Gold in the Chinle Formation
May 2004 by Edgar B. Heylmun, PhDThe Chinle Formation, of Triassic age, underlies about 100,000 square miles in Arizona, Colorado, Nevada, New Mexico, and Utah. It adds to the scenic grandeur of the great Colorado Plateau province, noted for its high cliffs and deep canyons.
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Setting up a gravity dredge
One of Arizona’s richest silver producers was the fabulously rich Silver King Mine of Pinal County. This incredible deposit was first discovered in 1875 during the construction of the famous Stoneman Grade, which connects present day Superior to Globe, Arizona. From 1877 to 1888 the famous Silver King Mine was in operation and during that brief span of time it produced an astounding $16,000,000 in silver.
Gold was mined in the Council Region several years before it was known at Nome, and from this vicinity the prospectors set out and made the Nome placers familiar to the world.
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