San Juan River (Argentina)

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San Juan River
The San Juan River
Path of the Rio San Juan [1]
Location
Country	Argentina
Province	San Juan
Physical characteristics
Source
• location	Confluence of the Calingasta, Castaño Viejo, and los Patos rivers
Mouth
• location	Desaguadero River
Length	500 km (310 mi)
Basin size	39,906 km2 (15,408 sq mi)
Discharge
• average	56 m3/s (2,000 cu ft/s)
Basin features
Progression	Desaguadero River Atlantic Ocean

The San Juan River is, together with the Jáchal, the most important river of the Argentine province of San Juan. Both join the Desaguadero/Colorado system that ends at the Atlantic Ocean.