Río Claro is a freestone Andean river located in the Maule Region of Chile, rising high in the Andes Mountains at the confluence of the Los Cajones River and Del Planchón River. It flows westward through rugged mountain terrain before emptying into the Teno River near the city of Los Queñes. Fed by Andean snowmelt and glacial sources, the river carries the characteristic clarity and cold temperatures typical of high-altitude Chilean rivers, making it a compelling destination for trout anglers seeking wild fish in a dramatic mountain setting. The river gained international recognition as a former training site for the U.S. Olympic slalom kayak team, a testament to the dynamic and powerful nature of its currents.