 Upon contact with Spaniards in the region towards the end of the 16th century, initial sources identified over 200 native groups dedicated primarily to hunting and fruit recollection.Within their nomad life these groups had a more or less regular itinerary throughout the year and went back to centers such as Boca de Potrerillos when the weather and times favor these activities.Both, by its untamed nature, as well as for references to them as Chichimec by the Nahuatl dominant group, the native groups, in colonial sources, are described as barbarians and uncultivated, very different from the cultivated groups of Mesoamerica.