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Chaco (Paraguay)

From Wikipedia, the free encyclopedia

Paraguayan Chaco, represented in light green.

The Paraguayan Chaco or Región Occidental (Western Region) is a semi-arid region in Paraguay, with a very low population density.[citation needed] The area is being rapidly deforested.[1] Consisting of more than 60% of Paraguay's land area, but with less than 3% of the population, the Chaco is one of the most sparsely inhabited areas in South America.

The surrounding Gran Chaco area is also a large geographic area that is sparsely populated. Many of those living in the region are indigenous. It covers the departments of Boquerón, Alto Paraguay and the Department of Presidente Hayes, Paraguay.

The Chaco region was the scene of the longest territorial war to occur in South America; an armed conflict between Paraguay and Bolivia, lasting from 1932 to 1935. It is also home to sites of historical significance that have been preserved, including Boquerón, Campo Grande, Via Campo, Nanawa, the site of the battle of Cañada Strongest, Carmen, Kilometro 7, Picuiba, and Villamontes, amongst others.

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The Paraguayan Chaco is located between the Pilcomayo and Paraguay Rivers, which provide saline soils that attract a rich variety of plants and animals. Its boundaries are the border with Argentina along the Pilcomayo River to the west; the border with Brazil over the mouth of Apa River to the south-east; is the border with Bolivia to the north; and the border with the Región Oriental (Eastern Region) to the south.

Indigenous peoples of the Paraguayan Chaco

Indigenous mother and child in the Paraguayan Chaco

The majority of the Indigenous peoples in Paraguay live in the Chaco. These include the following groups:

The language groups and their locations are as follows:


The Chaco has an abundance of wildlife. Larger animals present in the region include jaguar, ocelot, puma, tapir, giant armadillo, giant anteater, many species of foxes, numerous small wildcats, the agouti (a large rodent), the capybara (water hog), the maned wolf, the palustrian deer, peccaries, including the endemic Chacoan peccary, and the guanaco (the wild relative of the llama). The region has an abundant and varied bird population and one of the largest populations of the greater rhea (or nandu), a large flightless South American bird. The streams host more than 400 fish species, among which are the salmon-like dorado and the flesh-eating piranha. The region is home to many species of insects, some of which cause discomfort for travellers. Reptiles also are abundant, with numerous lizards and at least 60 known species of snakes, including many pit vipers and constrictors. The region is also home to many unique amphibians, including the iconic waxy monkey tree frog Phyllomedusa sauvagii that produces a waxy secretion to prevent drying out and coraline frog Leptodactylus laticeps that spends the dry season deep in a burrow, emerging with the rains to feed on other frogs.


Chaco Boreal, Paraguay

The vegetation of the Chaco varies from the east to the west, reflecting the changing nature of the soil. Eastern Chaco is noted for its park-like landscape of clustered trees and shrubs interspersed with tall, herbaceous savannahs. To the west, a wide transition zone grades into the espinal, a dry forest of spiny, thorny shrubs and low trees. Chaco's vegetation has adapted to grow in arid conditions, and is highly varied and exceedingly complex. One of the most impressive vegetation formations is called the quebrachales, which consists of vast, low hardwood forests where various species of quebracho trees are dominant. The quebracho tree is economically important as a source of tannin and lumber. These forests cover extensive areas away from the rivers; nearer the rivers they occupy the higher, better-drained sites, giving rise to a landscape in which the forests appear as islands amid a sea of savannah grasses growing as high as a person on horseback. In the more arid western Chaco, thorn forests, the continuity of which is occasionally broken by palm groves, saline steppes, and savannas, created by fire or deforestation, are dominated by another quebracho tree that has a lower tannin content and is used most often for lumber.

Lagoon in the Paraguayan Chaco.

There is also a marked increase in the number and density of thorny species, among which the notorious vinal (Prosopis ruscifolia) was declared a national plague in Argentina because of how its thorns, up to a foot in length, posed a livestock hazard in the agricultural lands it invaded.

Main features

Ecotourism remains a potential industry for the region because of its rich biodiversity, allowing for a similar type of ecotourism seen in the Amazon.

The region remains of interest to hunting enthusiasts. It also hosts the annual Trans Chaco Rally, a prominent automobile race, which is considered one of the most difficult the continent,[by whom?] mainly because of the dusty and dry roads which comprise its routes, and the extreme heat.

Chaco is known for its cultural, religious and economic diversity. The Indigenous peoples of the Gran Chaco maintain their cultures, particularly in the northern Chaco. Northern Chaco is also known as an ideal place to purchase indigenous fine crafts. In the forest reserves, the Sanapaná and Nivaclé peoples speak Sanapaná and Nivaclé languages, respectively.

The karanda'y is the material used for the manufacture of handbags, wallets, vases, porta tereré (bags to hold thermos flasks for tereré, the typical summer drink) carrying baskets and mats. The natives are experts in natural medicine. The thorny varieties of plants are replacing the trees with deciduous leaves in these areas.

Chaco also offers an excellent option for rural tourism. One place offering rural tourism opportunities is the area Estancia La Patria, Department of Boquerón, Colony Neuland, which was created by the national government with the aim of boosting the development of this area of the country. It is located 110 kilometers from Infante Rivarola, a military post located on the border with Bolivia.

The Chaco area is famous for the large number of hunters who visit, despite a ban on hunting of endangered animals.

It is a high floodplain with a gentle slope to the east, and experiences relatively little rainfall (400 mm/year). Some areas are flooded occasionally, during which time the appearance of species adapted to such an environment is seen. The soils in the region are salty, and their use is limited because of their aridity. The Chaco is irrigated by the rivers Pilcomayo and Paraguay, both of which sprout many tributaries.

National parks

  • National Park Defensores del Chaco - 7800 km²
  • National Park Tinfunqué - 2800 km²
  • National Park Teniente Enciso - 400 km²

Main cities

Filadelfia is of great importance to the region's economy, mainly because of its lucrative dairies.


  1. ^ Greenwood, Mike. "Swimming with taco Piranhas". BBC Radio. Retrieved 2012-07-28.
  2. ^ a b c d e f g h i "Native American Tribes of Paraguay." Native Languages. (retrieved 12 July 2011)
  3. ^ a b c d "Paraguay." Countries and Their Cultures. Retrieved 3 August 2012.


  • La magia de mi Tierra. Fundación en Alianza. 2007 (in Spanish)

PARAGUAYAN CHACO FAUNA PARAGUAY. (n.d.). Retrieved April 13, 2016, from

External links

See also

22°06′21.1″S 59°15′23.9″W / 22.105861°S 59.256639°W / -22.105861; -59.256639

This page was last edited on 2 December 2023, at 17:02
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