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Gold in the Chinle Formation
May 2004 by Edgar B. Heylmun, PhD
The 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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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.
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• Prospecting for Copper
• US Mining Industry Outlook Brighter
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• Gold Mine Plans Upheld in Lawsuit
• DOI Computers Back Online
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• The Elusive Mother Lode
• Clarence King, Geologist
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• Melman on Gold & Silver
