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The Andes Portal

The Andes mountain range as seen from a plane, between Santiago de Chile and Mendoza, Argentina, in summer

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 kilometres (5,500 mi) long and 200 to 700 kilometres (120 to 430 mi) wide (widest between 18°S and 20°S latitude) and has an average height of about 4,000 metres (13,000 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 Arequipa, Bogotá, Cali, Medellín, El Alto, La Paz, Mérida, Santiago and Sucre. 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 metres (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 metres (22,615 ft). (Full article...)

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Selected articles

  • Image 1 View of Cardenal Antonio Samoré Pass during winter, latitude 41°S The Wet Andes (Spanish: Andes húmedos) is a climatic and glaciological subregion of the Andes. Together with the Dry Andes it is one of the two subregions of the Argentine and Chilean Andes. (Full article...)

    View of Cardenal Antonio Samoré Pass during winter, latitude 41°S

    The Wet Andes (Spanish: Andes húmedos) is a climatic and glaciological subregion of the Andes. Together with the Dry Andes it is one of the two subregions of the Argentine and Chilean Andes. (Full article...)
  • Image 2 Peak Bolívar during snow season 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...)

    Peak Bolívar during snow season

    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...)
  • Image 3 Monte Pissis from the northeast 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 second-tallest volcano in the world and the third-highest mountain 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...)

    Monte Pissis from the northeast

    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 second-tallest volcano in the world and the third-highest mountain 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 4 Pomerape and the saddle below, as seen from south (Parinacota slopes) Pomerape is a stratovolcano lying on the border of northern Chile and Bolivia (Oruro Department, Sajama Province, Curahuara de Carangas Municipality). It is part of the Payachata complex of volcanoes, together with Parinacota Volcano to the south. The name "Payachata" means "twins" and refers to their appearance. It hosts glaciers down to elevations of 5,300–5,800 metres (17,400–19,000 ft), lower on the northern slope. Pomerape is a complex of lava domes, accompanied by lava flows which were emplaced atop of the domes. It was active about 200,000 years ago. The lava domes formed first and were later buried by the actual volcanic cone, which unlike the rhyolitic-dacitic domes is formed by hornblende andesite. The "Chungará Andesites" and lava dome complex of Parinacota were laid down at this time. Pomerape is associated with an adventive vent that has erupted mafic magmas. The main cone was last active 106,000 +- 7,000 years ago, the adventive vent is dated to 205,000 ± 24,000 years ago. (Full article...)

    Pomerape and the saddle below, as seen from south (Parinacota slopes)

    Pomerape is a stratovolcano lying on the border of northern Chile and Bolivia (Oruro Department, Sajama Province, Curahuara de Carangas Municipality). It is part of the Payachata complex of volcanoes, together with Parinacota Volcano to the south. The name "Payachata" means "twins" and refers to their appearance. It hosts glaciers down to elevations of 5,300–5,800 metres (17,400–19,000 ft), lower on the northern slope.

    Pomerape is a complex of lava domes, accompanied by lava flows which were emplaced atop of the domes. It was active about 200,000 years ago. The lava domes formed first and were later buried by the actual volcanic cone, which unlike the rhyolitic-dacitic domes is formed by hornblende andesite. The "Chungará Andesites" and lava dome complex of Parinacota were laid down at this time. Pomerape is associated with an adventive vent that has erupted mafic magmas. The main cone was last active 106,000 +- 7,000 years ago, the adventive vent is dated to 205,000 ± 24,000 years ago. (Full article...)
  • Image 5 Galeras in December 2005 Galeras (Urcunina among the 16th-century indigenous people) is an active 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...)

    Galeras in December 2005

    Galeras (Urcunina among the 16th-century indigenous people) is an active 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 6 Location within Bolivia 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...)

    Location within Bolivia

    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 7 Argentina / Chile 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...)

    Argentina / Chile

    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 8 Cumbal in 2011 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. On July 10, 2012, the Colombian Geological Service changed the activity level of the volcano from green to yellow, motivated by changes in the behavior of the volcanic edifice, a situation that still persists. (Full article...)

    Cumbal in 2011

    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.

    On July 10, 2012, the Colombian Geological Service changed the activity level of the volcano from green to yellow, motivated by changes in the behavior of the volcanic edifice, a situation that still persists. (Full article...)
  • Image 9 The volcanoes Acotango (left) and Capurata (right) Acotango is the central and highest of a group of stratovolcanoes straddling the border of Bolivia and Chile. It is 6,052 metres (19,856 ft) high. The group is known as Kimsa Chata and consists of three mountains: Acotango, Umurata (5,730 metres (18,799 ft)) north of it and Capurata (5,990 metres (19,652 ft)) south of it. The group lies along a north–south alignment. The Acotango volcano is heavily eroded, but a lava flow on its northern flank is morphologically young, suggesting Acotango was active in the Holocene. Later research has suggested that lava flow may be of Pleistocene age. Argon-argon dating has yielded ages of 192,000±8,000 and 241,000±27,000 years on dacites from Acotango. Glacial activity has exposed parts of the inner volcano, which is hydrothermally altered. Glacial moraines lie at an altitude of 4,200 metres (13,800 ft) but a present ice cap is only found past 6,000 metres (20,000 ft) of altitude. (Full article...)

    The volcanoes Acotango (left) and Capurata (right)

    Acotango is the central and highest of a group of stratovolcanoes straddling the border of Bolivia and Chile. It is 6,052 metres (19,856 ft) high. The group is known as Kimsa Chata and consists of three mountains: Acotango, Umurata (5,730 metres (18,799 ft)) north of it and Capurata (5,990 metres (19,652 ft)) south of it.

    The group lies along a north–south alignment. The Acotango volcano is heavily eroded, but a lava flow on its northern flank is morphologically young, suggesting Acotango was active in the Holocene. Later research has suggested that lava flow may be of Pleistocene age. Argon-argon dating has yielded ages of 192,000±8,000 and 241,000±27,000 years on dacites from Acotango. Glacial activity has exposed parts of the inner volcano, which is hydrothermally altered. Glacial moraines lie at an altitude of 4,200 metres (13,800 ft) but a present ice cap is only found past 6,000 metres (20,000 ft) of altitude. (Full article...)
  • Image 10 Peru Huaytapallana (possibly from in the Quechua spelling Waytapallana; wayta wild flower, a little bunch of flowers, pallay to collect, pallana an instrument to collect fruit / collectable, Waytapallana "a place where you collect wild flowers",) or Lasuntay is the highest peak in the Huaytapallana mountain range in the Andes of Peru. Its summit reaches about 5,557 m (18,232 ft) above sea level. The mountain is situated in the Junín Region, Huancayo Province, in the districts of Huancayo and Pariahuanca. (Full article...)

    Peru

    Huaytapallana (possibly from in the Quechua spelling Waytapallana; wayta wild flower, a little bunch of flowers, pallay to collect, pallana an instrument to collect fruit / collectable, Waytapallana "a place where you collect wild flowers",) or Lasuntay is the highest peak in the Huaytapallana mountain range in the Andes of Peru. Its summit reaches about 5,557 m (18,232 ft) above sea level. The mountain is situated in the Junín Region, Huancayo Province, in the districts of Huancayo and Pariahuanca. (Full article...)
  • Image 11 Location of Sangay in Ecuador Sangay (also known as Macas, Sanagay, or Sangai) is an active stratovolcano in central Ecuador. It exhibits mostly strombolian activity. Geologically, Sangay marks the southern boundary of the Northern Volcanic Zone, and its position straddling two major pieces of crust accounts for its high level of activity. Sangay's approximately 500,000-year-old history is one of instability; two previous versions of the mountain were destroyed in massive flank collapses, evidence of which still litters its surroundings today. Due to its remoteness, Sangay hosts a significant biological community with fauna such as the mountain tapir, giant otter, Andean cock-of-the-rock and king vulture. Since 1979, its ecological community has been protected as part of the Sangay National Park. Although climbing the mountain is hampered by its remoteness, poor weather conditions, river flooding, and the danger of falling ejecta, the volcano is regularly climbed, a feat first achieved by Robert T. Moore in 1929. (Full article...)

    Location of Sangay in Ecuador

    Sangay (also known as Macas, Sanagay, or Sangai) is an active stratovolcano in central Ecuador. It exhibits mostly strombolian activity. Geologically, Sangay marks the southern boundary of the Northern Volcanic Zone, and its position straddling two major pieces of crust accounts for its high level of activity. Sangay's approximately 500,000-year-old history is one of instability; two previous versions of the mountain were destroyed in massive flank collapses, evidence of which still litters its surroundings today.

    Due to its remoteness, Sangay hosts a significant biological community with fauna such as the mountain tapir, giant otter, Andean cock-of-the-rock and king vulture. Since 1979, its ecological community has been protected as part of the Sangay National Park. Although climbing the mountain is hampered by its remoteness, poor weather conditions, river flooding, and the danger of falling ejecta, the volcano is regularly climbed, a feat first achieved by Robert T. Moore in 1929. (Full article...)
  • Image 12 Tres Cruces from Ojos del Salado to the east. The higher south summit is on the left, the central summit on the right. Nevado Tres Cruces is a massif of volcanic origin in the Andes Mountains on the border of Argentina and Chile. It has two main summits, Tres Cruces Sur at 6,748 metres (22,139 ft) and Tres Cruces Centro at 6,629 m (21,749 ft) and a third minor summit, Tres Cruces Norte 6,030 m (19,780 ft). Tres Cruces Sur is the sixth highest mountain in the Andes. The volcano has an extended history of activity, going back at least 1.5 million years. A number of lava domes surround the complex and a number of craters lie on its summits. The main volcano is of rhyodacitic composition and has generated two major ignimbritic eruptions, one 1.5 million years ago and a second 67,000 years ago. The last eruption was 28,000 years ago, but the volcano is a candidate source for a Holocene eruption and could erupt again in the future. (Full article...)

    Tres Cruces from Ojos del Salado to the east. The higher south summit is on the left, the central summit on the right.

    Nevado Tres Cruces is a massif of volcanic origin in the Andes Mountains on the border of Argentina and Chile. It has two main summits, Tres Cruces Sur at 6,748 metres (22,139 ft) and Tres Cruces Centro at 6,629 m (21,749 ft) and a third minor summit, Tres Cruces Norte 6,030 m (19,780 ft). Tres Cruces Sur is the sixth highest mountain in the Andes.

    The volcano has an extended history of activity, going back at least 1.5 million years. A number of lava domes surround the complex and a number of craters lie on its summits. The main volcano is of rhyodacitic composition and has generated two major ignimbritic eruptions, one 1.5 million years ago and a second 67,000 years ago. The last eruption was 28,000 years ago, but the volcano is a candidate source for a Holocene eruption and could erupt again in the future. (Full article...)
  • Image 13 Pico Mucuñuque is a mountain in the Sierra de Santo Domingo range of the Venezuelan Andes, located in Mérida state, Venezuela. It has a height of 4,609 metres. (Full article...)

    Pico Mucuñuque is a mountain in the Sierra de Santo Domingo
    range of the Venezuelan Andes, located in Mérida state,
    Venezuela. It has a height of 4,609 metres. (Full article...)
  • Image 14 Pico El Toro as seen from Mérida. Pico El Toro is a mountain in the Andes of Venezuela. It has a height of 4755 metres. (Full article...)

    Pico El Toro as seen from Mérida.

    Pico El Toro is a mountain in the Andes of Venezuela. It has a height of 4755 metres. (Full article...)
  • Image 15 Huascarán as viewed from Cordillera Negra Huascarán (Spanish pronunciation: [waskaˈɾan], wass-ka-RAHN; Quechua: Waskaran), Nevado Huascarán or Mataraju is a mountain located in Yungay Province, Ancash Department, Peru. It is situated in the Cordillera Blanca range of the western Andes. The southern summit of Huascarán (Huascarán Sur), which reaches 6,768 metres (22,205 ft), is the highest point in Peru, the northern Andes (north of Lake Titicaca), and in all of the Earth's tropics. It is the fourth highest mountain in South America after Aconcagua, Ojos del Salado, and Monte Pissis. Huascarán is ranked 25th by topographic isolation. (Full article...)

    Huascarán as viewed from Cordillera Negra

    Huascarán (Spanish pronunciation: [waskaˈɾan], wass-ka-RAHN; Quechua: Waskaran), Nevado Huascarán or Mataraju is a mountain located in Yungay Province, Ancash Department, Peru. It is situated in the Cordillera Blanca range of the western Andes. The southern summit of Huascarán (Huascarán Sur), which reaches 6,768 metres (22,205 ft), is the highest point in Peru, the northern Andes (north of Lake Titicaca), and in all of the Earth's tropics. It is the fourth highest mountain in South America after Aconcagua, Ojos del Salado, and Monte Pissis. Huascarán is ranked 25th by topographic isolation. (Full article...)
  • Image 16 Map showing Iru Phutunqu on the border of Bolivia and Chile, south of the Umani Iruputuncu (possibly from Aymara iru spiny Peruvian feather grass, phutunqu a small vessel or a hole, pit, crater) is a mountain in the Andes in the Cordillera Occidental on the border of Bolivia and Chile. The Chilean side is in the Tarapacá Region, and the Bolivian side is in the Potosí Department, Daniel Campos Province, Llica Municipality. Iruputuncu is southeast of Mount Candelaria, west of the Salar de Uyuni salt flat and south of the Umani. It is about 4,200 m (13,780 ft) high. (Full article...)
    Map showing Iru Phutunqu on the border of Bolivia and Chile, south of the Umani

    Iruputuncu (possibly from Aymara iru spiny Peruvian feather grass, phutunqu a small vessel or a hole, pit, crater) is a mountain in the Andes in the Cordillera Occidental on the border of Bolivia and Chile. The Chilean side is in the Tarapacá Region, and the Bolivian side is in the Potosí Department, Daniel Campos Province, Llica Municipality. Iruputuncu is southeast of Mount Candelaria, west of the Salar de Uyuni salt flat and south of the Umani. It is about 4,200 m (13,780 ft) high. (Full article...)
  • Image 17 Patilla Pata is located NW of Nevado Sajama (this latter is in the lower center of this NASA image, with north to the top right corner). 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...)

    Patilla Pata is located NW of Nevado Sajama (this latter is in the lower center of this NASA image, with north to the top right corner).

    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...)
  • Image 18 As snow diminishes, the mountain is increasingly referred to as Paramillo del Quindío 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...)

    As snow diminishes, the mountain is increasingly referred to as Paramillo del Quindío

    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 19 The Andean flicker (Colaptes rupicola) is a species of bird in subfamily Picinae of the woodpecker family Picidae. It is found in Argentina, Bolivia, Chile, Ecuador, and Peru. (Full article...)

    The Andean flicker (Colaptes rupicola) is a species of bird in subfamily Picinae of the woodpecker family Picidae. It is found in Argentina, Bolivia, Chile, Ecuador, and Peru. (Full article...)
  • Image 20 The double peak of The Illinizas The Illinizas are a pair of volcanic mountains that are located in the north of Latacunga, Cotopaxi, Ecuador. They are located in the Illinizas Ecological Reserve (Spanish: Reserva Ecológica Los Illinizas). These twin mountains are separated by a saddle that is about a kilometer long. The peaks are among the highest in Ecuador, with Illiniza Sur standing slightly taller than Illiniza Norte, its northern counterpart, at 5248 metres and 5126 metres respectively. Most guidebooks (for example, Lonely Planet Ecuador, Ecuador: A Climbing Guide) spell the mountain with only one "l" as in Iliniza. The name Illinizas is derived from the Kunza words for "masculine hill." (Full article...)

    The double peak of The Illinizas

    The Illinizas are a pair of volcanic mountains that are located in the north of Latacunga, Cotopaxi, Ecuador. They are located in the Illinizas Ecological Reserve (Spanish: Reserva Ecológica Los Illinizas). These twin mountains are separated by a saddle that is about a kilometer long. The peaks are among the highest in Ecuador, with Illiniza Sur standing slightly taller than Illiniza Norte, its northern counterpart, at 5248 metres and 5126 metres respectively.

    Most guidebooks (for example, Lonely Planet Ecuador, Ecuador: A Climbing Guide) spell the mountain with only one "l" as in Iliniza. The name Illinizas is derived from the Kunza words for "masculine hill." (Full article...)
  • Image 21 Acamarachi viewed from the north Acamarachi (also known as Pili) is a 6,046-metre (19,836 ft) high volcano in northern Chile. In this part of Chile, it is the highest volcano. Its name means "black moon". It is a volcano in the Central Volcanic Zone of the Andes, a zone of strong volcanic activity during the last million years. Old volcanoes in the area are well-preserved, due to the dry climate. Acamarachi itself is a cone-shaped volcano with steep upper flanks and a lava dome on its northern side. While there is no indication of historical activity and the flank lava flows are old, some lava flows around the summit crater and a lava coulee north of Acamarachi on the saddle between Acamarachi and Colachi volcano may be postglacial in age. Acamarachi is formed by andesitic and dacitic rocks. (Full article...)

    Acamarachi viewed from the north

    Acamarachi (also known as Pili) is a 6,046-metre (19,836 ft) high volcano in northern Chile. In this part of Chile, it is the highest volcano. Its name means "black moon". It is a volcano in the Central Volcanic Zone of the Andes, a zone of strong volcanic activity during the last million years. Old volcanoes in the area are well-preserved, due to the dry climate.

    Acamarachi itself is a cone-shaped volcano with steep upper flanks and a lava dome on its northern side. While there is no indication of historical activity and the flank lava flows are old, some lava flows around the summit crater and a lava coulee north of Acamarachi on the saddle between Acamarachi and Colachi volcano may be postglacial in age. Acamarachi is formed by andesitic and dacitic rocks. (Full article...)
  • Image 22 Torres del Paine The Cordillera Paine is a group of mountains (a cordillera) in Torres del Paine National Park in Chilean Patagonia. It is 280 km (170 mi) north of Punta Arenas, and about 1,960 km (1,220 mi) south of the Chilean capital Santiago. The cordillera is part of 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...)

    Torres del Paine

    The Cordillera Paine is a group of mountains (a cordillera) in Torres del Paine National Park in Chilean Patagonia. It is 280 km (170 mi) north of Punta Arenas, and about 1,960 km (1,220 mi) south of the Chilean capital Santiago. The cordillera is part of 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...)
  • Image 23 Pico Piedras Blancas (Right) and Pico Mucumamó (left) seen from Alto de Mifafí 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...)

    Pico Piedras Blancas (Right) and Pico Mucumamó (left) seen from Alto de Mifafí

    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 24 Runtuy (Quechua for "to hail" or "to lay an egg") is a mountain in the eastern extensions of the Cordillera Blanca in the Andes of Peru which reaches a height of approximately 4,000 m (13,000 ft). It is located in the Ancash Region, Huari Province, Huari District, northwest of Huari. (Full article...)
    Runtuy (Quechua for "to hail" or "to lay an egg") is a mountain in the eastern extensions of the Cordillera Blanca in the Andes of Peru which reaches a height of approximately 4,000 m (13,000 ft). It is located in the Ancash Region, Huari Province, Huari District, northwest of Huari. (Full article...)
  • Image 25 Maipo volcano in 2008 Maipo is a stratovolcano in the Andes, lying on the border between Argentina and Chile. It is located 90 km (56 mi) south of Tupungato and about 100 km (62 mi) southeast of Santiago. It has a symmetrical, conical volcanic shape, and is among the southernmost 5,000 metre peaks in the Andes. Maipo is located within the Diamante caldera, a feature measuring 15 km by 20 km that is about half a million years old. It rises about 1,900 m (6,230 ft) above the floor of the caldera. Immediately to the east of the peak, on the eastern side of the caldera floor, is Laguna del Diamante, a lake that formed when lava flows blocked drainage channels from the caldera in 1826. The Diamante Caldera erupted 450 cubic kilometers (108 cu mi) of tephra, 450 ka. (Full article...)

    Maipo volcano in 2008

    Maipo is a stratovolcano in the Andes, lying on the border between Argentina and Chile. It is located 90 km (56 mi) south of Tupungato and about 100 km (62 mi) southeast of Santiago. It has a symmetrical, conical volcanic shape, and is among the southernmost 5,000 metre peaks in the Andes.

    Maipo is located within the Diamante caldera, a feature measuring 15 km by 20 km that is about half a million years old. It rises about 1,900 m (6,230 ft) above the floor of the caldera. Immediately to the east of the peak, on the eastern side of the caldera floor, is Laguna del Diamante, a lake that formed when lava flows blocked drainage channels from the caldera in 1826. The Diamante Caldera erupted 450 cubic kilometers (108 cu mi) of tephra, 450 ka. (Full article...)

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30 May 2026 – MV Hondius hantavirus outbreak
The MV Hondius cruise ship, which was at center of hantavirus infections including the Andes strain during the outbreak, is cleared to sail again after undergoing cleaning and disinfection. (AFP via The Straits Times)

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