Category
page 1La Plata basin
Río de la Plata
estuary formed by the confluence of the Uruguay River and the Paraná River on the border between Argentina and Uruguay
Paraguay River
river of Argentina, Brazil and Paraguay

Pantanal
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.
Gran Chaco
region of Southern America
Mesopotamia
region in Argentina
Matanza River
river in Argentina
Salado River
river en Buenos Aires, Argentina
Yverá Wetlands
protected area
Luján River
river in Argentina
Río de la Plata Basin
hydrographical area in South America
Reconquista River
river in Argentina
Samborombón
river of Argentina