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 and 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 South to North through seven South American countries: Argentina, Chile, Bolivia, Peru, Ecuador, Colombia, and Venezuela.
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 are the highest mountain range outside of Asia. The range's highest peak, 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
Jirishanca is a 6,094-metre-high (19,993 ft) mountain in the Huayhuash mountain range in west central Peru, part of the Andes. Other sources cite a height of 6,125 metres (20,095 ft). It is the 10th highest peak in Peru and the third in the Huayhuash range (after Yerupajá and Siula Grande). Jirishanca translates as "hummingbird bill peak". (Full article...) -
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Orestias is a genus of pupfish. Older systematics classified them into the own family Orestiidae. They are found in lakes, rivers and springs in the Andean highlands of South America, and several species are considered threatened. They are egg-laying fish that feed on small animals and plant matter. The largest species can reach a total length of 27 cm (10.6 in), but most remain far smaller. Their most characteristic feature is the absence of the ventral fin, although this is shared by a few other pupfish. Despite their moderate to small size, they are important to local fisheries and a few species are farmed.
Several species are locally and colloquially known as carache. The name of the genus is a reference to Orestes, a Greek mythological character who Valenciennes described as the "nymph of the mountains". (Full article...) -
Image 3
The Andean cock-of-the-rock (Rupicola peruvianus), also known as tunki (Quechua), is a large passerine bird of the cotinga family native to Andean cloud forests in South America. It is the national bird of Peru. It has four subspecies and its closest relative is the Guianan cock-of-the-rock.
The Andean cock-of-the-rock exhibits marked sexual dimorphism; the male has a large disk-like crest and scarlet or brilliant orange plumage, while the female is significantly darker and browner. Gatherings of males compete for breeding females with each male displaying his colourful plumage, bobbing and hopping, and making a variety of calls. After mating, the female makes a nest under a rocky overhang, incubates the eggs, and rears the young by herself. (Full article...) -
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Coropuna is a dormant compound volcano located in the Andes mountains of southeast-central Peru. The upper reaches of Coropuna consist of several perennially snowbound conical summits, lending it the name Nevado Coropuna in Spanish. The complex extends over an area of 240 square kilometres (93 sq mi) and its highest summit reaches an altitude of 6,377 metres (20,922 ft) above sea level. This makes the Coropuna complex the third-highest of Peru. Its thick ice cap is the most extensive in Earth's tropical zone, with several outlet glaciers stretching out to lower altitudes. Below an elevation of 5,000 metres (16,000 ft), there are various vegetation belts which include trees, peat bogs, grasses and also agricultural areas and pastures.
The Coropuna complex consists of several stratovolcanoes. These are composed chiefly of ignimbrites and lava flows on a basement formed by Middle Miocene ignimbrites and lava flows. The Coropuna complex has been active for at least five million years, with the bulk of the current cone having been formed during the Quaternary. Coropuna has had two or three Holocene eruptions 2,100 ± 200 and either 1,100 ± 100 or 700 ± 200 years ago which generated lava flows, plus an additional eruption which may have taken place some 6,000 years ago. Current activity occurs exclusively in the form of hot springs. (Full article...) -
Image 5
Ancohuma or Janq'u Uma (Aymara janq'u white, uma water, "white water", also spelled Janq'uma, other spellings, Jankho Uma, Jankhouma) is the third highest mountain in Bolivia (after Sajama and Illimani). It is located in the northern section of the Cordillera Real, part of the Andes, east of Lake Titicaca. It lies just south of the slightly lower Illampu, near the town of Sorata.
Despite being higher than Illampu, Ancohuma is a gentler peak, with less local relief, and it is a somewhat easier climb. The peak was first climbed in 1919, by Rudolf Dienst and Adolf Schulze. Their route, still the easiest, climbs the southwest face, and is rated PD (not very difficult). Other routes exist on the northwest ridge and the west face. Depending on the route desired, the mountain is approached either from the west or from the northeast; each approach requires two to three days from Sorata. (Full article...) -
Image 6Irruputuncu is a volcano in the commune of Pica, Tamarugal Province, Tarapacá Region, Chile, as well as San Pedro de Quemes Municipality, Nor Lípez Province, Potosí Department, Bolivia. The mountain's summit is 5,163 m (16,939 ft) high and has two summit craters—the southernmost 200 m (660 ft)-wide one has active fumaroles. The volcano also features lava flows, block and ash flows and several lava domes. The volcano is part of the Andean Central Volcanic Zone (CVZ).
The volcano has been active during the Pleistocene and Holocene, with major eruptions occurring 258.2 ± 48.8 ka ago, between 55.9 ka and 140 ka ago and 1570 ± 900 BP (380 ± 900 AD), which were accompanied by the formation of ignimbrites. Historical volcanic activity is less clear; an eruption in 1989 is considered unconfirmed. Plumes linked to phreatomagmatic eruptive activity were observed on 26 November 1995 and 1 September 2003. Seismic activity is also observed on Irruputuncu, and ongoing fumarolic activity releasing 21–50 t/d (0.24–0.57 long ton/ks) of sulfur dioxide has left sulfur deposits in the active crater. (Full article...) -
Image 7
Chimborazo (Spanish pronunciation: [tʃimboˈɾaso] ⓘ) is a stratovolcano situated in Ecuador in the Cordillera Occidental range of the Andes. Its last known eruption is believed to have occurred around AD 550. Although not the tallest mountain in the Andes or on Earth relative to sea level, its summit is the farthest point on Earth's surface from the Earth's center due to its location along the planet's equatorial bulge. Chimborazo's height from sea level is 6,263 m (20,548 ft), well below that of Mount Everest at 8,849 m (29,031 ft).
Chimborazo is the highest mountain in Ecuador and the 39th-highest peak in the entire Andes. It is a popular destination for mountaineering due to its challenging climbing routes, which involve traversing snow, ice, and rocky terrain. (Full article...) -
Image 8Misti 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 9
Telmatobius culeus, commonly known as the Titicaca water frog or Lake Titicaca frog, is a medium-large to very large and endangered species of frog in the family Telmatobiidae. It is entirely aquatic and found only in the Lake Titicaca basin, including rivers that flow into it and smaller connected lakes like Arapa, Lagunillas and Saracocha, in the Andean highlands of Bolivia and Peru. In reference to its excessive amounts of skin, it is sometimes jokingly referred to as the Titicaca scrotum frog.
It is closely related to the more widespread and semiaquatic marbled water frog (T. marmoratus), which also occurs in shallow, coastal parts of Lake Titicaca, but lacks the excessive skin and it is generally smaller (although overlapping in size with some forms of the Titicaca water frog). (Full article...) -
Image 10
Pico El León is a mountain in the Andes of Venezuela. It has a height of 4740 metres. (Full article...) -
Image 11
The Cordillera Paine is a mountain group in Torres del Paine National Park in Chilean Patagonia. The cordillera is located 280 km (170 mi) north of Punta Arenas, and about 1,960 km (1,220 mi) south of the Chilean capital Santiago. It belongs to the Commune of Torres del Paine in Última Esperanza Province of Magallanes and Antártica Chilena Region. No accurate surveys have been published, and published elevations have been claimed to be seriously inflated, so most of the elevations given on this page are approximate. Paine means "blue" in the native Tehuelche (Aonikenk) language and is pronounced PIE-nay. (Full article...) -
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Artesonraju is a pyramidal mountain peak located near the city of Caraz in the Cordillera Blanca mountain range in the Peruvian Andes. It is located at the Peruvian province of Huaylas and its slopes are within two cities: Santa Cruz and Caraz. Its summit has an elevation of 6,025 metres (19,767 ft) (or 5,999 metres (19,682 ft) according to the IGN-Peru map). It is one of many prominent peaks (2772 metres) located within the boundaries of Peru's Huascarán National Park.
Artesonraju has two distinguished climbing routes. Due to their difficulties, Artesonraju is seldom successfully climbed in comparison to other well known mountains in the Cordillera Blanca. This mountain serves as the inspiration for the newer Paramount Pictures production logo. (Full article...) -
Image 13
Cotopaxi (Spanish pronunciation: [kotoˈpaksi]) is an active stratovolcano in the Andes Mountains, located near Latacunga city of Cotopaxi Province, about 50 km (31 mi) south of Quito, and 31 km (19 mi) northeast of the city of Latacunga, Ecuador. It is the second highest summit in Ecuador (after Chimborazo), reaching a height of 5,897 m (19,347 ft). Cotopaxi is among the highest active volcanoes in the world.
Cotopaxi is known to have erupted 87 times, resulting in the creation of numerous valleys formed by lahars (mudflows) around the volcano. An ongoing eruption began on 21 October 2022. (Full article...) -
Image 14Paquni (Aymara paqu a kind of edible herb, -ni a suffix, "the one with the paqu herbs", Hispanicized spelling Pacuni) is a 4,838-metre-high (15,873 ft) mountain in the Potosí Department of Bolivia. It is located in the Antonio Quijarro Province, Tomave Municipality, northeast of the Jatun Mundo Quri Warani volcano. (Full article...)
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Image 15
The Nevado del Quindío, also known as Volcán Paramillo del Quindío or simply Paramillo del Quindío, is an inactive volcano located in the Central Cordillera of the Andes in central Colombia. The summit marks the tripoint of the departments of Risaralda, Tolima, and Quindío, and is the highest point of the latter. The mountain is the fourth highest peak in Los Nevados National Natural Park among those with a topographic prominence exceeding 300 meters. There are no historical records of any eruption. The andesitic volcano is located on top of the Palestina Fault.
The mountain formerly had glaciers, which disappeared in the second half of the 20th century due to changing climatic conditions associated with global warming. Presently there is no permanent ice, only intermittent snow. The mountain's alternative designation as "paramillo" (like paramo, a high-elevation area of sparse vegetation exposed to wind, rain, and cold) reflects this new reality, whereas the term "nevado" inaccurately implies continuous snow cover. (Full article...) -
Image 16
Monte Pissis is an extinct volcano on the border of the La Rioja and Catamarca provinces in Argentina, 25 km (16 mi) to the east of the Chilean border and about 550 km (340 mi) north of Aconcagua. The mountain is the third-highest in the Western Hemisphere.
Monte Pissis is named after Pedro José Amadeo Pissis, a French geologist who worked for the Chilean government.
Due to its location in the Atacama Desert, the mountain has very dry conditions but features an extensive glacier, with crevasses, which is unique in the region. The peak is the highest summit on Earth without a permanent glacier. (Full article...) -
Image 17
Illimani (Aymara and Spanish pronunciation: [iʎiˈmani]) is the highest mountain in the Cordillera Real (part of the Cordillera Oriental, a subrange of the Andes) of western Bolivia. It lies near the cities of El Alto and La Paz at the eastern edge of the Altiplano. It is the second highest peak in Bolivia, after Nevado Sajama, and the eighteenth highest peak in South America. The snow line lies at about 4,570 metres (15,000 ft) above sea level, and glaciers are found on the northern face at 4,982 m (16,350 ft). The mountain has four main peaks; the highest is the south summit, Nevado Illimani, which is a popular ascent for mountain climbers.
Geologically, Illimani is composed primarily of granodiorite, intruded during the Cenozoic era into the sedimentary rock, which forms the bulk of the Cordillera Real. (Full article...) -
Image 18
Pico El Águila or Collado del Cóndor is the milestone that stands at the highest elevation on the Venezuelan Transandean Highway (a branch of the Pan-American Highway) in the Cordillera de Mérida of Venezuela. Nearby stands a monument, sculpted by a Colombian artist, Marcos León Mariño, depicting a condor, commemorating an event in the campaign of El Libertador, Simón Bolivar. It is located in the state of Mérida and has an altitude of 4,118 meters. (Full article...) -
Image 19
Chumpe (possibly from chumpi Jaqaru for corn with yellow seeds and Quechua for belt; or ch'umpi Jaqaru for red and Quechua for brown), is a mountain in the north of the Pariacaca mountain range in the Andes of Peru, about 5,200 metres (17,060 ft) high. It is situated in the Junín Region, Yauli Province, in the districts of Huay-Huay and Yauli District. Chumpe lies east of Lake Pumacocha. The mining town of San Cristóbal is situated at its feet. (Full article...) -
Image 20Pico El Toro is a mountain in the Andes of Venezuela. It has a height of 4755 metres. (Full article...)
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Image 21
Laram Q'awa (Aymara larama blue, q'awa little river, ditch, crevice, fissure, gap in the earth, "blue brook" or "blue ravine", Hispanicized spellings Laram Khaua, Larancagua) is a 5,182-metre-high (17,001 ft) mountain in the Andes. According to the Bolivian IGM map 1:50,000 'Nevados Payachata Hoja 5739-I' it is situated on Bolivian terrain in the La Paz Department, Pacajes Province (Charaña Municipality), at the border with Chile. It lies north-west of the mountains Kunturiri, Phaq'u Q'awa and another mountain on the border named Laram Q'awa (Laram Khaua). One of three different rivers of this area called Kunturiri (Condoriri) originates north-east of the mountain near Phaq'u Q'awa. It flows in a bow along the northern slopes of Laram Q'awa towards Chile. (Full article...) -
Image 22
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 23
Doña Juana (Spanish: Volcán Doña Juana) is a stratovolcano, located within the Doña Juana-Cascabel Volcanic Complex National Natural Park (Spanish: Parque Nacional Natural Complejo Volcánico Doña Juana-Cascabel) in Nariño, Colombia.
With a previous eruption of VEI 4, Doña Juana is rated as a "large" volcano of "cataclysmic" destructive power. During its last eruption, in 1906, more than 100 people were killed and many houses were destroyed. (Full article...) -
Image 24
The llama (/ˈlɑːmə/; Spanish pronunciation: [ˈʎama] or [ˈʝama]) (Lama glama) is a domesticated South American camelid, widely used as a meat and pack animal by Andean cultures since the pre-Columbian era.
Llamas are social animals and live with others as a herd. Their wool is soft and contains only a small amount of lanolin. Llamas can learn simple tasks after a few repetitions. When using a pack, they can carry about 25 to 30% of their body weight for 8 to 13 km (5–8 miles). The name llama (also historically spelled "lama" or "glama") was adopted by European settlers from native Peruvians. (Full article...) -
Image 25
Chungará is a lake situated in the extreme north of Chile at an elevation of 4,517 metres (14,820 ft), in the Altiplano of Arica y Parinacota Region in the Lauca National Park. It has a surface area of about 21.5–22.5 square kilometres (8.3–8.7 sq mi) and has a maximum depth of about 26–40 metres (85–131 ft). It receives inflow through the Río Chungara with some minor additional inflows, and loses most of its water to evaporation; seepage into the Laguna Quta Qutani plays a minor role.
The lake formed between 8,000 and 17,000 years ago when the volcano Parinacota collapsed and the debris from the collapse dammed the Lauca River. Since then the lake has progressively grown owing to decreasing seepage. The lake is part of the Lauca National Park; a planned diversion of the lake's waters into the Azapa Valley being abandoned after a decision by the Chilean Supreme Court. (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 2Pico Humboldt at sunset (from Andes)
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Image 3Peruvian farmers sowing maize and beans (from Andes)
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Image 8Ulluco: Common crop of the Andean region (from Andean agriculture)
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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 10Aerial 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.
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Image 18Syncline 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 21Bolivian Andes (from Andes)
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Image 22Huayna Potosí, Bolivia (from Andes)
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Image 23Mashua tubers (from Andean agriculture)
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Image 26Pacha Mama Ceremony (from Andean agriculture)
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Image 27A 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 28Irrigating land in the Peruvian Andes (from Andes)
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Image 29Simplified sketch of the present-situation along most of the Andes (from Andean orogeny)
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Image 30The 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 31Central Andes (from Andes)
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Image 32Map 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 33Topographic 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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