The Rio Pangal is a mountain river originating high in the Andes Mountains of central Chile, flowing through the O'Higgins Region before joining the Cachapoal River, which eventually drains into the Rapel River and reaches the Pacific Ocean. Known for its clear waters and stunning Andean landscapes, the Pangal cuts through valleys and plains as it descends from the high peaks, collecting snowmelt and tributary flows along its journey. The river is part of the larger Cachapoal River basin and is recognized as a productive brown trout fishery set against a backdrop of native trees, riparian vegetation, and dramatic mountain scenery.