Río Correntoso is a short but remarkably productive tributary of the Río Simpson, located in the Aysén region of Chilean Patagonia near Coyhaique. Despite its modest size, this river punches well above its weight as a fishing destination, with anglers reporting exceptional catch rates — landing 20 or more fish in a single afternoon session is not unheard of. The surrounding landscape is classic Patagonian wilderness, and the river's accessibility from the Coyhaique area makes it a worthwhile stop for any angler exploring the region's renowned fisheries.