By Al Bates
First published Jan 31, 2015 and re-edited in 2019.
In January 1737, Captain Juan Bautista de Anza reported from his outpost in Sonora to his superiors in central Mexico about vast deposits of silver near the “Arizona rancheria” owned by his deputy mayor, Bernardo de Urrea. That discovery, known as the Planchas de Plata, had two results. First was a struggle over ownership of the silver. Second was the adoption of the rancheria’s name to identify the surrounding area.Read More