the la plata river basin of south america is also known as
Río de la Plata Basin The Río de la Plata basin (Spanish: Cuenca del Plata, Portuguese: Bacia do Prata), more often called the River Plate basin in scholarly writings[1], sometimes called the Platine basin[2] or Platine region,[3] is the 3,170,000-square-kilometre (1,220,000 sq mi)[4] hydrographical area in South America that drains to the Río de la Plata. It includes areas of southeastern Bolivia, southern and central Brazil, the entire country of Paraguay, most of Uruguay, and northern Argentina. Making up about one fourth of the continent's surface, it is the second largest drainage basin in South America (after the Amazon basin) and one of the largest in the world.[5]
Bolivia Bolivia (/bəˈlɪviə/ ( listen); Spanish: [boˈliβja]; Guarani: Mborivia [ᵐboˈɾiʋja]; Quechua: Buliwya [bʊlɪwja]; Aymara: Wuliwya [wʊlɪwja]), officially known as the Plurinational State of Bolivia (Spanish: Estado Plurinacional de Bolivia),[8][9] is located in western-central South America. It is bordered to the north and east by Brazil, to the southeast by Paraguay, to the south by Argentina, to the southwest by Chile, and to the northwest by Peru. It has no ocean access. One-third of the country is the Andean mountain range.