The three major river basins of Brazil are Amazon Basin, Paraguay-Parana system in the southwest and Sao Francisco in the eastern part of the highland.
The river flows towards the north for a distance of about 1000 km. over the Brazilian plateau and takes a sharp eastward turn to enter the coastal : strip along the Atlantic Ocean.
Pantanal, which is a region of swamps and marshes is one of the largest wetlands in the world. Located in the northwestern part of Mato Grosso Do Sul in Brazil.