The estuary of the San Josér river has been an ideal place for human development, having sources of fresh water and access to the collection and hunting of marine and terrestrial species.
Through archaeological rescue work, in 2014 the presence of a pre-hispanic shell midden was confirmed. This archaeological site corresponds to a camp inhabited by nuclear families, who developed activities such as the collection of mollusks, bottom and shore fishing, as well as the hunting of marine and terrestrial animals.
These groups were located in a fluvial terrace of the San José river between the XII and XVI centuries. Their technological tools for subsistence were made of stone, from which they created knives, hammers, flakes, among others. In parallel, they also created ceramic pieces, some with beautiful designs, that have been used as containers.