Río Cochuna flows through the rugged terrain of Tucumán province in northwestern Argentina, situated within or near the boundaries of Parque Nacional Aconquija. This mountain river drains through a landscape shaped by the dramatic topography of the Aconquija range, supporting a diverse aquatic ecosystem that includes both native fish communities and introduced species. The river's position within a protected national park setting gives it ecological significance well beyond its size, making it a destination of interest for anglers who appreciate wild, relatively undisturbed water in a spectacular Andean foothill environment.