Silver City of Zacatecas

Timeline

1. 1546–1548Foot of Cerro de la Bufa · ZacatecasJuan de Tolosa obtained high-grade silver-lead ore at Cerro de la Bufa in 1546, and soon with Diego de Ibarra, Cristóbal de Oñate, Baltasar Temiño de Bañuelos and others established a mining camp in 1548, called the Mine of Our Lady of the Remedy or the Zacatecas mine. Veins like San Bernabé drew artisans, merchants, and clerics, rapidly urbanizing the frontier camp.
2. 1550–1584Zacatecas silver belt · Northern New SpainFrom the 1550s Zacatecas's population ranked second only to a few centers like Mexico City, becoming the silver engine of northern New Spain. Amalgamation (mercury) processing spread along the central silver belt into patio workshops, with new sites like San Martín, Sombrerete, and Fresnillo radiating outward. Silver, mercury, grain, and Indian laborers moved in and out of the deep-valley city by mule train, turning the camp into a fully functional city.
3. 1585–1600City of Zacatecas · New SpainIn 1585 Philip II raised the mining camp to city status, subsequently granting titles and a coat of arms such as 'Most Noble and Most Loyal City of Our Lady of Zacatecas,' confirming its legal standing. The Royal Inland Road linked the city to Mexico City and northern mining districts; by the end of the sixteenth century it remained the northern gateway of New Spain's silver finances. Colonial-era output for the region is often estimated at a considerable share of world silver, but it should not be conflated with the Potosí mining city as the same object.