The Uruguay River is located on the western border of Uruguay.  The translation of the Uruguay River is Rio Uruguai. The river acts as a natural border for Uruguay and Argentina while also being along the border of Brazil and Argentina. It stretches around 1,000 miles, starting in the coastal mountains of Brazil and ending by draining into the Rio de la Plata. When the Uruguay River and the Parana River join, they create the Rio de la Plata, one of the largest geographical features in Uruguay. It is also wide enough to navigate by large ships. This is very useful for transporting goods and resources throughout Brazil, Uruguay, and Argentina. This being said, there are a few parts of the river towards the end where large cargo ships are not able to pass through. Small vessels can travel almost 60 miles extra as the river thins out. Also, further up the river, Salto Grande Falls holds a massive hydroelectric plant operated by Uruguay and Argentina. ⅓ of Uruguay's energy comes from hydroelectric powerplants like this one. The uruguay