Río Velille
Río Velille upper course: Río Huerta, Río Cayarani |
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Data | ||
location | Peru | |
River system | Amazon | |
Drain over | Río Apurímac → Río Ene → Río Tambo → Río Ucayali → Amazon → Atlantic | |
Headwaters |
Cordillera Huanzo , Western Cordillera 14 ° 55 ′ 30 ″ S , 72 ° 18 ′ 15 ″ W |
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Source height | approx. 5000 m | |
muzzle |
Río Apurímac Coordinates: 13 ° 49 ′ 54 ″ S , 71 ° 56 ′ 25 ″ W 13 ° 49 ′ 54 ″ S , 71 ° 56 ′ 25 ″ W. |
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Mouth height | approx. 2560 m | |
Height difference | approx. 2440 m | |
Bottom slope | approx. 13 ‰ | |
length | approx. 195 km | |
Catchment area | approx. 3700 km² | |
Outflow A Eo : 3700 km²
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MQ Mq |
45 m³ / s 12.2 l / (s km²) |
Right tributaries | Río Chilloroya | |
Small towns | Velille | |
Communities | Cayarani, Chamaca |
The Río Velille (in the upper reaches: Río Huerta and Río Cayarani ) is an approximately 195 km long left tributary of the Río Apurímac in the regions of Arequipa and Cusco in south-central Peru .
River course
The Río Velille rises in the province of Condesuyos (Arequipa region) in the east of the Cordillera Huanzo , a mountain range of the Peruvian western cordillera , at an altitude of about 5000 m . The Río Velille initially flows almost 50 km in a predominantly east-northeast direction to the confluence of the Río Palca from the south. In this section, the river is also called Río Huerta . The river then turns north. At river km 126 it passes the village of Cayarani on the right bank of the river . At river kilometer 100 the small town of Velille is on the right bank of the river. Up to that point the river is also called Río Cayarani . The Río Velille flows through the Andes highlands in a narrow gorge in a northerly direction. At river kilometer 68, the Río Chilloroya meets the Río Velille from the right. The village of Chamaca is located above the confluence . For the last 30 kilometers, the river turns north-northwest before flowing into the Río Apurímac.
Catchment area and hydrology
The catchment area of the Río Velille covers an area of 3700 km². The catchment area borders on that of the Río Livitaca to the east and that of the Río Santo Tomás to the west . The rivers flow into the Río Apurímac above and below the Río Velille. Beyond the Cordillera Huanzo, which runs along the continental divide , lies the catchment area of the Río Ocoña in the southwest and that of the Río Camaná (also Río Colca ) in the south . Both rivers flow to the Pacific Ocean . The mean discharge of the Río Velille is 45 m³ / s.