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Arque River
Rio Arque is one of the headwaters of Rio Grande and Mamore River in Bolivia.
Rio Arque has its source in the Cordillera Tres Cruces on the western slope of Cerro Huaylluma at , 50 km northeast of the mining city Oruro and 65 km southwest of Cochabamba.
The river flows 50 km in a southeasterly direction before it turns northeast. At kilometer 58 there is the provincial capital Arque on the northern bank of the river, at kilometer 72 Estancia Umani on the southern bank, and at kilometer 85 the town of Capinota on the northern bank.
The watershed of Rio Arque comprises 2.224 km. At Capinota, the base flow of the river is 2 to 2.5 m/s. However, when the river rises during the rainy season (November-April), the flow can be up to 900 m/s. The sediments which Rio Arque carries in the rainy season can be up to 120 g/l.
After a total of 88 km Rio Arque joins Rio Rocha at at an elevation of 2,350 m to form Rio Caine. Rio Caine after another 162 km merges into Rio Grande which after a total of 1,438 km from the source of Rio Rocha joins Rio Ichilo.
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article Arque River
