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The Stonewall Jackson Mine, San Diego County, California
July 2001 by Richard H. Peterson, PhD
For obvious reasons southern California is not known historically for its gold mines. Gold production was concentrated heavily in the Sierra Nevada foothills in the northern part of the state. However, the high mountainous region of eastern San Diego County was the site of a number of productive hardrock gold mines, notably in the late 19th century.Heavy Sands Mining
Lately my mind has been involved with group 4 of the transition elements, namely titanium, zirconium, and hafnium. They all have similar chemical properties. Of greatest interest to economic geologists and miners is that these valuable elements often occur together in sands.
Can't We Just Do Something?
We know we lack critical minerals. We know the causes. We know the need. We have the knowledge we need right now. Why can’t we just take action and fix the problem?
Mining Stock Quotes and Mineral & Metal Prices
Gold in Panama
Panama is a long, narrow isthmus, 30,200 square miles in area, that separates Costa Rica from Colombia. It is best noted for the Panama Canal, which is now under the control of the Panamanian government, aided by the United States. The canal bisects the country and is an engineering marvel that was opened in 1914.
Ask the Experts
Q: Will my detector react to fine gold?
Looking Back
Excerpts from CMJ published 50 years ago this month.
The Bawl Mill
• Energy conservation? Or investing in power?
• Collecting Dividends from the "Brown" fund
• Come rain, sleet, or snow...
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The Bawl Mill
• Our Readers Say
• Global Warming—The Press Gets it Wrong, Our Report Doesn't Support the Kyoto Treaty
• Former Sunshine Miners Find Work in Montana
• CMA Conference Summary
• Uranium Deposits
• Washington Gold & Fish Update
• Prospecting for Diamonds: Is It a Diamond or Crystal Quartz?
• Basic Information About Gold Detectors
• Oil Seeps in Northern California
• Diamond Dealer Prevails in Congo
• Company Notes
• Picks & Pans: The Gold Bullion Mine
• Arizona's Border Silver Camps
• Proposal Submitted for Lab at Homestake
• Mining Stock Quotes and Mineral & Metal Prices
• Melman on Gold & Silver
