Large Río (Mendoza)
See also: Rio Grande
The Río Grande is an important river of the south-west of the Argentine, which runs entirely in the province of Mendoza, Département of Malargüe. It is with the Río Barrancas one of the two main branches of the Río Colorado, clearly most abundant. It is indeed responsible moreover of the three-quarters of the flow of this last. Its basin is much wider besides than that of Río Barrancas. In spite of that, it is Río Barrancas which is regarded as principal course of Río Colorado.
Flow
Its current medium flow at the station of Estrachura is of 34,81 m ³. Downstream, close to its confluence with Río Barrancas, with Gotera, it is of 110,7 m ³ a second, which makes of him the most important river of the province (medium flow measured of 1971 to 2004).
Description and affluents
Río Grande is born in the Andes cordillera from the union from two rivers: the río Cobre and the río Tordillo. It sprinkles the valley of Las Leñas and moves towards the south-south-east. It receives right-sided (west) a series of rivers resulting from the Andes, whose río Valenzuela, born on the Eastern sides of the volcanos Peteroa and Planchón and who brings to him a flow of 9,9 m ³. In its catchment area, precipitations are about 400 to 600 mm per annum. The surface of this basin is about 8 000 km ². Its confluence with Río Barrancas is at an altitude of 835 meters.
The mode of the river is almost exclusively nival.
External bonds
-
Chart of the province of Mendoza - Río Grande is in the extreme south-west
- the Colorado river and its basin
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