Tucked deep within the Aysén del General Carlos Ibáñez del Campo Region of Chilean Patagonia, the Río Blanco is one of the most remote and pristine trout fisheries in the Southern Hemisphere. Stretching across more than 40 miles of untamed wilderness, this river offers an extraordinary fly fishing experience in a landscape that few anglers ever have the privilege of witnessing. The river is glacially fed, which profoundly shapes its character and fishing calendar, and its inaccessibility — hemmed in by dangerous rapids above and below the primary base camp — means that the water remains virtually unfished and teeming with large, wild trout. Anglers who make the journey are rewarded with endless holding water, gin-clear conditions during the prime season, and the kind of solitude that has all but disappeared from the world's great trout rivers.