Etnohistorical analisis of social complexity of the lower delta of Colorado river based on missionary documents of the end of the XVII and XVIII centurys

Abstract

Based on ethno-historical analysis of Hispanic documents of the late 17th and 18^th  centuries, the lower delta of the Colorado River was the nuclear area of a region with an intensive interethnic effervescence. In this social dynamic all societies of the northern third of Sonoran Desert were integrated, both the sedentary and the seasonal nomadic ones. This paper presents a study about the transcendence of the historic and social web of interactions, unfolded among these societies. The analytic perspective is focused on the lower delta of Colorado River.