Caroní River

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Caroni River
Origin Confluence of the Kuquenan- and the Yuruani Rivers
Mouth Orinoco River in Ciudad Guayana
Length 952 km (592 mi)
Source elevation 2650
Avg. discharge 4,850 m3/s (171,000 cu ft/s)Orinoco River in Ciudad Guayana
Basin area 95,000 km2 (37,000 sq mi)

The Caroni River is the second most important river of Venezuela, the second in flow, and one of the longest, 952km from the Tepui Kuquenan, where it originates with the same name Kuquenan, up to its confluence with the River Orinoco to which it belongs. The name "Caroni" is applied starting from the confluence of the Kuquenan with the Yuruani, at 182km from the source of the Kuquenan and 770km from its discharge in the Orinoco. The meeting takes place in the south of Venezuela, in the Bolivar State, being the most important tributary of the Orinoco, mostly because of the high discharge rate. The higher basin of the Caroni is situated in the Gran Sabana (Canaima National Park) close to the border with Brazil.

Hydraulic regime[edit]

Confluence of Caroní River (on the background), a blackwater river with the Orinoco river, a white-water river

The Caroni is one of the rivers with the highest discharge rates in the world, with respect to the area of its basin. The average discharge is 4,850m3/s, with variations caused by the wet/dry seasons. The average maximum discharge is 6,260m3/s and the average minimum is 3,570m3/s. Among the historic extremes are 17,576m3/s. The Caroni supplies 15.5% of the discharge of the Orinoco river. One of the characteristics of Caroni's water is the dark color, caused by the high amount of humic acids due to the incomplete decomposition of the phenol content of the vegetation. The Caroni therefore belongs to the blackwater rivers, as does the Negro River, or Rio Negro in Brazil, Venezuela and Colombia. In the late 1940s diamonds were found in the Caroni basin near the famous Lost World Region which then was accessible due to aircraft and four wheel drive vehicles.[1]

The Basin of the Caroni[edit]

The Caroni basin covers an area of 95,000;km2 and is part of the Orinoco basin, the most important river of Venezuela. This means for the two big rivers that they have very similar hydrographic characteristics. The Caroni itself and its tributary the Paragua are rivers with a staircase, in the sense that many falls and rapids are alternated with stretches with gentle slopes, with many meanders and oxbow lakes (naturally cut off meanders). Among the most important falls of these rivers and their tributaries may be mentioned the Angel Falls, with the highest free fall of the world (almost 1000m) and the Cuquenan Falls, the tenth on the world scale with (610m free fall, and many others with less height but with a high volume of water, like the Aponwao Falls and the Caruay Falls and rivers with these names: the Toron River, the Eutobarima River, the falls of the Llovizna River and the Cachamay River, these last three in the Caroni itself and the last just before its discharge into the Orinoco.

Hydroelectric power[edit]

The Caroní River and the Guri Reservoir

Because of its high discharge rate, with a yearly average of 4,850m3/s and a steep slope, the Caroni ideally suited for the generation of hydroelectric energy with four plants along its course (Macagua I, II and III), near its mouth, the Caruachi, some 30km aback, and lastly the plant of Guri, in the middle of Necoima or Necuima, some 80km from Puerto Ordaz. This plant has its reservoir, with an area of 4000km2, in the middle of the river, and has a power of 10,000MW, and is now the third biggest in the world, after the Three Gorges dam in China (22,500 MW) and the Itaipu Dam in Paraguay and Brazil (14,000 MW)

National Parks[edit]

In the high basin of the rivers that form the Caroni (Aponguao, Cuquenán and Yuruaní) the Gran Sabana is spread out, partly belonging to the Canaima National Park.

Tourism[edit]

The basin of the Caroni is one of the most spectacular and beautiful of the world, ideal for adventure tourism: a landscape of forests and savannah, innumerable waterfalls and cataracts, deep canyons and high plateaux, fast running streams with very clean water (darkly tinted, almost black when deep, blackwater river, beaches with pink sand, etc. Among the most notable of the basin of the Caroni, speaking for tourists, are the waterfalls of the Aponguao, of the Kama (Kama Meru in the Caribbean language) pemon, Eutobarima (in the Caroni itself, although not easily accessible), the lake and the plant of Guri, the parks of the waterfall and of the gorge of Kavak, the table mountains(tepuis) of the Roraima and the Kuquenan.

References[edit]

  1. ^ "Treasure Hunt In A Lost World." Popular Mechanics, September 1950, pp. 73-79.

Coordinates: 8°20′43″N 62°43′09″W / 8.34528°N 62.71917°W / 8.34528; -62.71917