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The First Mine in America
August 2005 by Dr. Ralph E. Pray
Many people, mostly New Mexico Native Americans, but including this miner, wear turquoise from the first mine in America. I took my blue stones from the old mine by hand labor, underground, a half century ago.Basic Geology for the Independent Miner—Part III Understanding Plate Tectonics, Volcanism and Mountain Building
The formation of gold, silver and many other types of deposits depends on a natural segregation of the elements from the earth, so that gold or silver (and other minerals) becomes enriched enough to form a valuable ore.
Placer PGMs in Alaska
The state of Alaska is huge, over twice the size of Texas, with most of the population in just a few towns. The northern third of the state is north of the Arctic Circle, and vast regions are only sparsely populated.
Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Company Notes
• Vista Gold Corp
• Pan American Silver Corp
• Mountain Province Mining
Volume is the Key to Success
While recovery rates are important, they must necessarily be secondary to the volume of material processed. Running more material at lower recovery rates is generally preferable to increasing the efficiency of the system.
The Centennial Lode and the Centennial Ridge District, Wyoming
In 1874, placer gold was discovered in the Middle Fork of the Little Laramie River south of the present site of Centennial village. The source of the gold was traced upslope to a nearby ridge in the following year.
Microbes Play Role in Gold Creation
Researchers in Australia have uncovered evidence that a tiny microbe may have the Midas touch of Greek legend, capable of turning dust to gold.
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The Bawl Mill
• Our Readers Say
• Greenstone Belts in Minnesota
• The Paradox Basin—Part II
• A Sleeping Giant
• Buying a Used Gold Dredge
• Looking Back
• Gold in Vermont
• Picks & Pans: Prospecting on Perry Creek
• 9th Circuit Court Hears Pilgrim Family Case
• National Mining Hall of Fame to Induct Five
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
