San Juan River (Colombia)

Río San Juan
Rivers in Colombia. The mouth of the San Juan is near the center of the country's Pacific coast
Location
Country	Colombia
Region	Chocó Department
Physical characteristics

Source
• location	Cerro Caramanta, West Andes

Mouth
• location	Pacific Ocean near Buenaventura
Length	380 km (240 mi)

The San Juan River (Spanish: Río San Juan) is a Colombian river that flows into the Pacific Ocean through the Chocó Department. It is approximately 380 kilometres (240 mi) and drains a watershed of 16,000 square kilometres (6,200 sq mi). The river drains into a large delta that covers nearly 300 square kilometres (120 sq mi). The average discharge of the Rio San Juan is 2,054.67 m³/s.

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Geography

The river begins on Cerro Caramanta in the West Andes. The delta is due north of Bahía Málaga and Buenaventura.

The mouth of the river has extensive stands of mangroves, part of the Esmeraldas-Pacific Colombia mangroves ecoregion.^[1]

Hydrometry

Monthly average flow of San Juan River ( m³/second) measured at Penitas station
Data from 25 years^[2]

Fauna

Reptiles

A species of snake, Dipsas sanctijoannis, is named after the San Juan River of Colombia, and is native to the watershed.^[3]

Fish

Andinoacara biseriatus - A Cichlid.^[4]

References

^ Carlos Borda, Northern South America: Northern Colombia, WWF: World Wide Fund for Nature, retrieved 2017-06-19
^ Unesco - San Juan River at Penitas Archived 2016-03-03 at the Wayback Machine
^ Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. ("St. John", p. 254).
^ Froese, Rainer; Pauly, Daniel (eds.) (2017). "Andinoacara biseriatus" in FishBase. May 2017 version.