La Plata basin

estuary formed by the confluence of the Uruguay River and the Paraná River on the border between Argentina and Uruguay

river of Argentina, Brazil and Paraguay

The Pantanal (, ) is a natural region encompassing the world's largest tropical wetland area, and the world's largest flooded grasslands. It is located mostly within the Brazilian state of Mato Grosso do Sul, but it extends into Mato Grosso and portions of Bolivia and Paraguay. It sprawls over an area estimated at between . Various subregional ecosystems exist, each with distinct hydrological, geological, and ecological characteristics; up to 12 of them have been defined.

region of Southern America

region in Argentina

river in Argentina

river en Buenos Aires, Argentina

protected area

river in Argentina

hydrographical area in South America

river in Argentina

river of Argentina