SPANISH MINING
Precious metals mining in North America began with the discovery of the Esp?ritu
Santo Lode near Compostela, Mexico in 1543 (Young 1970:59). During the resulting
silver rush from 1543 to 1553 approximately 22 million pesos in silver were produced,
totaling more than all the silver seized during the Conquest. The Spanish, and later
Mexican, miners largely ignored the northern regions of Mexico that would later become
part of the United States. This was due to the continued profitability of the Mexican
mines, the distance from existing population centers, and the environmental difficulties
found in these outlying areas (Young 1970). The history of North America could have
been radically different if the value of the Spanish territories in California, Nevada,
Arizona and Colorado had been discovered earlier.
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