Salado River (Buenos Aires)

It originates at El Chañar Lake on the boundary with Santa Fe Province, 40 metres (130 ft) above mean sea level, and flows generally southeast for 640 kilometres (400 mi) before debouching into Samborombón Bay, part of the Río de la Plata estuary on the Atlantic Ocean.

The Salado's mouth is about 170 kilometres (110 mi) south of the city of Buenos Aires.

The Salado's drainage basin is about 170,000 square kilometres (66,000 sq mi), which is over half of the province's area.

The region receives an annual average of 2,000 millimetres (79 in) of precipitation, which often causes flooding in the low-lying area.

[3][4] In the 19th century, before the Conquest of the Desert, the Salado River served as frontier boundary between the Spanish colonised lands and those still under control of the indigenous peoples.