Río Medinas is a stream flowing through Tucumán Province in northwestern Argentina, situated along a mountain-to-lowland transition zone. The river runs through a landscape shaped by the gradual shift from Andean foothills to the subtropical plains, giving it a dynamic character that changes significantly from its upper reaches to its lower stretches. The surrounding riparian environment reflects this transition, with the river passing through areas influenced by both natural highland ecosystems and the agricultural lowlands characteristic of the Tucumán region.