Arizona's Backbone: Mining

By Erwin Baer(Life time: ) - Original publication:Immediate source: http://www.yavapai100az.org/?page_id=678, Public Domain, https://commons.wikimedia.org/w/index.php?curid=32891930

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:
http://www.azmining.com/images/HISTORY_FULL.pdf