The Río Uruguay is one of South America's great fishing rivers, forming the natural border between Argentina and Uruguay as it flows southward from the Salto Grande Dam toward the Río de la Plata. This powerful river is internationally renowned as one of the premier destinations for golden dorado fishing in the world, drawing anglers from across the globe to its tailwaters and open stretches. The river's diverse fish community, dramatic structure, and world-class trophy potential make it a bucket-list destination for serious freshwater anglers.