San Pedro de Inacaliri River

San Pedro de Inacaliri River, or called simply San Pedro River, is a river of Chile located in El Loa Province, Antofagasta Region. It begins at the confluence of the rivers Silala and Cajón, at an elevation over 4,000 m asl.

San Pedro de Inacaliri River
San Pedro River and Paniri volcano
Location
CountryChile
Physical characteristics
Mouth 
  location
Loa River
Length76 km (47 mi)
Basin size9,850 km2 (3,800 sq mi)
Discharge 
  average0.2 m3/s (7.1 cu ft/s)
Basin features
Tributaries 
  leftSilala River

A part of its flow is diverted (between 50 and 60 L/s) and conducted across the desert to Chuquicamata for domestic water supply. About 8 km south, the waters of the river disappear in a floodplain area to reappear 15 km downstream at the so-called Ojos del San Pedro in the form of a partially overground stream, at the eastern border of a salt flat with a surface of 5 km2.

Loa and its tributaries San Pedro, Silala and Salado Rivers

Before discharging into Loa River, the river skirts the San Pedro volcano, where it has carved a 100-m-deep canyon through a rhyolite lava flow.

References

    • This article draws heavily on the corresponding article in the Spanish-language Wikipedia, accessed August 31, 2007.
    • Niemeyer, Hans; Cereceda, Pilar (1983). Geografía de Chile — Tomo VIII: Hidrografía (1º edición, Santiago de Chile: Instituto Geográfico Militar ed.).


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