By Bill Hawes
The history of Arizona’s mining industry didn’t begin until the Joseph Walker party discovered gold. True, there were other contemporary or even earlier mining endeavors, chiefly along the Colorado River or close to the southern border with Mexico, but they didn’t lead to any significant rushes to the territory. These were mostly silver ventures, which was uneconomic to transport to markets. Gold (a mineral that didn’t require further processing) was the only economical commodity to seek.
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