Arroyo Mista is an 84-kilometer-long waterway located in the Department of Leales, within the province of Tucumán in northwestern Argentina. It is part of the larger Río Salí basin, a region noted for its significant hydrological resources. The waterway flows near the small settlement, or aldea, also named Arroyo Mista. For paddlers, specific access points and take-out locations can be identified using planning tools that map private and public land boundaries along its course. The overall character of the paddling experience is shaped by its role in a rich aquatic network. A scientific study from 2014 focused on the phycoflora and limnological characteristics of Arroyo Mista, indicating that water quality and biological components have been subjects of formal research. This suggests paddlers may encounter a diverse aquatic ecosystem. There is no indication that paddling is prohibited on this waterway. The best seasons for paddling, water temperature patterns, specific hazards, notable sights, recommended routes, and available facilities are not described.