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Prospecting for Copper
May 2004 by John Rothermel
This article deals with copper exploration, but it is relevant to exploration for other minerals. I will use the geology of the Copper Creek area in Pinal County, Arizona, as an example.
Detecting Clay Seams
Because the old timers were so good at locating the better paying deposits—most of them along clay seams in this particular area—it makes good sense to try and locate these clay lines at old mining sites.
The Golden Highway—El Dorado County
Continuing northward and crossing the Consumnes River along California’s famed Highway 49, the “Golden Highway” leads through the heart of the Mother Lode countryto El Dorado County. This is where the Gold Rush began...
PLP Files Lawsuit to Lift Ban on Suction Dredging
“The goal is to get the rights of suction gold dredgers restored prior to the next dredging season,” stated PLP president Jerry Hobbs.
Old Mine Sites and New Technology
We’ve had two trips to the deserts of Nevada and explored mines and mill sites, hiked miles of ravines in California, and swung our detector coils over thousands of square yards of bedrock.
Alaska's Cripple Creek Mining District
If developed with metal detecting in mind, this virgin ground could be a bonanza for nugget hunting.
Our Readers Say
Re: "Miner Wins Important Victory Against Forest Service" (March 2005)
12-Year-Old Unearths Large Diamond
It is the eighth largest brown diamond to be found and certified by park staff.
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The Bawl Mill
• Economic Analysis on Critical Habitat for Bull Trout
• US Mining Industry Outlook Brighter
• Gold in the Chinle Formation
• Gold Dredgers Rescue Threatened Fish
• Gold Mine Plans Upheld in Lawsuit
• DOI Computers Back Online
• Picks & Pans: Nuggets by the Dozen in Alaska
• Historical Mining Methods
• The Elusive Mother Lode
• Clarence King, Geologist
• Mining Stock Quotes and Mineral & Metal Prices
• Melman on Gold & Silver
