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]
Buenos Aires Buenos Aires (/ˌbweɪnəs ˈɛəriːz/ or /-ˈaɪrɪs/;[5] Spanish pronunciation: [ˈbwenos ˈaiɾes])[6] is the capital and most populous city of Argentina. The city is located on the western shore of the estuary of the Río de la Plata, on the South American continent's southeastern coast. "Buenos Aires" can be translated as "fair winds" or "good airs", but the former was the meaning intended by the founders in the 16th century, by the use of the original name "Real de Nuestra Señora Santa María del Buen Ayre". The Greater Buenos Aires conurbation, which also includes several Buenos Aires Province districts, constitutes the fourth-most populous metropolitan area in the Americas, with a population of around 17 million.[3]