The Political Landscapes of Eastern Sonora, Mexico: A Reconsideration of Scale and Organization

Abstract

The indigenous polities of eastern Sonora, Mexico, play an important role in reconstructions of the late prehispanic political geography of northwest Mexico and the U.S. Southwest. Most interpretations of political organization in the region rely heavily on Spanish conquest accounts from the 1500s augmented by some archaeological data. Researchers have argued that political units in this region were organizationally complex and controlled substantial territories. Recent investigations in the Moctezuma Valley mostly refute these interpretations. This paper presents evidence of the limited scale of political organization in the region, including settlement patterns, the distribution of public architecture, the movement of rare goods, stylistic differences in material culture, and demographic reconstructions. Previous ethnohistoric research mistakenly assumed that Spanish exploration chronicles provided a near complete list of primate centers. This approach produced interpretations of geographically expansive polities. Present data suggest that the region was highly balkanized into numerous autonomous political units that were minimally involved in macro-regional political and social trajectories. The character of political organization in this region resulted in part from a patchy landscape, low demographic pressure, and geographic location between more centrally organized groups.