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Arizona's Border Silver Camps
July 2001 by Frank Lorey III
Not much has changed along the original stage road that runs easterly from an old schoolhouse northeast of Nogales into the Patagonia Mountains of southern Arizona. Marked on the maps as Duquesne Road, the route has been in use for over 130 years, climbing from the hot desert floor to an almost 6,000-foot elevation pass before dropping back down the eastern slope of the mountains to reach the old mining camps of Washington, Duquesne, and Lochiel.Calcite and Limestone
The other distinguishing feature of calcite has to do with its chemistry. Geologists sometimes take a small bottle of dilute hydrochloric acid out into the field with them because calcite reacts with acids to make a bubbly foam.
Platinum Placers and Nuggets
Sometimes a placer miner will find small bits and nuggets of metal associated with gold and other heavy minerals in his concentrates, which exhibits a silver-gray color rather than the normal tones of gold.
Ask The Experts - Can you tell me anything about the Cherry Creek District in Nevada?
Millie's Tailings
"Swanee" McBride knew how to make a safe trail along the narrow edge of a high, steep slope bordering his mining claims. It twisted into sharp turns as it wound around massive pines and huge boulders.
Mining Deaths Drop to New Low in 2001
Fatal injuries at mines in the United States declined last year to a historic new low, according to preliminary data released January 3, 2002, by the Mine Safety and Health Administration (MSHA).
Metal Detecting Within the Cordillera for Gold Placers Associated With Tertiary Epithermal Ore Deposits
This is a follow-up article to “Epithermal Ore Deposits...” published in the December 2000 issue. Related tables and maps were included with the previous article. If you did not receive the December issue you can still view the previously published maps on our web site by clicking on “January 2001 Featured Article.”—Editor
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