Río Desaguadero flows through one of the most spectacular and remote corners of Patagonia, winding through the pristine wilderness of Los Alerces National Park in Chubut, Argentina. This river is part of an exceptional network of fisheries that includes some of Patagonia's most celebrated waters, and its remote character gives it a genuine sense of adventure that sets it apart from more heavily trafficked destinations. The surrounding landscape is defined by old-growth forests, dramatic Andean topography, and crystal-clear glacial waters that create ideal conditions for wild trout. Anglers willing to venture into the park's less-traveled reaches will find Río Desaguadero to be a rewarding and memorable destination.