The Neuquén River (Spanish: Río Neuquén ) is the second most important river of the province of Neuquén in the Argentine Patagonia , after the Limay River . Rocks of the Neuquén Basin are fossiliferous, and the basin hosts what may become important fields of tight oil and gas.
157-481: The river begins in the northwest of the province at an elevation of 2,300 metres (7,500 ft), to be fed by a number of streams through valleys of the lower Andes while advancing diagonally in southeast direction. Among these streams, some of them from draining of small lakes, are the Trocomán, Reñi Leuvü, Agrio and Nahueve. Further down, its main tributaries are the rivers Varvarco, and Agrio, who provides almost
314-439: A constitutional monarchy , a proposal that was turned down. De la Serna abandoned the city, and on 12 July 1821, San Martín occupied Lima and declared Peruvian independence on 28 July 1821. He created the first Peruvian flag. Upper Peru (present-day Bolivia) remained as a Spanish stronghold until the army of Simón Bolívar liberated it three years later. José de San Martín was declared Protector of Peru. Peruvian national identity
471-508: A $ 900 million deficit. The economic turbulence of the time acerbated social tensions in Peru and partly contributed to the rise of violent rebel rural insurgent movements, like Sendero Luminoso (Shining Path) and MRTA , which caused great havoc throughout the country. The Peruvian armed forces, frustrated with the inability of the García administration to handle the nation's crises, drafted
628-618: A high biodiversity with 21,462 species of plants and animals reported as of 2003, 5,855 of them endemic , and is one of the megadiverse countries. Peru has over 1,800 species of birds (120 endemic ), over 500 species of mammals , over 300 species of reptiles, and over 1,000 species of freshwater fishes . The hundreds of mammals include rare species like the puma , jaguar and spectacled bear . The Birds of Peru produce large amounts of guano , an economically important export. The Pacific holds large quantities of sea bass , flounder , anchovies , tuna , crustaceans , and shellfish , and
785-555: A higher potential for larger, high-magnitude earthquakes in the future. The mountain range is also a source of shallow intraplate earthquakes within the South American Plate. The largest such earthquake (as of 2024) struck Peru in 1947 and measured M s 7.5. In the Peruvian Andes, these earthquakes display normal ( 1946 ), strike-slip (1976), and reverse ( 1969 , 1983) mechanisms. The Amazonian Craton
942-566: A joint ice stream network. The Andes' dendritic glacier arms, components of valley glaciers, were up to 112.5 km (69.9 mi) long and over 1,250 m (4,101 ft) thick, and spanned a vertical distance of 5,150 m (16,896 ft). The climatic glacier snowline (ELA) was lowered from 4,600 m (15,092 ft) to 3,200 m (10,499 ft) at glacial times. The Andean region cuts across several natural and floristic regions, due to its extension, from Caribbean Venezuela to cold, windy, and wet Cape Horn passing through
1099-524: A large diversity of climates. Elevations above sea level in the country range from −37 to 6,778 m (−121 to 22,238 ft) and precipitation ranges from less than 20 mm (0.79 in) annually in desert areas to more than 8,000 mm (310 in) in tropical rainforest areas. Due to its geography, Peru can be divide into three main climates. The unbroken and relatively slim coastal region has moderate temperatures, low precipitation, and high humidity, except for its warmer, wetter northern reaches. In
1256-583: A mix of cultures and ethnicities that did not exist before the Spanish conquered the Peruvian territory. Even though many of the Inca traditions were lost or diluted, new customs, traditions and knowledge were added, creating a rich mixed Peruvian culture. Two of the most important Indigenous rebellions against the Spanish were that of Juan Santos Atahualpa in 1742, and Rebellion of Túpac Amaru II in 1780 around
1413-594: A north–south axis of cultural influences. A long series of cultural development culminated in the expansion of the Inca civilization and Inca Empire in the central Andes during the 15th century. The Incas formed this civilization through imperialistic militarism as well as careful and meticulous governmental management. The government sponsored the construction of aqueducts and roads in addition to pre-existing installations. Some of these constructions still exist today. Devastated by European diseases and by civil war ,
1570-540: A period of relative economic and political stability began due to the exploitation of guano that ended with the War of the Pacific (1879–1884). Throughout the 20th century, Peru grappled with political and social instability, including the internal conflict between the state and guerrilla groups, interspersed with periods of economic growth. Implementation of Plan Verde shifted Peru towards neoliberal economics under
1727-700: A political and economic grouping of countries along Latin America's Pacific coast that share common trends of positive growth, stable macroeconomic foundations, improved governance and an openness to global integration. Peru ranks high in social freedom ; it is an active member of the Asia-Pacific Economic Cooperation , the Pacific Alliance , the Comprehensive and Progressive Agreement for Trans-Pacific Partnership and
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#17327728969811884-508: A powerful state which, in the span of a century, formed the largest empire in the pre-Columbian Americas with their capital in Cusco . The Incas of Cusco originally represented one of the small and relatively minor ethnic groups, the Quechuas . Gradually, as early as the thirteenth century, they began to expand and incorporate their neighbors. Inca expansion was slow until about the middle of
2041-577: A result of these and other changes, the Spaniards and their creole successors came to monopolize control over the land, seizing many of the best lands abandoned by the massive native depopulation. However, the Spanish did not resist the Portuguese expansion of Brazil across the meridian. The Treaty of Tordesillas was rendered meaningless between 1580 and 1640 while Spain controlled Portugal . The need to ease communication and trade with Spain led to
2198-399: A self-imposed exile, initially avoiding prosecution for human rights violations and corruption charges by the new Peruvian authorities. Peru tried to fight corruption while sustaining economic growth at the start of the 21st century, though Fujimorism held power over much of Peruvian society through maintaining control of institutions and legislation created in the 1993 constitution, which
2355-711: A series of bends or oroclines . The Bolivian Orocline is a seaward-concave bending in the coast of South America and the Andes Mountains at about 18° S. At this point, the orientation of the Andes turns from northwest in Peru to south in Chile and Argentina . The Andean segments north and south of the Orocline have been rotated 15° counter-clockwise to 20° clockwise respectively. The Bolivian Orocline area overlaps with
2512-721: A third of the Neuquén flow. Along its way the river receives some sediments from volcanoes Copahue and Domuyo that might sometimes affect the clarity of the otherwise clean waters. After meeting the Agrio, the Neuquén river has no natural lakes that could regulate its flow, which results in sharp raises of level during thawing and rainy periods. A derivative channel towards the Pellegrini Lake in Río Negro Province has been built to compensate for abrupt changes in
2669-634: A typical location for calc-alkalic and subduction volcanism, the Andean Volcanic Belt has a large range of volcano-tectonic settings, such as rift systems, extensional zones, transpressional faults , subduction of mid-ocean ridges , and seamount chains apart from a large range of crustal thicknesses and magma ascent paths, and different amount of crustal assimilations. The Andes Mountains host large ore and salt deposits, and some of their eastern fold and thrust belts act as traps for commercially exploitable amounts of hydrocarbons . In
2826-536: A whole glacier in the ablation area or in the accumulation area . In the high Andes of Central Chile and Mendoza Province , rock glaciers are larger and more common than glaciers; this is due to the high exposure to solar radiation . In these regions, glaciers occur typically at higher altitudes than rock glaciers. The lowest active rock glaciers occur at 900 m a.s.l. in Aconcagua . Though precipitation increases with height, there are semiarid conditions in
2983-725: A zone of volcanic activity that encompasses the Pacific rim of the Americas as well as the Asia-Pacific region. The Andes are the result of tectonic plate processes extending during the Mesozoic and Tertiary eras, caused by the subduction of oceanic crust beneath the South American Plate as the Nazca Plate and South American Plate converge. These processes were accelerated by the effects of climate. As
3140-561: Is a result of the subduction of the Nazca Plate and Antarctic Plate underneath the South American Plate. The belt is subdivided into four main volcanic zones that are separated from each other 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 inside volcanic zones and even between neighboring volcanoes. Despite being
3297-551: Is actively underthrusted beneath the sub-Andes region of Peru, producing thrust faults. In Colombia, Ecuador, and Peru, thrust faulting occurs along the sub-Andes due in response to compression brought on by subduction, while in the high Andes, normal faulting occurs in response to gravitational forces. In the extreme south, a major transform fault separates Tierra del Fuego from the small Scotia Plate . The Andes range has many active volcanoes distributed in four volcanic zones separated by areas of inactivity. The Andean volcanism
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#17327728969813454-510: Is home to many sharks, sperm whales , and whales. The invertebrate fauna is far less inventoried; at least beetles (Coleoptera) have been surveyed in the "Beetles of Peru" project, led by Caroline S. Chaboo, University of Nebraska, USA and this revealved more 12,000 documented and many new species for Peru. Peru also has an equally diverse flora . The coastal deserts produce little more than cacti , apart from hilly fog oases and river valleys that contain unique plant life. The Highlands above
3611-471: Is natural, or the result of clearing which began during the Incan period. Regardless, in modern times , the clearance has accelerated, and the trees are now considered highly endangered , with some believing that as little as 10% of the original woodland remains. The Andes are rich in fauna: With almost 1,000 species, of which roughly 2/3 are endemic to the region, the Andes are the most important region in
3768-534: Is the 19th largest country in the world , and the third largest in South America . Peruvian territory was home to several cultures during the ancient and medieval periods, and has one of the longest histories of civilization of any country, tracing its heritage back to the 10th millennium BCE. Notable pre-colonial cultures and civilizations include the Caral–Supe civilization (the earliest civilization in
3925-594: Is the selva (jungle), a wide expanse of flat terrain covered by the Amazon rainforest that extends east. Almost 60 percent of the country's area is located within this region. The country has fifty-four hydrographic basins, fifty-two of which are small coastal basins that discharge their waters into the Pacific Ocean. The final two are the endorheic basin of Lake Titicaca , and the Amazon basin, which empties into
4082-1596: Is the largest city of all Andean countries. It is the seat of the Andean Community of Nations . La Paz , Bolivia 's seat of government, is the highest capital city in the world, at an elevation of approximately 3,650 m (11,975 ft). Parts of the La Paz conurbation, including the city of El Alto , extend up to 4,200 m (13,780 ft). Other cities in or near the Andes include Bariloche , Catamarca , Jujuy , Mendoza , Salta , San Juan , Tucumán , and Ushuaia in Argentina; Calama and Rancagua in Chile; Cochabamba , Oruro , Potosí , Sucre , Tarija , and Yacuiba in Bolivia; Arequipa , Cajamarca , Cusco , Huancayo , Huánuco , Huaraz , Juliaca , and Puno in Peru; Ambato , Cuenca , Ibarra , Latacunga , Loja , Riobamba , and Tulcán in Ecuador; Armenia , Cúcuta , Bucaramanga , Duitama , Ibagué , Ipiales , Manizales , Palmira , Pasto , Pereira , Popayán , Sogamoso , Tunja , and Villavicencio in Colombia; and Barquisimeto , La Grita , Mérida , San Cristóbal , Tovar, Trujillo , and Valera in Venezuela. The cities of Caracas , Valencia , and Maracay are in
4239-466: The auto-golpe ("self-coup") of 5 April 1992. He then revised the constitution, called new congressional elections, and implemented substantial economic reform, including privatization of numerous state-owned companies, creation of an investment-friendly climate, and sound management of the economy. Nonetheless, these policies did not benefit the poorest much, and inequality persisted despite Fujimori's economic achievements. Fujimori's administration
4396-468: The 2006 elections . In 2006, Alberto Fujimori's daughter, Keiko Fujimori , entered Peru's political arena to continue her father's legacy and espouse Fujimorism. In May 2008, Peru became a member of the Union of South American Nations . In April 2009, former president Alberto Fujimori was convicted of human rights violations and sentenced to 25 years in prison for his role in killings and kidnappings by
4553-404: The 2010 Maule earthquake (M8.8), the 2015 Illapel earthquake (M8.2), and the 1960 Valdivia earthquake (M9.5), which as of 2024 was the strongest ever recorded on seismometers. The amount, magnitude, and type of seismic activity varies greatly along the subduction zone. These differences are due to a wide range of factors, including friction between the plates, angle of subduction, buoyancy of
4710-627: The Americas and Antarctica . The etymology of the word Andes has been debated. The majority consensus is that it derives from the Quechua word anti "east" as in Antisuyu (Quechua for "east region"), one of the four regions of the Inca Empire . The term cordillera comes from the Spanish word cordel "rope" and is used as a descriptive name for several contiguous sections of
4867-456: The Andean cock-of-the-rock , while mixed-species flocks dominated by tanagers and furnariids are commonly seen—in contrast to several vocal but typically- cryptic species of wrens , tapaculos , and antpittas . A number of species such as the royal cinclodes and white-browed tit-spinetail are associated with Polylepis , and consequently also threatened . The Andes Mountains form
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5024-519: The Ayacucho massacre and Juliaca massacre occurring at this time, resulting with the most violence experienced in the nation in over two decades. The strong response by the political elite in Lima raised concerns that they sought to establish an authoritarian or civilian-military government . Peru is located on the central western coast of South America facing the Pacific Ocean. It lies wholly in
5181-457: The COVID-19 pandemic , precipitating the period of unrest beginning in 2022 . The sovereign state of Peru is a representative democratic republic divided into 25 regions . Its main economic activities include mining , manufacturing , agriculture and fishing, along with other growing sectors such as telecommunications and biotechnology . The country forms part of The Pacific Pumas ,
5338-592: The Caribbean Sea off the coast of Venezuela, were formerly thought to represent the submerged peaks of the extreme northern edge of the Andes range, but ongoing geological studies indicate that such a simplification does not do justice to the complex tectonic boundary between the South American and Caribbean plates . The Andes are an orogenic belt of mountains along the Pacific Ring of Fire ,
5495-535: The Cenozoic . Tectonic forces above the subduction zone along the entire west coast of South America where the Nazca Plate and a part of the Antarctic Plate are sliding beneath the South American Plate continue to produce an ongoing orogenic event resulting in minor to major earthquakes and volcanic eruptions to this day. Many high-magnitude earthquakes have been recorded in the region, such as
5652-473: The Grupo Colina death squad during his government's battle against leftist guerrillas in the 1990s. During the presidencies of Ollanta Humala , Pedro Pablo Kuczynski and Martín Vizcarra , the right-wing Congress led by Keiko Fujimori obstructed much of the actions performed by the presidents. On 5 June 2011, Ollanta Humala was elected president, with his cabinet being successfully censured by
5809-537: The Huaca Prieta settlement. Andean societies were based on agriculture, using techniques such as irrigation and terracing ; camelid husbandry and fishing were also important. Organization relied on reciprocity and redistribution because these societies had no notion of market or money. The oldest known complex society in Peru, the Caral/Norte Chico civilization , flourished along the coast of
5966-666: The International Petroleum Corporation (IPC), the North American company that exploited Peruvian oil, and then launched a reform of the state apparatus, an agrarian reform. It was the biggest agrarian reform ever undertaken in Latin America: it abolished the latifunda system and modernized agriculture through a more equitable redistribution of land (90% of the peasants formed cooperatives or agricultural societies of social interest). Land
6123-585: The Plan Verde , which involved the genocide of impoverished and indigenous Peruvians, the control or censorship of the media in Peru , and the establishment of a neoliberal economy controlled by a military junta . Alberto Fujimori assumed the presidency in 1990 and, according to the head of the National Intelligence Service (SIN) Rospigliosi, an understanding was established between Fujimori, Vladimiro Montesinos , and some of
6280-550: The Sapa Inca , to be the " child of the sun ." Atahualpa (or Atahuallpa), the last Sapa Inca , became emperor when he defeated and executed his older half-brother Huáscar in a civil war sparked by the death of their father, Inca Huayna Capac. In December 1532, a party of conquistadors (supported by the Chankas , Huancas , Cañaris and Chachapoyas as Indian auxiliaries ) led by Francisco Pizarro defeated and captured
6437-482: The Southern Hemisphere , its northernmost extreme reaching to 1.8 minutes of latitude or about 3.3 kilometres (2.1 mi) south of the equator , covers 1,285,216 km (496,225 sq mi) of western South America. It borders Ecuador and Colombia to the north, Brazil to the east, Bolivia to the southeast, Chile to the south, and the Pacific Ocean to the west. The Andes mountains run parallel to
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6594-694: The Tropical Andes , the Dry Andes , and the Wet Andes . The Andes are the highest mountain range which is 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
6751-582: The Venezuelan Coastal Range , which is a debatable extension of the Andes at the northern extremity of South America. Cities and large towns are connected with asphalt -paved roads, while smaller towns are often connected by dirt roads, which may require a four-wheel-drive vehicle. The rough terrain has historically put the costs of building highways and railroads that cross the Andes out of reach of most neighboring countries, even with modern civil engineering practices. For example,
6908-626: The War of the Pacific between Chile and the allied Bolivia and Peru, in a diplomatic deal to keep Peru out of the war. The Chilean Army and Chilean Navy defeated the combined forces of Bolivia and Peru, and Chile took over Bolivia's only province on the Pacific Coast, some land from Peru that was returned to Peru decades later. Bolivia has been completely landlocked ever since. It mostly uses seaports in eastern Argentina and Uruguay for international trade because its diplomatic relations with Chile have been suspended since 1978. Because of
7065-458: The War of the Pacific , which lasted until 1884. Bolivia invoked its alliance with Peru against Chile. The Peruvian Government tried to mediate the dispute by sending a diplomatic team to negotiate with the Chilean government, but the committee concluded that war was inevitable. Peruvian historiography is unanimous in maintaining that the deep cause of this war was Chile's ambition to take over
7222-555: The World Trade Organization ; and is considered as a middle power . Peru's population includes Mestizos , Amerindians , Europeans , Africans and Asians . The main spoken language is Spanish , although a significant number of Peruvians speak Quechuan languages , Aymara , or other Indigenous languages . This mixture of cultural traditions has resulted in a wide diversity of expressions in fields such as art , cuisine , literature , and music . The name of
7379-602: 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). The Andes are also part of the American Cordillera , a chain of mountain ranges ( cordillera ) that consists of an almost continuous sequence of mountain ranges that form the western "backbone" of
7536-529: The human rights violations committed in the last years of violence. His Programa Nacional de Población also resulted with the forced sterilization of at least 300,000 poor and indigenous women. In early 1995, once again Peru and Ecuador clashed in the Cenepa War , but in 1998 the governments of both nations signed a peace treaty that clearly demarcated the international boundary between them. In November 2000, Fujimori resigned from office and went into
7693-483: The rodent order, inhabit the Andes' alpine regions. The Andean condor , the largest bird of its kind in the Western Hemisphere , occurs throughout much of the Andes but generally in very low densities. Other animals found in the relatively open habitats of the high Andes include the huemul , cougar , foxes in the genus Pseudalopex , and, for birds, certain species of tinamous (notably members of
7850-597: The war of independence in North America , and Native uprisings all contributed to a favorable climate to the development of emancipation ideas among the C riollo population in South America. However, the Criollo oligarchy in Peru enjoyed privileges and remained loyal to the Spanish Crown. The liberation movement started in Argentina where autonomous juntas were created as a result of the loss of authority of
8007-703: The 1,000-kilometer-wide (620 mi) Drake Passage lie the mountains of the Antarctic Peninsula south of the Scotia Plate , which appear to be a continuation of the Andes chain. The far east regions of the Andes experience a series of changes resulting from the Andean orogeny. Parts of the Sunsás Orogen in Amazonian craton disappeared from the surface of the earth, being overridden by
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#17327728969818164-650: The 1529 Capitulación de Toledo , which designated the newly encountered Inca Empire as the province of Peru. In 1561, the rebel Lope de Aguirre declared himself the "Prince" of an independent Peru, which was cut short by his arrest and execution. Under Spanish rule, the country adopted the denomination Viceroyalty of Peru , which became the Peruvian Republic from its independence until 1979 , when it adopted its current name of Republic of Peru . The earliest evidences of human presence in Peruvian territory have been dated to approximately 12,500 BCE in
8321-481: The 1860s Peru enjoyed a period of stability under the presidency of Ramón Castilla , through increased state revenues from guano exports. In 1864, a Spanish expedition occupied the Chincha Islands (guano producers) and unleashed an international incident with great consequences in Peruvian internal politics, which led to a coup d'état against President Juan Antonio Pezet , Mariano's government. Peru, with
8478-517: The Amazon. The largest lake in Peru , Lake Titicaca between Peru and Bolivia high in the Andes, is also the largest of South America. The largest reservoirs , all in the coastal region of Peru, are the Poechos , Tinajones, San Lorenzo, and El Fraile reservoirs. Although Peru is located entirely in the tropics , the combination of tropical latitude, mountain ranges, topography variations, and two ocean currents ( Humboldt and El Niño ) gives Peru
8635-492: The Americas and considered one of the cradles of civilization ), the Nazca culture , the Wari and Tiwanaku empires, the Kingdom of Cusco , and the Inca Empire , the largest known state in the pre-Columbian Americas. The Spanish Empire conquered the region in the 16th century and Charles V established a viceroyalty with the official name of the Kingdom of Peru that encompassed most of its South American territories, with its capital in Lima . Higher education started in
8792-438: The Americas with the official establishment of the National University of San Marcos in Lima in 1551. Peru formally proclaimed independence from Spain in 1821, and following the military campaigns of Bernardo O'Higgins , José de San Martín , and Simón Bolívar , as well as the decisive battle of Ayacucho , it completed its independence in 1824 . In the ensuing years, the country first suffered from political instability until
8949-405: The Andean peoples are those of the Quechua and Aymara language families. Woodbine Parish and Joseph Barclay Pentland surveyed a large part of the Bolivian Andes from 1826 to 1827. In modern times, the largest cities in the Andes are Bogotá , with a metropolitan population of over ten million, and Santiago , Medellín , Cali , and Quito . Lima is a coastal city adjacent to the Andes and
9106-405: The Andes are tobacco and potatoes . The high-altitude Polylepis forests and woodlands are found in the Andean areas of Colombia , Ecuador , Peru , Bolivia , and Chile . These trees, by locals referred to as Queñua, Yagual, and other names, can be found at altitudes of 4,500 m (14,760 ft) above sea level. It remains unclear if the patchy distribution of these forests and woodlands
9263-446: 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:
9420-401: The Andes end at the Pacific Ocean , although the Peru-Chile trench can be considered their ultimate western limit. From a geographical approach, the Andes are considered to have their western boundaries marked by the appearance of coastal lowlands and less-rugged topography. The Andes also contain large quantities of iron ore located in many mountains within the range. The Andean orogen has
9577-410: The Andes such as the Incas have practiced irrigation techniques for over 6,000 years. Because of the mountain slopes, terracing has been a common practice. Terracing, however, was only extensively employed after Incan imperial expansions to fuel their expanding realm. The potato holds a very important role as an internally-consumed staple crop. Maize was also an important crop for these people, and
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#17327728969819734-471: The Andes varies greatly depending on latitude, altitude, and proximity to the sea. Temperature, atmospheric pressure, and humidity decrease in higher elevations. The southern section is rainy and cool, while the central section is dry. The northern Andes are typically rainy and warm, with an average temperature of 18 °C (64 °F) in Colombia . The climate is known to change drastically in rather short distances. Rainforests exist just kilometers away from
9891-426: The Andes, as well as the entire Andean range, and the combined mountain chain along the western part of the North and South American continents. The Andes can be divided into three sections: At the northern end of the Andes, the separate Sierra Nevada de Santa Marta range is often, but not always, treated as part of the Northern Andes. The Leeward Antilles islands Aruba , Bonaire , and Curaçao , which lie in
10048-403: The Andes. The Sierras de Córdoba , where the effects of the ancient Pampean orogeny can be observed, owe their modern uplift and relief to the Andean orogeny in the Tertiary . Further south in southern Patagonia , the onset of the Andean orogeny caused the Magallanes Basin to evolve from being an extensional back-arc basin in the Mesozoic to being a compressional foreland basin in
10205-414: The Atlantic Ocean. Both are delimited by the Andes mountain range. The Amazon basin is particularly noteworthy as it is the source of the Amazon River, which at 6872 km, is the longest river in the world, and covers 75% of Peruvian territory. Peru contains 4% of the planet's freshwater. Most Peruvian rivers originate in the peaks of the Andes and drain into one of three basins . Those that drain toward
10362-410: The Candeleros rocks, including ancient species of fish, frogs, snakes, turtles, small mammals, and several types of dinosaurs. The best known dinosaur found here is Giganotosaurus carolinii , a carnivorous theropod thought to be larger and faster than Tyrannosaurus rex . The recent discovery of a large deposit of shale gas and oil in the deeper Vaca Muerta formation has made the Neuquén Basin one of
10519-411: The Chimu flourished from about 1140 to 1450. Their capital was at Chan Chan outside of modern-day Trujillo . In the highlands, both the Tiahuanaco culture, near Lake Titicaca in both Peru and Bolivia, and the Wari culture, near the present-day city of Ayacucho , developed large urban settlements and wide-ranging state systems between 500 and 1000 CE. In the 15th century, the Incas emerged as
10676-462: The Devil, who was working "through them to frustrate" their foundations. It only took a generation to convert the population. They built churches in every city and replaced some of the Inca temples with churches, such as the Coricancha in the city of Cusco. The church employed the Inquisition , making use of torture to ensure that newly converted Catholics did not stray to other religions or beliefs, and monastery schools, educating girls, especially of
10833-462: The Fujimorist Congress. Beginning with Pedro Pablo Kuczynski , Congress used broadly interpreted impeachment wording in the 1993 Constitution of Peru that allowed impeachment of the president without cause to place pressure on the president, forcing him to resign in 2018 amid various controversies surrounding his administration. Vice president Martín Vizcarra then assumed office in March 2018 with generally favorable approval ratings as he led
10990-404: The God of the Sun who ruled from a magnificently rebuilt Cusco. From 1438 to 1533, the Incas used a variety of methods, from conquest to peaceful assimilation, to incorporate a large portion of western South America, centered on the Andean mountain ranges, from southern Colombia to northern Chile, between the Pacific Ocean in the west and the Amazon rainforest in the east. The official language of
11147-442: The Inca Emperor Atahualpa in the Battle of Cajamarca . After years of preliminary exploration and military conflicts, it was the first step in a long campaign that took decades of fighting but ended in Spanish victory and colonization of the region known as the Viceroyalty of Peru with its capital at Lima , which was then known as "La Ciudad de los Reyes" (The City of Kings). The conquest of Peru led to spin-off campaigns throughout
11304-529: The Inca nobility and upper class, "until they were old enough either to profess [to become a nun] or to leave the monastery and assume the role ('estado') in the Christian society that their fathers planned to erect" in Peru. Peruvian Catholicism follows the syncretism found in many Latin American countries, in which religious native rituals have been integrated with Christian celebrations. In this endeavor,
11461-490: The Incas were defeated in 1532 by an alliance composed of tens of thousands of allies from nations they had subjugated (e.g. Huancas , Chachapoyas , Cañaris ) and a small army of 180 Spaniards led by Francisco Pizarro . One of the few Inca sites the Spanish never found in their conquest was Machu Picchu , which lay hidden on a peak on the eastern edge of the Andes where they descend to the Amazon. The main surviving languages of
11618-532: The National Library ( in favor of knowledge), the approval of the National Anthem, and the abolition of the mita (in favor of the indigenous people). On December 27, 1821, San Martín created three ministries: Ministry of State and Foreign Affairs, committing Juan García del Río; Ministry of War and Navy , to Bernardo de Monteagudo; and Ministry of Finance, to Hipólito Unanue. From the 1840s to
11775-712: The Neuquén meets the Limay River near the city of Neuquén , to form the Río Negro , which continues its way east towards the Atlantic Ocean. Although not as famous as other fishing rivers in Patagonia, the river is also visited by fly fishing and spinning enthusiasts, as well as the two artificial lakes named Los Barreales and Mari Menuco, located by the river near the border with Río Negro Province. The main catch are trouts and Patagonian pejerrey . In
11932-841: The Pacific Ocean are steep and short, flowing only intermittently. Tributaries of the Amazon River have a much larger flow, and are longer and less steep once they exit the sierra . Rivers that drain into Lake Titicaca are generally short and have a large flow. Peru's longest rivers are the Ucayali , the Marañón , the Putumayo , the Yavarí , the Huallaga , the Urubamba , the Mantaro , and
12089-404: The Pacific Ocean between 3,000 and 1,800 BCE. These early developments were followed by archaeological cultures that developed mostly around the coastal and Andean regions throughout Peru. The Cupisnique culture which flourished from around 1000 to 200 BCE along what is now Peru's Pacific coast was an example of early pre- Inca culture . The Chavín culture that developed from 1500 to 300 BCE
12246-506: The Pacific Ocean. Peru is a megadiverse country , with habitats ranging from the arid plains of the Pacific coastal region in the west, to the peaks of the Andes mountains extending from the north to the southeast of the country, to the tropical Amazon basin rainforest in the east with the Amazon River . Peru has a population of over 32 million, and its capital and largest city is Lima . At 1,285,216 km (496,225 sq mi), Peru
12403-478: The Pacific Ocean; they define the three regions traditionally used to describe the country geographically. The costa (coast), to the west, is a narrow, largely arid plain except for valleys created by seasonal rivers. The sierra (highlands) is the region of the Andes; it includes the Altiplano plateau as well as the highest peak of the country, the 6,768 m (22,205 ft) Huascarán . The third region
12560-519: The Pacific War. The casus belli was the confrontation between Bolivia and Chile over a tax problem in which Peru was compromised by the Treaty of Defensive Alliance signed with Bolivia in 1873. However, Peruvian historiography is unanimous in maintaining that the deep cause of This war was Chile's ambition to take over the nitrate and guano territories of southern Peru.92 In the first stage of the war,
12717-478: The Patagonian Orocline. The western rim of the South American Plate has been the place of several pre-Andean orogenies since at least the late Proterozoic and early Paleozoic , when several terranes and microcontinents collided and amalgamated with the ancient cratons of eastern South America, by then the South American part of Gondwana . The formation of the modern Andes began with
12874-584: The Philippines. The commercial and population exchanges between Latin America and Asia undergone via the Manila Galleons transiting through Acapulco, had Callao at Peru as the furthest endpoint of the trade route in the Americas. In relation to this, Don Sebastian Hurtado de Corcuera , governor of Panama was also responsible for settling Zamboanga City in the Philippines by employing Peruvian soldiers and colonists. African slaves were added to
13031-532: The Spanish government over its colonies. After fighting for the independence of the Viceroyalty of Rio de la Plata, José de San Martín created the Army of the Andes and crossed the Andes in 21 days. Once in Chile, he joined forces with Chilean army General Bernardo O'Higgins and liberated the country in the battles of Chacabuco and Maipú in 1818. On 7 September 1820, a fleet of eight warships arrived in
13188-469: The Treaty, and neither of the countries could determine the statutory framework. The War of the Pacific was the bloodiest war Peru has fought in. After the War of the Pacific, an extraordinary effort of rebuilding began. The government started to initiate a number of social and economic reforms to recover from the damage of the war. Political stability was achieved only in the early 1900s. Internal struggles after
13345-417: The Viceroyalty of Peru. Eventually, the viceroyalty would dissolve, as with much of the Spanish empire, when challenged by national independence movements at the beginning of the nineteenth century. These movements led to the formation of the majority of modern-day countries of South America in the territories that at one point or another had constituted the Viceroyalty of Peru. The conquest and colony brought
13502-517: The anti-corruption constitutional referendum movement. The COVID-19 pandemic resulted with Peru experiencing the highest death rate from COVID-19 in the world, exposing much of the inequality that persisted since the Fujimori administration and triggering an economic crisis that led to Vizcara's removal from the presidency by Congress . Widely seen as a coup by Congress, its head, the newly seated President Manuel Merino , faced protests across
13659-592: The area of the maximum width of the Altiplano Plateau , and according to Isacks (1988) the Orocline is related to crustal shortening . The specific point at 18° S where the coastline bends is known as the Arica Elbow. Further south lies the Maipo Orocline, a more subtle orocline between 30° S and 38°S with a seaward-concave break in the trend at 33° S. Near the southern tip of the Andes lies
13816-432: The authoritarian rule of Alberto Fujimori and Vladimiro Montesinos in the 1990s, with the former's political ideology of Fujimorism leaving a lasting imprint on the country's governance that continues to present day. The 2000s marked economic expansion and poverty reduction, but the subsequent decade revealed long-existing sociopolitical vulnerabilities , exacerbated by a political crisis instigated by Congress and
13973-620: The authorities – to a status equivalent to that of Spanish and established equal rights for natural children. Peru wished to free itself from any dependence and carried out a third-world foreign policy. The United States responded with commercial, economic and diplomatic pressure. In 1973 Peru seemed to triumph over the financial blockade imposed by Washington by negotiating a loan from the International Development Bank to finance its agricultural and mining development policy. The relations with Chile became very tense after
14130-502: The bombings of Tarata and Frecuencia Latina by Sendero Luminoso. Fujimori would also broaden the definition of terrorism in an effort to criminalize as many actions possible to persecute left-wing political opponents. Using the terruqueo , a fearmongering tactic that was used to accuse opponents of terrorism, Fujimori established a cult of personality by portraying himself as a hero and made left-wing ideologies an eternal enemy in Peru. Those incidents subsequently came to symbolize
14287-501: The boundary between those two countries. In a military coup on 29 October 1948, General Manuel A. Odría became president. Odría's presidency was known as the Ochenio . He came down hard on APRA, momentarily pleasing the oligarchy and all others on the right, but followed a populist course that won him great favor with the poor and lower classes. A thriving economy allowed him to indulge in expensive but crowd-pleasing social policies. At
14444-719: The church came to play an important role in the acculturation of the Natives, drawing them into the cultural orbit of the Spanish settlers. By the 18th century, declining silver production and economic diversification greatly diminished royal income. In response, the Crown enacted the Bourbon Reforms , a series of edicts that increased taxes and partitioned the Viceroyalty . The new laws provoked Túpac Amaru II's rebellion and other revolts, all of which were suppressed. As
14601-453: The command of Gregorio Escobedo. Because Peru was the stronghold of the Spanish government in South America, San Martín's strategy to liberate Peru was to use diplomacy. He sent representatives to Lima urging the Viceroy that Peru be granted independence, however, all negotiations proved unsuccessful. The Viceroy of Peru, Joaquín de la Pazuela named José de la Serna commander-in-chief of
14758-407: The contemporary writer Inca Garcilaso de la Vega , son of an Inca princess and a conquistador. He said the name Birú was that of a common Amerindian who was happened upon by the crew of a ship on an exploratory mission for governor Pedro Arias Dávila and went on to relate more instances of misunderstandings due to the lack of a common language. The Spanish crown gave the name legal status with
14915-448: The country in the 1570s with gold and silver mining as its main economic activity and Amerindian forced labor as its primary workforce. With the discovery of the great silver and gold lodes at Potosí (present-day Bolivia) and Huancavelica , the viceroyalty flourished as an important provider of mineral resources. Peruvian bullion provided revenue for the Spanish Crown and fueled a complex trade network that extended as far as Europe and
15072-503: The country may be derived from Birú , the name of a local ruler who lived near the Bay of San Miguel , Panama City, in the early 16th century. Spanish conquistadors , who arrived in 1522, believed this was the southernmost part of the New World . When Francisco Pizarro invaded the regions farther south, they came to be designated Birú or Perú . An alternative history is provided by
15229-589: The country, and after five days, Merino resigned from the presidency. Merino was replaced by President Francisco Sagasti , who led a provisional, centrist government, and enforced many of Vizcarra's former policies. Elections were held on 11 April 2021, and Pedro Castillo of the Free Peru party won the first round, followed closely by Keiko Fujimori, with right-wing parties allied with Fujimori maintaining positions in Congress. On 28 July 2021, Pedro Castillo
15386-460: The country. After the country experienced chronic inflation , the Peruvian sol was replaced by the inti in mid-1985, which itself was replaced by the nuevo sol in July 1991 (the new sol had a cumulative value of one billion old soles). At the end of the 1980s, the per capita annual income of Peruvians fell to $ 720 (below the level of 1960) and Peru's GDP dropped 20%, with national reserves running
15543-789: The coup d'état of the general Pinochet . General Edgardo Mercado Jarrin (Prime Minister and Commander-in-Chief of the Army) and Admiral Guillermo Faura Gaig (Minister of the Navy) both escaped assassination attempts within weeks of each other. In 1975 General Francisco Morales Bermúdez Cerruti seized power and broke with the policies of his predecessor. His regime occasionally participated in Operation Condor in collaboration with other American military dictatorships. President Alan García 's economic policies distanced Peru from international markets further, resulting in lower foreign investment in
15700-399: The dry climate that reduced the disturbing actions of meteoric water . The dry climate in the central western Andes has also led to the creation of extensive saltpeter deposits which were extensively mined until the invention of synthetic nitrates . Yet another result of the dry climate are the salars of Atacama and Uyuni , the former being the largest source of lithium and the latter
15857-532: The dry season (winter) possible and allows the cultivation of frost-resistant vegetable crops like onion and carrot . The Andes rose to fame for their mineral wealth during the Spanish conquest of South America . Although Andean Amerindian peoples crafted ceremonial jewelry of gold and other metals, the mineralizations of the Andes were first mined on a large scale after the Spanish arrival. Potosí in present-day Bolivia and Cerro de Pasco in Peru were among
16014-500: The empire was Quechua , although hundreds of local languages and dialects were spoken. The Inca referred to their empire as Tawantinsuyu which can be translated as "The Four Regions" or "The Four United Provinces." Many local forms of worship persisted in the empire, most of them concerning local sacred Huacas , but the Inca leadership encouraged the worship of Inti , the sun god and imposed its sovereignty above other cults such as that of Pachamama . The Incas considered their King,
16171-501: The establishment of the century-long Inca Empire . This all changed in the 16th century, when the Spanish conquistadors colonized the mountains in advance of the mining economy. In the tide of anti-imperialist nationalism, the Andes became the scene of a series of independence wars in the 19th century, when rebel forces swept through the region to overthrow Spanish colonial rule. Since then, many former Spanish territories have become five independent Andean states. The climate in
16328-705: The events of the Triassic , when Pangaea began the breakup that resulted in developing several rifts . The development continued through the Jurassic Period. It was during the Cretaceous Period that the Andes began to take their present form, by the uplifting , faulting , and folding of sedimentary and metamorphic rocks of the ancient cratons to the east. The rise of the Andes has not been constant, as different regions have had different degrees of tectonic stress, uplift, and erosion . Across
16485-423: The extreme in the slopes near the virtually-lifeless Atacama Desert. About 30,000 species of vascular plants live in the Andes, with roughly half being endemic to the region, surpassing the diversity of any other hotspot . The small tree Cinchona pubescens , a source of quinine which is used to treat malaria , is found widely in the Andes as far south as Bolivia. Other important crops that originated from
16642-517: The few regions outside of the United States where companies are pursuing horizontal drilling and hydraulic fracturing . Andes The Andes ( / ˈ æ n d iː z / 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
16799-461: The fifteenth century, when the pace of conquest began to accelerate, particularly under the rule of the emperor Pachacuti . Under his rule and that of his son, Topa Inca Yupanqui , the Incas came to control most of the Andean region, with a population of 9 to 16 million inhabitants under their rule. Pachacuti also promulgated a comprehensive code of laws to govern his far-flung empire, while consolidating his absolute temporal and spiritual authority as
16956-464: The first parliament was assembled. The newly founded Peruvian Congress named Bolívar dictator of Peru, giving him the power to organize the military. With the help of Antonio José de Sucre , they defeated the larger Spanish army in the Battle of Junín on 6 August 1824 and the decisive Battle of Ayacucho on 9 December of the same year, consolidating the independence of Peru and Upper Peru. Upper Peru
17113-506: The flow, as well as the Cerros Colorados Complex , also used to generate hydroelectricity . The average flow of the river is of 308 cubic metres per second (10,900 cu ft/s) (measured at Paso de Indios), and its drainage basin covers about 50,774 square kilometres (19,604 sq mi). At its mouth at 38°59′34″S 68°00′06″W / 38.9927°S 68.0017°W / -38.9927; -68.0017 ,
17270-672: The following three decades. A final peace treaty in 1929, signed between Peru and Chile called the Treaty of Lima , returned Tacna to Peru. Between 1932 and 1933, Peru was engulfed in a year-long war with Colombia over a territorial dispute involving the Amazonas Department and its capital Leticia . In 1941 Peru and Ecuador fought the Ecuadorian–Peruvian War , after which the Rio Protocol sought to formalize
17427-464: The forelands of the Atacama Desert , some of the largest porphyry copper mineralizations occur, making Chile and Peru the first- and second-largest exporters of copper in the world. Porphyry copper in the western slopes of the Andes has been generated by hydrothermal fluids (mostly water) during the cooling of plutons or volcanic systems. The porphyry mineralization further benefited from
17584-504: The fray and since then became Peru's greatest hero. Almost five years of war ended with the loss of the department of Tarapacá and the provinces of Tacna and Arica , in the Atacama region. Francisco Bolognesi and Miguel Grau are both renowned heros of the war. Originally Chile committed to a referendum for the cities of Arica and Tacna to be held years later, to self determine their national affiliation. However, Chile refused to apply
17741-555: The genus Nothoprocta ), Andean goose , giant coot , flamingos (mainly associated with hypersaline lakes), lesser rhea , Andean flicker , diademed sandpiper-plover , miners , sierra-finches and diuca-finches . Lake Titicaca hosts several endemics, among them the highly endangered Titicaca flightless grebe and Titicaca water frog . A few species of hummingbirds , notably some hillstars , can be seen at altitudes above 4,000 m (13,100 ft), but far higher diversities can be found at lower altitudes, especially in
17898-512: The glaciers were over ten times longer. On the east side of this section of the Mendozina Andes, they flowed down to 2,060 m (6,759 ft) and on the west side to about 1,220 m (4,003 ft) above sea level. The massifs of Aconcagua (6,961 m (22,838 ft)), Tupungato (6,550 m (21,490 ft)), and Nevado Juncal (6,110 m (20,046 ft)) are tens of kilometres away from each other and were connected by
18055-533: The help of Bolivia , Chile and Ecuador , sent a declaration of war on Spain. After the battle of Callao on May 2, 1866, the Spanish Navy withdrew from Peru. The government of José Balta was lavish in infrastructure works (construction of the Central Railway ) although the first signs of excess government spending were already perceived. By the 1870s the guano resources had been depleted, the country
18212-483: The highlands near Cuzco. In the early 19th century, while most South American nations were swept by wars of independence , Peru remained a royalist stronghold. As the elite vacillated between emancipation and loyalty to the Spanish monarchy, independence was achieved only after the occupation by military campaigns of José de San Martín and Simón Bolívar . The economic crises, the loss of power of Spain in Europe,
18369-556: The humid Andean forests (" cloud forests ") growing on slopes in Colombia, Ecuador, Peru, Bolivia, and far northwestern Argentina. These forest-types, which includes the Yungas and parts of the Chocó, are very rich in flora and fauna, although few large mammals exist, exceptions being the threatened mountain tapir , spectacled bear , and yellow-tailed woolly monkey . Birds of humid Andean forests include mountain toucans , quetzals , and
18526-517: The hyperarid Atacama Desert . Rainforests and tropical dry forests used to encircle much of the northern Andes but are now greatly diminished , especially in the Chocó and inter-Andean valleys of Colombia. Opposite the humid Andean slopes are the relatively dry Andean slopes in most of western Peru, Chile, and Argentina. Along with several Interandean Valles , they are typically dominated by deciduous woodland, shrub and xeric vegetation, reaching
18683-472: The labor population to expand the workforce. The expansion of a colonial administrative apparatus and bureaucracy paralleled the economic reorganization. With the conquest started the spread of Christianity in South America; most people were forcefully converted to Catholicism , with Spanish clerics believing like Puritan divines of English colonies later that the Native Peoples "had been corrupted by
18840-555: The larger glaciers descend to sea level. The Andes of Chile and Argentina can be divided into two climatic and glaciological zones: the Dry Andes and the Wet Andes . Since the Dry Andes extend from the latitudes of the Atacama Desert to the area of the Maule River , precipitation is more sporadic, and there are strong temperature oscillations. The line of equilibrium may shift drastically over short periods of time, leaving
18997-410: The loyalist army to protect Lima from the threatened invasion by San Martín. On 29 January, de la Serna organized a coup against de la Pazuela, which was recognized by Spain and he was named Viceroy of Peru. This internal power struggle contributed to the success of the liberating army. To avoid a military confrontation, San Martín met the newly appointed viceroy, José de la Serna, and proposed to create
19154-523: The main crossover of the Andes between Argentina and Chile is still accomplished through the Paso Internacional Los Libertadores . Only recently have the ends of some highways that came rather close to one another from the east and the west been connected. Much of the transportation of passengers is done via aircraft. However, there is one railroad that connects Chile with Peru via the Andes, and there are others that make
19311-532: The military officers involved in Plan Verde to abide by the military's demands prior to Fujimori's inauguration. Fujimori would go on to adopt many of the policies outlined in Plan Verde, which led to a precitious drop in infliation from 7,650% at the start of 1990 to 139% in 1991 and 57% in 1992. When Fujimori faced opposition to his reform efforts, he dissolved Congress, suspending the judiciary, arresting several opposition leaders and assuming full powers in
19468-420: The more outstanding Chimu and Moche . The Moche, who reached their apogee in the first millennium CE, were renowned for their irrigation system which fertilized their arid terrain, their sophisticated ceramic pottery, their lofty buildings, and clever metalwork. The Chimu were the great city builders of pre-Inca civilization; as a loose confederation of walled cities scattered along the coast of northern Peru,
19625-451: The mountain region, which covers almost a third of the country, rain is frequent in summer, and temperature and humidity diminish with altitude up to the frozen peaks of the Andes. The Peruvian Amazon , covering more than half of the total area of Peru, is characterized by heavy rainfall and high temperatures, except for its southernmost part, which has cold winters and seasonal rainfall. Because of its varied geography and climate, Peru has
19782-418: The naval campaign, the Peruvian navy repelled the Chilean attack until October 8, 1879, the day in which the naval combat of Angamos was fought, where the Chilean navy with its ships Cochrane, Blanco Encalada, Loa and Covadonga cornered the monitor Huáscar, the main ship of the Peruvian navy commanded by Admiral AP Miguel Grau, who died in the fray and since then became Peru's greatest hero. In 1879 Peru entered
19939-576: The nearly-7,000-metre (22,966 ft) highest mountains of the Andes. This dry steppe climate is considered to be typical of the subtropical position at 32–34° S. The valley bottoms have no woods, just dwarf scrub. The largest glaciers, for example the Plomo Glacier and the Horcones Glaciers, do not even reach 10 km (6.2 mi) in length and have only insignificant ice thickness. At glacial times, however, c. 20,000 years ago,
20096-442: The nitrate and guano territories of southern Peru and Bolivia. In the first stage of the war, the naval campaign, the Peruvian navy repelled the Chilean attack until October 8, 1879, the day in which the naval combat of Angamos was fought, where the Chilean navy with its ships Cochrane, Blanco Encalada, Loa and Covadonga cornered the monitor Huáscar , the main ship of the Peruvian navy, commanded by Admiral AP Miguel Grau, who died in
20253-471: The opposition-controlled legislature and create an "exceptional emergency government." In response, Congress quickly held an emergency session on the same day, during which it voted 101–6 (with 10 abstentions) to remove Castillo from office and replace him with Vice President Dina Boluarte . She became the country's first female president. Castillo was arrested after trying to flee to the Mexican embassy and
20410-546: The port of Paracas under the command of General José de San Martín and Thomas Cochrane , who was serving in the Chilean Navy. Immediately on 26 October, they took control of the town of Pisco . San Martín settled in Huacho on 12 November, where he established his headquarters while Cochrane sailed north and blockaded the port of Callao in Lima. At the same time in the north, Guayaquil was occupied by rebel forces under
20567-588: The principal mines of the Spanish Empire in the New World. Río de la Plata and Argentina derive their names from the silver of Potosí. Peru Peru , officially the Republic of Peru , is a country in western South America . It is bordered in the north by Ecuador and Colombia , in the east by Brazil , in the southeast by Bolivia , in the south by Chile , and in the south and west by
20724-402: The rainy season (summer), part of the rangeland is used for cropping (mainly potatoes, barley, broad beans, and wheat). Irrigation is helpful in advancing the sowing data of the summer crops, which guarantees an early yield in periods of food shortage. Also, by early sowing, maize can be cultivated higher up in the mountains (up to 3,800 m (12,500 ft)). In addition, it makes cropping in
20881-460: The same connection via southern Bolivia. There are multiple highways in Bolivia that cross the Andes. Some of these were built during a period of war between Bolivia and Paraguay , in order to transport Bolivian troops and their supplies to the war front in the lowlands of southeastern Bolivia and western Paraguay. For decades, Chile claimed ownership of land on the eastern side of the Andes. However, these claims were given up in about 1870 during
21038-492: The same time, however, civil rights were severely restricted and corruption was rampant throughout his regime. Odría was succeeded by Manuel Prado Ugarteche . However, widespread allegations of fraud prompted the Peruvian military to depose Prado and install a military junta, via a coup d'état led by Ricardo Pérez Godoy . Godoy ran a short transitional government and held new elections in 1963, which were won by Fernando Belaúnde Terry who assumed presidency until 1968. Belaúnde
21195-486: The satellite image, the deep reds of the Candeleros Formation, a sequence of sandstones formed roughly 90 to 100 million years ago in a braided river system, dominate the landscape. These rocks are flanked in some areas, especially near the river, by a green-yellow sequence of rocks that are part of the younger Hunical Formation, formed during drier times. Paleontologists have uncovered numerous fossils in
21352-721: The snow-covered peak of Cotopaxi . The mountains have a large effect on the temperatures of nearby areas. The snow line depends on the location. It is between 4,500 and 4,800 m (14,764 and 15,748 ft) in the tropical Ecuadorian, Colombian, Venezuelan, and northern Peruvian Andes, rising to 4,800–5,200 m (15,748–17,060 ft) in the drier mountains of southern Peru and northern Chile south to about 30°S before descending to 4,500 m (14,760 ft) on Aconcagua at 32°S , 2,000 m (6,600 ft) at 40°S , 500 m (1,640 ft) at 50°S , and only 300 m (980 ft) in Tierra del Fuego at 55°S ; from 50°S, several of
21509-423: The split of the viceroyalty and the creation of new viceroyalties of New Granada and Rio de la Plata at the expense of the territories that formed the Viceroyalty of Peru ; this reduced the power, prominence and importance of Lima as the viceroyal capital and shifted the lucrative Andean trade to Buenos Aires and Bogotá , while the fall of the mining and textile production accelerated the progressive decay of
21666-526: The subducting plate, rate of subduction, and hydration value of the mantle material. The highest rate of seismic activity is observed in the central portion of the boundary, between 33°S and 35°S. In this area, the angle of subduction is very low, meaning the subducting plate is nearly horizontal. Studies of mantle hydration across the subduction zone have shown a correlation between increased material hydration and lower-magnitude, more-frequent seismic activity. Zones exhibiting dehydration instead are thought to have
21823-637: The subduction of the Nazca Plate and the Antarctic Plate . To the east, the Andes range is bounded by several sedimentary basins , such as the Orinoco Basin , the Amazon Basin , the Madre de Dios Basin, and the Gran Chaco , that separate the Andes from the ancient cratons in eastern South America. In the south, the Andes share a long boundary with the former Patagonia Terrane . To the west,
21980-452: The tortuous terrain in places, villages and towns in the mountains—to which travel via motorized vehicles is of little use—are still located in the high Andes of Chile, Bolivia, Peru, and Ecuador . Locally, the relatives of the camel , the llama , and the alpaca continue to carry out important uses as pack animals, but this use has generally diminished in modern times. Donkeys , mules , and horses are also useful. The ancient peoples of
22137-422: The uplift of the Andes created a rain shadow on the western fringes of Chile, ocean currents and prevailing winds carried moisture away from the Chilean coast. This caused some areas of the subduction zone to be sediment-starved, causing excess friction and an increased rate of compressed coastal uplift. The main cause of the rise of the Andes is the compression of the western rim of the South American Plate due to
22294-639: The viceroyalty as well as expeditions towards the Amazon Basin as in the case of Spanish efforts to quell Amerindian resistance. The last Inca resistance was suppressed when the Spaniards annihilated the Neo-Inca State in Vilcabamba in 1572. The Indigenous population dramatically collapsed overwhelmingly due to epidemic diseases introduced by the Spanish as well as exploitation and socio-economic change. Viceroy Francisco de Toledo reorganized
22451-587: The war were followed by a period of stability under the Civilista Party , which lasted until the onset of the authoritarian regime of Augusto B. Leguía . The Great Depression caused the downfall of Leguía, renewed political turmoil, and the emergence of the American Popular Revolutionary Alliance (APRA). The rivalry between this organization and a coalition of the elite and the military defined Peruvian politics for
22608-426: 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,
22765-642: The world for amphibians . The diversity of animals in the Andes is high, with almost 600 species of mammals (13% endemic), more than 1,700 species of birds (about 1/3 endemic), more than 600 species of reptiles (about 45% endemic), and almost 400 species of fish (about 1/3 endemic). The vicuña and guanaco can be found living in the Altiplano , while the closely related domesticated llama and alpaca are widely kept by locals as pack animals and for their meat and wool . The crepuscular (active during dawn and dusk) chinchillas , two threatened members of
22922-470: The world's largest reserve of the element. Early Mesozoic and Neogene plutonism in Bolivia's Cordillera Central created the Bolivian tin belt as well as the famous, now-mostly-depleted, deposits of Cerro Rico de Potosí . The Andes Mountains, initially inhabited by hunter-gatherers , experienced the development of agriculture and the rise of politically centralized civilizations , which culminated in
23079-423: Was charged with the crime of rebellion. The Boluarte government proved unpopular as she allied herself with the right-wing Congress and the military, betraying her constituents. This resentment led to the 2022–2023 Peruvian political protests , which sought the removal of Boluarte and Congress, immediate general elections and the writing of a new constitution. Authorities responded to the protests violently, with
23236-502: Was dogged by insurgent groups, most notably Shining Path, which carried out attacks across the country throughout the 1980s and 1990s. Fujimori cracked down on the insurgents and was successful in largely quelling them by the late 1990s, but the fight was marred by atrocities committed by both the Peruvian security forces and the insurgents: the Barrios Altos massacre and La Cantuta massacre by Government paramilitary groups, and
23393-687: Was forged during this period, as Bolivarian projects for a Latin American Confederation floundered and a union with Bolivia proved ephemeral. Simón Bolívar launched his campaign from the north, liberating the Viceroyalty of New Granada in the Battles of Carabobo in 1821 and Pichincha a year later. In July 1822, Bolívar and San Martín gathered in the Guayaquil Conference . Bolívar was left in charge of fully liberating Peru while San Martín retired from politics after
23550-543: Was heavily indebted, and political in-fighting was again on the rise. By 1859, some 41,000 Peruvians had died in the constant civil wars that shook the country since 1829. Thanks to the money from the sale of guano, Peru began to modernize with different public works such as railways; the civil and military bureaucracy grew; The indigenous people stopped paying tribute and the slaves achieved their freedom; The migration policy of Germans, Austrians, Irish and Italians began. On April 5, 1879, Chile declared war on Peru, unleashing
23707-530: Was later established as Bolivia. During the early years of the Republic, endemic struggles for power between military leaders caused political instability. Once independence was proclaimed, San Martín assumed military-political command of the free departments of Peru, under the title of Protector, according to a decree given on August 3, 1821. 74 The works of the Protectorate contributed to the creation of
23864-577: Was probably more of a religious than a political phenomenon, with their religious center in Chavín de Huantar . After the decline of the Chavin culture around the beginning of the 1st century CE, a series of localized and specialized cultures rose and fell, both on the coast and in the highlands, during the next thousand years. On the coast, these included the civilizations of the Paracas , Nazca , Wari , and
24021-432: Was recognized for his commitment to the democratic process. On 3 October 1968 another coup d'état led by a group of officers led by General Juan Velasco Alvarado brought the army to power with the aim of applying a doctrine of "social progress and integral development", nationalist and reformist, influenced by the CEPAL theses on dependence and underdevelopment. Six days after the golpe, Velasco proceeded to nationalize
24178-434: Was sworn in as the new president of Peru after a narrow win in a tightly contested run-off election. That same year, Peru celebrated the bicentenary of independence . Castillo faced multiple impeachment votes during his presidency from the right-wing controlled Congress and on 7 December 2022, just hours before Congress was set to begin a third impeachment effort , Castillo tried to prevent this by attempting to dissolve
24335-431: Was to be owned by those who cultivated it, and large landowners were expropriated. The only large properties allowed were cooperatives. Between 1969 and 1976, 325,000 families received land from the state with an average size of 73.6 acres (29.8 hectares). The "revolutionary government" also planned massive investments in education, elevated the Quechua language – spoken by nearly half the population but hitherto despised by
24492-408: Was used for the production of chicha , important to Andean native people. Currently, tobacco , cotton , and coffee are the main export crops. Coca , despite eradication programs in some countries, remains an important crop for legal local use in a mildly stimulating herbal tea , and illegally for the production of cocaine . In unirrigated land, pasture is the most common type of land use. In
24649-580: Was written by Fujimori and his supporters without opposition participation. In spite of human rights progress since the time of insurgency, many problems are still visible and show the continued marginalization of those who suffered through the violence of the Peruvian conflict. A caretaker government presided over by Valentín Paniagua took on the responsibility of conducting new presidential and congressional elections. Afterwards Alejandro Toledo became president in 2001 to 2006. On 28 July 2006, former president Alan García became President of Peru after winning
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