<P> The Paraguay River ( Río Paraguay in Spanish , Rio Paraguai in Portuguese , Ysyry Paraguái in Guarani ) is a major river in south - central South America , running through Brazil , Bolivia , Paraguay and Argentina . It flows about 2,621 kilometres ( 1,629 mi ) from its headwaters in the Brazilian state of Mato Grosso to its confluence with the Paraná River north of Corrientes and Resistencia . </P>
where does the paraguay river start and end
from its headwaters in the Brazilian state of Mato Grosso to its confluence with the Paraná River north of Corrientes and Resistencia