DiPeso's analysis could very well be the key to the historical conundrum concerning Vázquez de Coronado's route through Sonora. By following the documentation almost to a fault, DiPeso determined that the route of Vázquez de Coronado veered northwestward to the Río Bavispe and its confluence with the Río Batepito which he followed to the Río San Bernardino that originates in southwestern Arizona considerably west of the San Pedro River. DiPeso made a strong case for the expedition crossing into Arizona at present Slaughter Ranch not far westward from the Arizona‑New Mexico border. He concluded that the expedition entered New Mexico crossing into the Animas Valley through Antelope Pass and then straddled the Arizona‑New Mexico boundary until reaching Zuni Pueblo. DiPeso wrote,
n/a
n/a