Dams Along the Paraná River, Brazil22.8S 53.7W
The wide, greenish-blue line crossing this image of Brazil diagonally is the Paraná River. Here, the river appears widest and most blue in color behind the Engineer Sérgio Motta Dam, formerly known as the Porto Primavera Dam, in the state of São Paulo, Brazil.
South of the dam, the river forms a natural boundary between Paraguay and Brazil until the confluence with the Iguazu River. Shortly upstream from this confluence, however, the river is dammed by the Itaipu Dam, the second largest hydroelectric power station in the world (after the Three Gorges Dam in the People’s Republic of China), and creating another massive, shallow reservoir behind it.
After merging with the Iguazu, the Paraná then becomes the natural border between Paraguay and Argentina. Here, the outline of Argentina’s Misiones Province is clearly visible as it is darker green than the surrounding land in Paraguay (west) and Brazil (east).