paraná river mouth：Paraná River

Paraná River, river[1] of South America[2], the second longest after the Amazon, rising on the plateau of southeast-central Brazil[3] and flowing generally south to the point where, after a course of 3,032 miles (4,880 km), it joins the Uruguay River[4] to form the extensive Río de la Plata estuary of the Atlantic Ocean[5]. See also Plata, Río de la[6].

Itaipú DamItaipú Dam on the Upper Paraná River, north of Ciudad del Este, Paraguay.(more)[7]

The Paraná River’s drainage basin[8], with an area of about 1,081,000 square miles (2,800,000 square km), includes the greater part of southeastern Brazil, Paraguay[9], southeastern Bolivia[10], and northern Argentina[11]. From its origin at the confluence[12] of the Grande and Paranaíba rivers to its junction with the Paraguay River[13], the river is known as the Alto (Upper) Paraná[14]. This upper course has three important tributaries, namely the Tietê, the Paranapanema, and the Iguaçu,...