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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 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. (Full article...)
Selected general articles
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Image 1
Pico Bolívar is the highest mountain in Venezuela, at 4,978 metres (16,332 ft). Located in Mérida State. It can be reached only by walking; the Mérida cable car, which was the highest and longest cable car in the world when it was built, only reaches Pico Espejo. From there it is possible to climb to Pico Bolívar. The peak is named after the Venezuelan independence hero Simón Bolívar.
The Pico Bolívar is located on the mountain previously called La Columna, next to El León (4,743 m) and El Toro (4,695 m). The new name was suggested by Tulio Febres Cordero in 1925. It was officially renamed on December 30, 1934. (Full article...) -
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Chumpe (possibly from Quechua chumpi: belt), Jatunriti, Ñanaloma or Yanaloma is a mountain in the Vilcanota mountain range in the Andes of Peru with 6,106 metres (20,033 ft) of elevation. It is located in the Cusco Region, Canchis Province, Pitumarca District as well as in the Quispicanchi Province, Ocongate District. Chumpe lies north of Lake Sibinacocha. (Full article...) -
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The guanaco (/ɡwɑːˈnɑːkoʊ/ ghwuah-NAH-koh; Lama guanicoe) is a camelid native to South America, closely related to the llama. Guanacos are one of two wild South American camelids; the other species is the vicuña, which lives at higher elevations. (Full article...) -
Image 4
Rasac (possibly Quechua for toad) is a mountain in the Huayhuash mountain range in west central Peru, part of the Andes. It has a summit elevation of 6,017 metres (19,741 ft), although other sources cite a height of 6,040 metres (19,816 ft). Rasac is a long, relatively squat mountain on the western edge of the Huayhuash range, across the glacier from the tallest peak in the range, Yerupajá. Although it is a 6,000 metre mountain, Rasac's broad profile is dwarfed by Yerupajá. (Full article...) -
Image 5
Corazón (Spanish: "heart") is an inactive, eroded stratovolcano of Ecuador, situated about 30 km southwest of Quito in the western slopes of the Andes. (Full article...) -
Image 6
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 only found 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 has jokingly been referred to as the Titicaca scrotum (water) 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 7
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 8Paruma is a stratovolcano that lies on the border of Bolivia and Chile. It is part of a ridge that contains several stratovolcanos. Paruma lies at the eastern end of the ridge, with Olca to its west. The older volcano Paruma lies to east of Paruma. Paruma has clearly been active during the Holocene, with many morphologically young lava flows on its flanks. It also has persistent fumaroles. One lava flow in particular extends for 7 kilometres to the south-east of the peak. Historical activity along the ridge has been confined to one eruption from 1865 to 1867, the character of which is not precisely known. (Full article...)
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Image 9
Telmatobius is a genus of frogs native to the Andean highlands in South America, where they are found in Ecuador, Peru, Bolivia, northwestern Argentina and northern Chile. It is the only genus in the family Telmatobiidae. Some sources recognize Batrachophrynus as a valid genus distinct from Telmatobius. (Full article...) -
Image 10
Mount Darwin (Spanish: Monte Darwin) is a peak in Isla Grande de Tierra del Fuego forming part of the Cordillera Darwin, the southernmost range of the Andes, just to the north of the Beagle Channel. It is 2,438 m (7,999 ft) high.
Monte Darwin was for a long time considered as the highest peak in Tierra del Fuego, but that distinction corresponds to a nearby mountain unofficially named Monte Shipton (also somewhat confusingly referred to as Darwin or Agostini-Darwin), which is about 2,580 m (8,460 ft) high and is located at . Both peaks are best climbed in late December, January, February and March. Monte Shipton was first climbed in 1962 by Eric Shipton, E. Garcia, F. Vivanco and C. Marangunic. (Full article...) -
Image 11
The Nevado del Tolima is a Late Pleistocene to recently active andesitic stratovolcano located in the Tolima department, Colombia. The volcano lies south of Nevado del Ruiz volcano and is situated within the Los Nevados National Natural Park. The volcano, whose most recent activity dates to 1943 and last major eruption around 3600 years ago, overlies the Eocene El Bosque Batholith, dated at 49.1 ± 1.7 Ma. (Full article...) -
Image 12
The Sierra Nevada del Cocuy Chita or Guican National Natural Park (or Sierra Nevada de Chita or Sierra Nevada de Güicán, Spanish: Parque Natural Sierra Nevada del Cocuy Chita o Guican is a national park and a series of highlands and glaciated peaks located within the Cordillera Oriental mountain range in the Andes Mountains of Colombia, at its easternmost point. It also corresponds to the highest range of the Eastern Cordillera and holds the biggest glacial mass in South America, north of the Equator. Since 1977, this region is protected within a National Natural Park (NNP-Cocuy) because of its fragile páramos, extraordinary bio-diversity and endemism, and its function as a corridor for migratory species under conditions of climate change. Among the Sierra’s natural attractions are the remaining 18 ice-covered peaks (there were as many as 25 in the recent past), glacial lakes and waterfalls. (Full article...) -
Image 13Wayna Potosí (Aymara and Quechua wayna young, Hispanicized spelling Huayna Potosí) is a mountain in the Andes of Bolivia, about 4,969 metres (16,302 ft) high. It is located in the Oruro Department, Sajama Province, Turku Municipality, Turku Canton, northwest of Turku (Turco). The Turku River originates near the mountain. It is a left tributary of the Lauca River. (Full article...)
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Image 14
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 15Orestias chungarensis is a species of fish in the family Cyprinodontidae. It is endemic to Lake Chungara in Chile. (Full article...)
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Image 16
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 4,983 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 17Yerupaja Chico is a mountain in Peru.
Yerupaja Chicho rises 6,121 metres (20,082 ft) and neighboring Yerupaja rises 6,617 metres (21,709 ft). The names' literal translations are yerupaja – smaller and yerupaja – larger. They are two peaks in the Peruvian Andes. They can be viewed from above Laguna Solteracocha on the way up to Punta Sambuya on trekking trails through the Huayhuash. Chico is claimed to be a technically more difficult project for mountain climbers, although it is approximately 600 metres lower. (Full article...) -
Image 18
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...) -
Image 19
Nevado Juncal is a mountain at the border of Argentina and Chile, at the head of Aconcagua Val. It has a height of 5,953 metres (19,531 ft). It is located at La Yesera, Los Andes Department, Valparaíso Region, at the Central Andes. The mountain hosts several glaciers including the Juncal Norte and Juncal Sur. (Full article...) -
Image 20
Nevado del Ruiz (Spanish pronunciation: [neβaðo ðel ˈrwis]), also known as La Mesa de Herveo (English: Mesa of Herveo, the name of the nearby town) is a volcano on the border of the departments of Caldas and Tolima in Colombia, about 129 km (80 mi) west of the capital city Bogotá. It is a stratovolcano composed of many layers of lava alternating with hardened volcanic ash and other pyroclastic rocks. Volcanic activity at Nevado del Ruiz began about two million years ago, during the Early Pleistocene or Late Pliocene, with three major eruptive periods. The current volcanic cone formed during the present eruptive period, which began 150,000 years ago.
The volcano usually generates Vulcanian to Plinian eruptions, which produce swift-moving currents of hot gas and rock called pyroclastic flows. These eruptions often cause massive lahars (mud and debris flows), which pose a threat to human life and the environment. The impact of such an eruption is increased as the hot gas and lava melt the mountain's snowcap, adding large quantities of water to the flow. On November 13, 1985, a small eruption produced an enormous lahar that buried and destroyed the town of Armero in Tolima, causing an estimated 25,000 deaths. This event later became known as the Armero tragedy—the deadliest lahar in recorded history. Similar but less deadly incidents occurred in 1595 and 1845, consisting of a small explosive eruption followed by a large lahar. (Full article...) -
Image 21
Andean Geology (formerly Revista Geológica de Chile) is a peer-reviewed scientific journal published three times per year by the National Geology and Mining Service, Chile's geology and mining agency. The journal covers the field of geology and related earth sciences, primarily on issues that are relevant to South America, Central America, and Antarctica with a particular focus on the Andes. The journal was established in 1974 and articles are published in English and Spanish. The editor-in-chief is Waldo Vivallo (National Geology and Mining Service). (Full article...) -
Image 22
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 23
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 24
Pico Bonpland is Venezuela's third highest peak, at 4,883 metres above sea level. It is located in the Sierra Nevada de Merida, in the Venezuelan Andes of (Mérida State). The peak with its sister peak Pico Humboldt, and the surrounding páramos are protected by the Sierra Nevada National Park. The name of the peak is in honor of Aimé Bonpland, although he never visited the Venezuelan Andes.
The glaciers located in the Bonpland were the result from Merida glaciation in the Pleistocene. By 2011 they had all disappeared. (Full article...) -
Image 25
Patilla Pata is a stratovolcano in the Oruro Department in Bolivia. It is situated in the Sajama Province, in the west of the Curahuara de Carangas Municipality, at the border with Chile. Patilla Pata lies south-west of the mountain Jisk'a Kunturiri, north-east of the lake Q'asiri Quta (Khasiri Kkota) and the mountain Qullqi Warani, west of the little lake Sura Pata, south-east of the mountains Laram Q'awa, Kunturiri and Milluni and south of the little lake named Ch'iyar Quta.
The river Junt'uma K'uchu (Aymara junt'u warm, hot, uma water, k'uchu corner, "warm water corner", Junthuma Khuchu) originates south of Patilla Pata. It flows to the south-east as a right affluent of the Sajama River. (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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Selected images
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Image 1A 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 6Peruvian farmers sowing maize and beans (from Andes)
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Image 7Irrigating land in the Peruvian Andes (from Andes)
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Image 8Pico Humboldt at sunset (from Andes)
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Image 14Central Andes (from Andes)
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Image 15Bolivian Andes (from Andes)
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Image 22Aerial 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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