San Juan River | |
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![]() 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.