| San Jorge River | |
|---|---|
 San Jorge River in Montelíbano, Córdoba | |
| Location | |
| Country | Colombia |
| Physical characteristics | |
| Source | |
| • location | Paramillo National Park |
| Mouth | |
• location | Magdalena River |
| Length | 368 km (229 mi) |
| Basin size | 96,500 km2 (37,300 sq mi) |
| Discharge | |
| • average | 380 m3/s (13,000 cu ft/s) |
The San Jorge River is a river in Colombia that begins in National Park Paramillo (departments of Antioquia and Córdoba) and that runs between the mountains of San Geronimo and Ayapel before flowing into the River Cauca in Sucre Department.
The drainage basin comprises 96,500 square kilometres (37,300 sq mi) in the southeast of Córdoba Department, including the waters of Ayapel swamp and the Mompox region via the Caribbean departments of Cordoba, Sucre and Bolivar. Its tributaries are the rivers San Pedro, Dirty and Ure. The river registers a minimum flow of 24 cubic metres per second (850 cu ft/s) and a maximum of 697 cubic metres per second (24,600 cu ft/s).
Currently the San Jorge is one of the rivers with fish wealth, but its high pollution and deterioration was due largely to fishing with explosives and obtaining gold alluvium of its waters by the method of flotation mercury.