The Mamoré is a large river in

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and Bolivia which unites with the

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to form the Madeira, one of the largest tributaries of the

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. It rises on the northern slope of the Sierra de Cochabamba, east of the city of

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, and is known as the Chimoré down to its junction with the Chapare. Its larger tributaries are the Chapare,

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, Apere, and Yacuma from the west, and the Ichilo, Guapay, Ivari, Manique and Guapore from the east. Taking into account its length only, the Guapay should be considered the upper part of the Mamore; but it is shallow and obstructed, and carries a much smaller volume of water. The Guapore also rivals the Mamore in length and volume, having its source in the Parecis plateau, Mato Grosso, Brazil, a few miles from streams flowing north-ward to the Tapajos and Amazon, and southward to the

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and Paraná rivers. The Mamore is interrupted by rapids a few miles above its junction with the Beni, but a railway 300 km long has been undertaken from below the rapids of the Madeira. Above the rapids the river is navigable to Chimore, at the foot of the sierra, and most of its tributaries are navigable for long distances. In 1874, Franz Keller gave the outflow of the Mamoré at mean water level, and not including the Guapore, as 41,459 cm³/sec (2,530 cub. in. per second), and the area of its drainage basin, also not including the Guapore, as 24,299 km² (9,382 square miles).Franz Keller, ''The Amazon and Madeira Rivers'', (New York , 1874) An extensive pre-Columbian civilization existed in the basin of the Mamore River in the swampy area known as the

Llanos de Moxos The Beni savanna, also known as the Llanos de Moxos or Moxos plains, is a tropical savanna ecoregion of the Beni Department of northern Bolivia. Setting The Beni savanna covers an area of in the lowlands of northern Bolivia, with small portio ...

References

* * Edward D. Mathews, ''Up the Amazon and Madeira Rivers'' (London, 1879). {{DEFAULTSORT:Mamore River Rivers of Cochabamba Department Rivers of Beni Department Rivers of Santa Cruz Department (Bolivia)

See also

References