Río Tutuvén is a stream flowing through the Maule Region of Chile, situated at approximately 35°58′40.4″S, 72°17′52.1″W. The river drains a landscape typical of central Chile's coastal and interior ranges, where the terrain transitions between agricultural valleys and more rugged upland terrain. Like many waterways in the Maule Region, the Tutuvén is part of a broader network of rivers and streams that collectively support the region's freshwater ecosystems. The Maule Region is well known among Chilean anglers as productive trout country, and smaller streams like the Tutuvén contribute to that reputation as intimate, accessible fisheries set against a backdrop of native vegetation and rolling Chilean countryside.