Rio Roosevelt
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Rio Roosevelt Rio da Dúvida |
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 Catchment area of the Rio Madeira with the Rio Roosevelt on the top right. |
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| Data | ||
| location |
 Brazil
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| River system | Amazon | |
| Drain over | Rio Aripuanã → Rio Madeira → Amazon → Atlantic | |
| Headwaters | 10 km north of Vilhena 12 ° 38 ′ 33 ″ S , 60 ° 8 ′ 20 ″ W |
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| Source height | approx. 600 m | |
| muzzle |
Rio Aripuanã coordinates: 7 ° 34 ′ 31 ″ S , 60 ° 40 ′ 33 ″ W 7 ° 34 ′ 31 ″ S , 60 ° 40 ′ 33 ″ W. |
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| Mouth height | 34 m | |
| Height difference | approx. 566 m | |
| Bottom slope | approx. 0.75 ‰ | |
| length | approx. 750 km | |
| Catchment area | approx. 35,000 km² | |
| Left tributaries | Río Branco, Río Madeirinha | |
| Right tributaries | Rio Capitão Cardoso | |
The Rio Roosevelt is a left tributary of the Rio Aripuanã in the Brazilian Amazon . It is about 750 km long.
River course
The Rio Roosevelt has its source 10 km north of Vilhena in the state of Rondônia at an altitude of about 600 m . The Rio Roosevelt flows north through the Amazon basin. The middle section of the river is in the state of Mato Grosso , the lower in the state of Amazonas . The Campos Amazônicos National Park is located on the lower reaches . There are strong rapids and waterfalls on the Rio Roosevelt .
history
The river was discovered in 1909 by the Brazilian adventurer Cândido Rondon , who gave it the name Rio da Dúvida ("River of Doubt") at the time. 1913-1914 Rondon sought the river again. The aim of this second expedition, known as the Roosevelt-Rondon Expedition , was to clarify whether the Rio da Dúvida flows into the Amazon . Rondon was accompanied by former US President Theodore Roosevelt , in honor of whom he renamed the river.
Since the pronunciation of "Roosevelt" is problematic in the lusophone world, the Rio Roosevelt is sometimes referred to as the Rio Teodoro .
The largest tributaries
The largest tributaries include (downstream):
- Tenente Marques (right)
- Río Branco (left)
- Río Madeirinha (left)
Individual evidence
- ^ Kümmerly + Frey Rand McNally : International Atlas . Published by Georg Westermann Verlag ISBN 3-07-508962-1