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The Andes Portal
The Andes, Andes Mountains or Andean Mountains (Spanish: Cordillera de los Andes) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is 7,000 km (4,350 mi) long, 200 to 700 km (124 to 435 mi) wide (widest between 18°S - 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 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 Mount 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
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 to 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...)
Cerro Bayo is a complex volcano on the northern part border between Argentina and Chile. It consists of four overlapping stratovolcanoes along a north–south line. The main volcano fauce is located on the Argentine side, thought the summit of the complex is just west of the border, in Chile. The volcano is about 800,000 years old, but it is associated with ongoing ground uplift encompassing also the more northerly Lastarria and Cordón del Azufre volcanoes. The 5,401-metre (17,720 ft) high summit is the source of two viscous dacitic lava flows with prominent levees that traveled to the north. In 2007 a steam eruption were observed by researchers investigating nearby salt pans. (Full article...)
The Puracé National Natural Park (Spanish: Parque Nacional Natural Puracé) is a national park located in the Andean Region of Colombia, southeast of the city of Popayán in the Cordillera Central range. Its main feature is the active stratovolcano Puracé, one of Colombia's most active volcanoes. Four of the country's most important rivers originate within the area: Magdalena River, Cauca River, Japurá River and Patía River. (Full article...)
Falso Azufre is a complex volcano at the border of Argentina and Chile.
Falso Azufre is elongated in east-west direction and contains craters and lava domes; most craters have diameters of 300–600 metres (980–1,970 ft) with the exception of the main crater, which is 1 by 1.3 kilometres (0.62 mi × 0.81 mi) wide. The highest summit Cerro Falso Azufre lies at the western end in Chile, which has mostly generated pyroclastic material from craters. The probably youngest segment of the volcano is the eastern section in Argentina, where two lava domes and two cones are located; these form the Dos Conos volcano. Some lava flows linked to Dos Conos are up to 7 kilometres (4.3 mi) long. The oldest is known as the Kunstmann edifice on the northwestern side of Falso Azufre; Kunstmann volcano features a 3 kilometres (1.9 mi) wide scar formed by a sector collapse. Falso Azufre with a base surface of 387 square kilometres (149 sq mi) is one of the biggest volcanoes in the area. The presence of two oppositely curved vent alignments gives the complex an arc-like shape which reaches heights of about 5,900 metres (19,400 ft) above sea level. (Full article...)
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...)
The Titicaca orestias, Lake Titicaca orestias, or Lake Titicaca flat-headed fish (Orestias cuvieri), also known by its native name amanto, is a likely extinct freshwater killifish from Lake Titicaca in South America. It belongs in the pupfish genus Orestias, endemic to lakes, rivers and streams in the Andean highlands. With a total length of up to 27 cm (10.6 in), it was the largest member in that genus. In the hope that an undiscovered population remains, it is listed as Data Deficient by the IUCN. Despite its common name, it is not the only Orestias from Lake Titicaca.
Its mouth was nearly turned upwards, thereby giving the flat head a concave shape. The head took up nearly a third of the whole body length. The upperside was greenish-yellow to umber. The lower jaw was black. Its scales were oddly light coloured at their centre. The scales of the young were blotched. (Full article...)
Reventador is an active stratovolcano which lies in the eastern Andes of Ecuador. It lies in a remote area of the national park of the same name, which is Spanish for "exploder". Since 1541, it has erupted over 25 times, although its isolated location means that many of its eruptions have gone unreported. Its most recent eruption began in 2008 and is ongoing . The largest historical eruption occurred in 2002. During that eruption, the plume from the volcano reached a height of 17 kilometres (11 mi) and pyroclastic flows went up to 7 kilometres (4.3 mi) from the cone.
Reventador is part of a chain of volcanoes in the Cordillera Real, much further east than the main volcanic axis of the region. The volcano rises above the jungles of the western Amazon basin and the flanks are densely clad in forests. The volcano has a caldera that is 4 km (2.5 mi) across; there is a wide gap in the caldera wall to the east, formed by a collapse of the structure. There is an unvegetated stratovolcano rising about 1,300 m (4,265 ft) from inside the caldera, and this is the main seat of current volcanic activity. The lavas are andesitic. (Full article...)
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...)
Cumbal is a stratovolcano of the Caribe Terrane, located at the Nudo de los Pastos in Nariño, Colombia. It is the southernmost historically active volcano of Colombia and is together with Chiles and Azufral one of the few volcanoes of the Western Ranges. The volcano is dominated by andesites. (Full article...)
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...)
The Junín grebe (Podiceps taczanowskii), also known as Junin flightless grebe or puna grebe, is a grebe found only on Lake Junin in the highlands of Junín, west-central Peru. The grebe generally breeds in bays and channels around the edge of the Lake, within 8–75 m (26–246 ft) of reed beds, entering the reeds only for nesting or roosting. When not breeding, Junin grebe prefer open water, moving far out from lake shores. The current population is estimated at less than 250.
The scientific name commemorates the Polish zoologist Władysław Taczanowski, author of Ornithology of Peru (1884–86). (Full article...)
Individual from the captive breeding program at Prague Zoo
Telmatobius culeus, commonly known as the Titicaca water 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...)
The Llao Llao Hotel is located in the tourist resort of San Carlos de Bariloche within the province of Río Negro, Argentina.
This famous hotel is situated in the foothills of the Andes on a hill between the Moreno Lake and Nahuel Huapi lakes. (Full article...)
Artesonraju is a mountain peak located near the city of Caraz in the Cordillera Blanca mountain range in the Peruvian Andes. 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 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...)
Puracé is an andesitic stratovolcano located in the Puracé National Natural Park in the Cauca Department, Colombia. It is part of the North Volcanic Zone of the Andean Volcanic Belt. The volcano is located at the intersection of the Coconucos and Morras Faults.
It is one of the most active volcanoes in Colombia. Large explosive eruptions occurred in 1849, 1869, 1885, 1949, 1950, 1956, and 1957. There were about a dozen eruptions in the 20th century, the most recent being in 1977. On this occasion, volcanic ash was deposited 7 kilometres (4.3 mi) away. Fumaroles were seen near the summit in 1990, and hot springs emerged from some of the lower slopes. (Full article...)
Male (nominate)
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 widely regarded as 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 its 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...)
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. It was first ascended in 1934 by Adam Karpiński and Wiktor Ostrowski, members of a Polish andinist expedition led by Konstanty Jodko-Narkiewicz. The Polish party erected a cairn on the summit.
In 1968, after several attempts by some of the strongest Argentine climbers, a Japanese group led by Saburo Yoshida accomplished the first ascension of the south side. In 1971 an Austrian expedition led by Fritz Moravec and Othmar Kucera, climbed the north side. In 1972, Italians Sergio Job Gino and Antonio Beorchia Nigris climbed the Mercedario through the normal route and discovered some Inca ruins just below the summit. In January 1975 an Italian expedition led by Antonio Mastellaro managed to climb the east side.
In 1983 a small expedition from Gorizia was able to traverse the south-west ridge, which is considered the most difficult trail of the mountain, and one of the last mountaineering issues in the Andes. On January 27 Mauro Collini, Sergio Figel, Mario Tavagnutti and Rudi Vittori reached the top. (Full article...)
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...)
Trichomycterus rivulatus is a species of pencil catfish that is native to high-altitude Andean streams and lakes (including Junin, Poopó and Titicaca) in southern Peru, western Bolivia and northern Chile. It is the largest species in the genus Trichomycterus and grows to a maximum length of 37.4 centimetres (14.7 in) TL. The species is regularly caught as a food fish. However, because of pollution, studies have revealed levels of metals in T. rivulatus of Lake Titicaca that exceed the internationally recommended safety thresholds for human consumption. (Full article...)
Cabaraya is a stratovolcano in Bolivia. It lies between the volcanoes Isluga and Tata Sabaya, immediately east of the border with Chile. (Full article...)
The Andean flicker (Colaptes rupicola) is a South American species of woodpecker. It is found in grassland, shrubland and Polylepis woodland at altitudes of 2,000–5,000 metres (6,600–16,400 ft) in the Puna ecoregion. Together with the campo flicker and ground woodpecker, it is one of the few largely terrestrial woodpeckers. (Full article...)
Pico Humboldt is Venezuela's second highest peak, at 4,940 metres above sea level. It is located in the Sierra Nevada de Merida, in the Venezuelan Andes of (Mérida State). The peak, its sister peak Pico Bonpland, and the surrounding páramos are protected by the Sierra Nevada National Park. The mountain is named after German explorer and naturalist Alexander von Humboldt. (Full article...)
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...)- Yerupaja 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...)
The Dry Andes (Spanish: Andes áridos) is a climatic and glaciological subregion of the Andes. Together with the Wet Andes it is one of the two subregions of the Argentine and Chilean Andes. The Dry Andes runs from the Atacama Desert in northern Chile and Northwest Argentina south to a latitude of 35°S in Chile. In Argentina the Dry Andes reaches 40°S due to the leeward effect of the Andes. According to Luis Lliboutry
the Dry Andes can be defined by the distribution of penitentes. The southernmost well developed penitentes are found on Lanín Volcano.
The Principal Cordillera near Santiago may have subject of significant glaciation as early as 1 million years ago as indicated by the development of glacial valleys. (Full article...)
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Did you know...
- ... that Distichia muscoides provides good grazing all-year-round in the High Andes for domesticated llamas and alpacas, and non-native livestock?
- ... that the gray grass mouse inhabits forests of Podocarpus parlatorei and Alnus acuminata on steep hillsides on the eastern flanks of the Andes?
- ... that the female Andes marsupial frog carries her developing young in a pouch on her back?
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General images
The following are images from various Andes-related articles on Wikipedia.
Bolivian Andes
Map of a north-south sea-parallel pattern of rock ages in western Colombia. This pattern is a result of the Andean orogeny.
Map of South America showing the Andes running along the entire western part (roughly parallel to the Pacific coast) of the continent
Rift valley near Quilotoa, Ecuador
A male Andean cock-of-the-rock, a species found in humid Andean forests and the national bird of Peru
Syncline next to Nordenskjöld Lake in Torres del Paine National Park. The syncline formed during the Andean orogeny.
Sajama, Bolivia
Paleogeography 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.
Mashua tubers
Chimborazo near Riobamba, Ecuador
Nevado del Huila, Colombia
La Paz, Bolivia is the highest capital city in the world
The Aconcagua, Argentina, the highest mountain in the Americas
Irrigating land in the Peruvian Andes
Chilean huasos, 19th century
Andes Region of South America
Aerial view of Valle Carbajal in the FuegianThe 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.
View of Mérida, Venezuela
Pico Bolívar, Venezuela
Ulluco: Common crop of the Andean region
Yerupaja, Peru
Simplified sketch of the present-situation along most of the Andes
Laguna de Sonso tropical dry forest in Northern Andes
The seaward tilting of the sedimentary strata of Salto del Fraile Formation in Peru was caused by the Andean orogeny.
Peruvian farmers sowing maize and beans
This photo from the ISS shows the high plains of the Andes Mountains in the foreground, with a line of young volcanoes facing the much lower Atacama Desert
Aconcagua
"Cono de Arita" in the Puna de Atacama, Salta (Argentina)
Central Andes
Pacha Mama Ceremony
View of Cuernos del Paine in Torres del Paine National Park, Chile
Topographic 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.
Parinacota, Bolivia/Chile
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