Nogales train construction uncovers pre-Columbian town and petroglyphs

Nogales train construction uncovers pre-Columbian town and petroglyphs

Researchers in the northern state of Sonora have uncovered a pre-Columbian village that predates the nearby Cerro de Trincheras archaeological zone and offers rare evidence of cross-modern-border ties with ancient cultures in what is now Arizona. In northern Sonora’s Cocóspera River valley and canyon — about 100 miles south of Tucson, Arizona — specialists from the National Institute of Anthropology and History (INAH) have identified an earthen …