Río De La Plata–Paraná–Rio Grande is the 2nd longest river in South America at 4,880 kilometers (3,032 miles).
The Paraná river system is the second longest river system in South America at 4,880 kilometers (3032 miles), after the mighty Amazon river. Draining from an area of 2,582,672 square kilometers, the Paraná river flows south-westerly through Brazil, Paraguay and Argentina at a rate of 22,000m3/s, before discharging onto Río de la Plata.