description Bermejo Overview
The Bermejo River is a transboundary river that rises in Bolivia and flows east across northern Argentina. It carries a heavy sediment load that gives its water a reddish appearance, reflected in the river's name, and its discharge varies substantially between seasons. The Bermejo enters the Paraguay River near Resistencia, making it part of the Paraguay-Paraná river system.
help Bermejo FAQ
Why does the Bermejo River look red?
Its name refers to the reddish appearance caused by a very heavy suspended sediment load. Scientific descriptions of the river report sediment concentrations that can reach roughly 10,000 milligrams per liter in some reaches.
Where does the Bermejo River flow?
The river rises in Bolivia and runs east across northern Argentina before joining the Paraguay River. Its basin is shared by Bolivia and Argentina and forms part of the larger Paraná and La Plata drainage system.
Why is the Bermejo River difficult to navigate?
The river carries enormous quantities of sediment and has shifting, shallow channels. Historical attempts to establish regular commercial navigation struggled because the channel morphology changes and sediment continually accumulates.
Does the Bermejo River flow directly into the Paraná River?
Its lower course joins the Paraguay River, which is itself part of the Paraná and La Plata system. This makes the Bermejo an important tributary of the Paraguay rather than a river that reaches the Paraná by a separate direct mouth.
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