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The 'Aconcagua River' is a river in Chile that rises from the joint of two minor tributary rivers at 1430 metres over sea level in the Andes, Juncal river from the east (which rise in the Juncal mountain) and Blanco river from the south east. Aconcagua river flows eastward through a broad valley, the Valle del Aconcagua (Aconcagua's Valley), and enters the Pacific ocean 20 km north of Valparaíso.
The river has a course of about 142 km (88 mi), and its waters irrigate the most populous sections of the Chilean provinces of San Felipe de Aconcagua and Los Andes, being the most important economic resource of those regions. During the course of the Aconcagua river, it receives the contribution of many others rivers and swamps, reaching a mean flow of 39 m³/s.

Although it has the same name, Aconcagua river does not rise in the slopes of the mount Aconcagua, which is entirely in Argentina about 20 km from the beginning of the river, in the Chilean territory.

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References

References

★ Niemeyer, Hans; Cereceda, Pilar (1983), Geografía de Chile — Tomo VIII: Hidrografía, 1º edición, Santiago de Chile: Instituto Geográfico Militar.

★ Gobierno de Chile, Ministerio de Obras Públicas, Dirección General de Aguas (2004) Cuenca del Río Aconcagua, Diagnóstico y Clasificación de los Cursos y Cuerpos de Agua Según Objetivos de Calidad

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