All Articles
Lluvia de Oro— A Shower of Gold Awaiting Development in the Sierra Madre—Part I
November 2008 by Steve Wilson
In the silver belt of the Sierra Madre, the Lluvia de Oro was a discovery of gold, found not by the Spaniards of yore, but from an observant Indian a little over a century ago.
Additional articles that might interest you...
Selenium, Mercury and Suction Dredging—Studies Contradict CA State Water Resources Board
April 2013
Federal and state regulatory agencies often cite mercury and methyl mercury in our waterways as a major factor for further restrictions on placer mining, and on suction gold dredge mining, in particular. However, these regulatory agencies are minimizing selenium and its neutralizing effects.
Federal and state regulatory agencies often cite mercury and methyl mercury in our waterways as a major factor for further restrictions on placer mining, and on suction gold dredge mining, in particular. However, these regulatory agencies are minimizing selenium and its neutralizing effects.
Ask the Experts
November 2013
Treating ore with a plasma torch or shock waves?
Treating ore with a plasma torch or shock waves?
Ask The Experts: Potential for developing magnesite deposit
March 2017
Q: What I would like to know is how to confirm if it is magnesite and the quality.
Critical Metals: Antimony
June 2016
I’ve been taking a look at the mining and uses of a number of critical metals in series of articles, and it’s time to take a look at antimony.
I’ve been taking a look at the mining and uses of a number of critical metals in series of articles, and it’s time to take a look at antimony.
Ask The Experts—Can you help explain the ratings in Melman On Gold & Silver?
May 2007
Q: I’m a fairly new subscriber. I enjoy Leonard’s financial column but his ratings at the end don’t seem to make sense. He will highlight problems with the economy but rate it “Positive.” Why is that?
Q: I’m a fairly new subscriber. I enjoy Leonard’s financial column but his ratings at the end don’t seem to make sense. He will highlight problems with the economy but rate it “Positive.” Why is that?
Picks & Pans: More Big River Dredging in Northern California
December 2000
As the mining club in Happy Camp had lowered their initial joining price to something even a dirt-poor, full-time gold dredger like me could afford, I joined—and then impatiently awaited the coming of dredging season.
As the mining club in Happy Camp had lowered their initial joining price to something even a dirt-poor, full-time gold dredger like me could afford, I joined—and then impatiently awaited the coming of dredging season.
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• Mining Tax Increase Suggested
• Opening Ceremony for Buckhorn Mine
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