The Río Nahueve is a significant watercourse in the northern part of Neuquén Province, Argentina, specifically within the department of Minas. It originates in the Reserva Natural de las Lagunas de Epulauquen, a protected natural area. The river is one of the most voluminous in the north of Neuquén. It runs alongside Provincial Route 45, providing convenient access points for paddlers. The river's character is suitable for multi-day paddling expeditions, with kayaking and rafting trips of three days being documented. The rapids on the Río Nahueve are generally considered to be of Class II to III difficulty. The river flows through the area near the town of Las Ovejas. Its waters are part of the larger Río Negro basin. The surrounding landscape of northern Patagonia provides a scenic backdrop for the paddling experience.