Río Murta flows through the Aysén del General Carlos Ibáñez del Campo Region of Chilean Patagonia, draining a watershed of approximately 123,095 hectares — roughly 1.15% of the region's total hydrological area. This remote Patagonian river winds through one of South America's most pristine and wild landscapes, characterized by ancient temperate rainforest, glacially carved valleys, and the dramatic geography that defines the Aysén region. The river's catchment sits within a broader network of coastal and interior drainages that feed into the larger Patagonian hydrological system, bordered by coastal drainages to the north and south and positioned within a region renowned among international fly fishers for its exceptional wild trout fisheries. The surrounding wilderness, minimal human infrastructure, and the river's position deep within Chilean Patagonia make Río Murta a destination for anglers seeking a truly remote and unspoiled fishing experience.