A Treasure of Free Homemade Gold Prospecting Equipment Plans and Commentary: Arizona's Backbone: Mining

Blue Bowl Concentrator

Friday, January 06, 2017

Arizona's Backbone: Mining

There is evidence that as early as 1000 BC, native inhabitants of Arizona were mining cinnabar, coal,  turquoise, clay, and pigments.

One of the best histories of Arizona I have read. This 16 page pdf about Arizona mining is for free download and available at:
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