Alfred Horeschowsky, Hugo Hörtnagel (Germans) and Erwin Hein (Austrian). Other routes include the "German Route" on the southwest face and the South Face route, both approached from the west side of the massif. (Full article...) -
Image 13
Aconcagua (Spanish pronunciation: [akoŋˈkaɣwa]) is a mountain in the Principal Cordillera of the Andes mountain range, in Mendoza Province, Argentina. It is the highest mountain in the Americas, the highest outside Asia, and the highest in both the Western Hemisphere and the Southern Hemisphere with a summit elevation of 6,961 metres (22,838 ft). It lies 112 kilometres (70 miles) northwest of the provincial capital, the city of Mendoza, about five kilometres (three miles) from San Juan Province, and 15 km (9 mi) from Argentina's border with Chile. The mountain is one of the Seven Summits of the seven continents.
Aconcagua is bounded by the Valle de las Vacas to the north and east and the Valle de los Horcones Inferior to the west and south. The mountain and its surroundings are part of the Aconcagua Provincial Park. The mountain has a number of glaciers. The largest glacier is the Ventisquero Horcones Inferior at about 10 km (6 mi) long, which descends from the south face to about 3,600 m (11,800 ft) in elevation near the Confluencia camp.
Two other large glacier systems are the Ventisquero de las Vacas Sur and Glaciar Este/Ventisquero Relinchos system at about 5 km (3 mi) long. The best known is the northeastern or Polish Glacier, as it is a common route of ascent. (Full article...) -
Image 14
Galeras (Urcunina among the 16th-century indigenous people) is an Andean stratovolcano in the Colombian department of Nariño, near the departmental capital Pasto. Its summit rises 4,276 metres (14,029 ft) above sea level. It has erupted frequently since the Spanish conquest, with its first historical eruption being recorded on December 7, 1580. A 1993 eruption killed nine people, including six scientists who had descended into the volcano's crater to sample gases and take gravity measurements in an attempt to be able to predict future eruptions. It is currently the most active volcano in Colombia. (Full article...) -
Image 15
Pico El León is a mountain in the Andes of Venezuela. It has a height of 4740 metres. (Full article...) -
Image 16Touching the Void is a 2003 docudrama survival film directed by Kevin Macdonald and starring Brendan Mackey, Nicholas Aaron, and Ollie Ryall. The plot concerns Joe Simpson and Simon Yates' near-fatal descent after making the first successful ascent of the West Face of Siula Grande in the Cordillera Huayhuash in the Peruvian Andes, in 1985. It is based on Simpson's 1988 book of the same name.
Critically acclaimed, Touching the Void was listed in PBS's "100 Greatest Documentaries of All Time". The Guardian described it as "the most successful documentary in British cinema history". (Full article...) -
Image 17
The Sierra de La Culata is a mountain range in the largest massif in Venezuela, the Cordillera de Mérida, which in turn is part of the northern extent of the Cordillera de los Andes (Andes Mountains). The Sierra la Culata includes some of the highest peaks in Venezuela, such as Pico Piedras Blancas, Pico Pan de Azúcar, and Collado del Cóndor.
It is located between the states of Mérida and Trujillo. Most of the lagoons are a result of the Mérida glaciation. (Full article...) -
Image 18
Cerro Mercedario is the highest peak of the Cordillera de la Ramada range and the eighth-highest mountain of the Andes. It is located 100 km to the north of Aconcagua, in the Argentine province of San Juan. (Full article...) -
Image 19Misti is a dormant volcano located in the Andes mountains in southern Peru, rising above Peru's second-largest city, Arequipa. It is a conical volcano with two nested summit craters, the inner one of which contains a volcanic plug or lava dome with active fumaroles. The summit of the volcano lies on the margin of the outer crater and is 5,822 metres (19,101 ft) above sea level. Snow falls on the summit during the wet season, but does not persist; there are no glaciers. The upper slopes of the volcano are barren, while the lower slopes are covered by bushland.
The volcano developed over four different stages. During each stage, lava flows and lava domes built up a mountain, whose summit then collapsed to form a caldera. The volcano is part of a volcano group with Chachani to the northwest and Pichu Pichu to the southeast, and developed on top of a basement formed by numerous Miocene-Pliocene ignimbrites and volcano-derived debris. Numerous intense explosive eruptions took place during the last 50,000 years and covered the surrounding terrain with tephra. The last two significant eruptions were 2,000 years ago and in 1440–1470 AD; since then, phases of increased fumarolic activity have sometimes been mistaken for eruptions. (Full article...) -
Image 20
Siula Grande is a mountain in the Huayhuash mountain range in the Peruvian Andes. It is 6,344 metres (20,814 ft) high and has a subpeak, Siula Chico, 6,260 m (20,540 ft) high. (Full article...) -
Image 21Pico El Toro is a mountain in the Andes of Venezuela. It has a height of 4755 metres. (Full article...)
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Image 22
Rondoy (possibly from Quechua runtuy: "to hail" or "to lay an egg") is a 5,870-metre-high (19,259 ft) mountain in the north of the Huayhuash mountain range in the Andes of Peru. It is located in the Ancash Region, Bolognesi Province, Pacllón District, and in the Huánuco Region, Lauricocha Province, Queropalca District. Rondoy lies north of Yerupajá and Jirishanca and southwest of Lake Mitococha. (Full article...) -
Image 23
Cerro Escorial is a stratovolcano at the border of Argentina and Chile. It is part of the Corrida de Cori volcanic group and its youngest member. A well-preserved 1-kilometre-wide (0.6 mi) crater forms its summit area. Lava flows are found on the Chilean and smaller ones on the Argentinian side, the former reaching as far as 3–4 kilometres (1.9–2.5 mi) from the volcano. One of these is dated 342,000 years ago by argon-argon dating.
Off the western coast of South America, the Nazca Plate subducts beneath the South America Plate. This process has given rise to the Andes mountain chain and the Altiplano-Puna high plateau, which formed through shortening of the crust that lasted until 1 million years ago. Cerro Escorial rises from the Puna, which is dissected at Cerro Escorial by the Archibarca lineament; it is a strike-slip fault that has facilitated the ascent of magma. (Full article...) -
Image 24
The Sierra Nevada National Park (SNNP) is an important National Park of Venezuela located between Mérida and Barinas states in the west of the country. It was created on May 2, 1952, by decree of President Germán Suárez Flamerich, in order to protect the Sierra Nevada de Mérida in the Andes.
It was the second national park decreed, after Henri Pittier National Park, which became the first Venezuelan national park 15 years earlier. (Full article...) -
Image 25
Pico La Concha is a mountain in the Andes of Venezuela. It has a height of 4,922 metres. (Full article...)
Did you know...
- ... that the 1930s Polish Andean expeditions have been credited with several first ascents and the tracing of a new route to the summit of Aconcagua, the Andes' highest peak?
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General images
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Image 1Simplified sketch of the present-situation along most of the Andes (from Andean orogeny)
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Image 3Central Andes (from Andes)
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Image 7Bolivian Andes (from Andes)
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Image 8Map of a north-south sea-parallel pattern of rock ages in western Colombia. This pattern is a result of the Andean orogeny. (from Andean orogeny)
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Image 9Paleogeography of the Late Cretaceous South America. Areas subject to the Andean orogeny are shown in light grey while the stable cratons are shown as grey squares. The sedimentary formations of Los Alamitos and La Colonia that formed in the Late Cretaceous are indicated. (from Andean orogeny)
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Image 11A male Andean cock-of-the-rock, a species found in humid Andean forests and the national bird of Peru (from Andes)
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Image 13Aerial view of Valle Carbajal in the Tierra del Fuego. The Andes range is about 200 km (124 mi) wide throughout its length, except in the Bolivian flexure where it is about 640 kilometres (398 mi) wide. (from Andes)
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Image 14Peruvian farmers sowing maize and beans (from Andes)
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Image 17Mashua tubers (from Andean agriculture)
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Image 19Pico Humboldt at sunset (from Andes)
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Image 21The seaward tilting of the sedimentary strata of Salto del Fraile Formation in Peru was caused by the Andean orogeny. (from Andean orogeny)
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Image 22Pacha Mama Ceremony (from Andean agriculture)
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Image 25Syncline next to Nordenskjöld Lake in Torres del Paine National Park. The syncline formed during the Andean orogeny. (from Andean orogeny)
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Image 26Irrigating land in the Peruvian Andes (from Andes)
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Image 27Topographic map of the Andes by the NASA. The southern and northern ends of the Andes are not shown. The Bolivian Orocline is visible as a bend in the coastline and the Andes lower half of the map. (from Andean orogeny)
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Image 30Ulluco: Common crop of the Andean region (from Andean agriculture)
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