San Jorge River
|San Jorge River|
San Jorge River in Montelíbano, Córdoba
|Main source||Paramillo National Park|
|River mouth||Magdalena River|
|Basin size||96,500 km2 (37,300 sq mi)|
|Length||368 km (229 mi)|
TheSan Jorge River is a river Colombia that begins in National Park Paramillo (departments of Antioch 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.
The San Jorge was discovered, apparently, by the Spanish conquistador-Madrid Alonso de Heredia, while seeking to establish contact with the culture Zenú in the 1530s. At that time the river was the Indian name of Xegú or Jegu and its banks flourished numerous villages of pre-Columbian society as Yape Zenú (now Ayapel, Córdoba) and Tacasuán (now San Benito Abad, near which Hall discovered the river. Heredia gave the name of St. George in honor of the Christian saint who fought a dragon.
In 1966 American aviator sighted an extensive network of canals and artificial ridges San Jorge and was the first to say that the "raking" was not natural but a work of human engineering. In 1986, the Colombian archaeologist Clemencia Plazas and Anna Maria Falchetti, defending this thesis showed that the ridges and channels built on the banks of San Jorge (covering about 50,000 square kilometres (19,000 sq mi) and are the channel network Hispanic America's largest) were work effectively Zenú pre-Columbian society, and that the San Jorge Valley was inhabited by a highly technological society can be seen as pottery and jewelry found on the banks of the river. Consisting of an extensive network of canals, hydraulic Prehispanic San Jorge River covers an area of 20,000 square kilometres (7,700 sq mi) and was built by an ethnic group that inhabited the area between the first and fourth centuries as the limited data on the subject. As this is an area that remains flooded for several months a year, it was necessary to create a drainage system to allow the permanent establishment of the population there.
- Rand McNally, The New International Atlas, 1993.
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