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Turning Acid Mine Drainage Into Drinking Water?—Grass Valley Company May Have the Answer

HPT Research recently tested their patented process for treating Acid Mine Drainage (AMD) on thousands of gallons of contaminated water at the Mammoth Mine.

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Picks & Pans: The Perfect Paystreak


I have never heard how Browns Creek got its name but this pristine Northern California stream, which splashes its way from Deer Lick Springs on the Shasta County line to the Trinity River below Junction City, could easily have been called...

Legislative and Regulatory Update


• Changes to wetlands
• 43 CFR 3809
• Scaled-back version of CARA passes in the dead of night
• Sierra Nevada Framework

The Tonopah Gold and Silver District


The discovery of the Tonopah District by Jim Butler in May, 1900, was by far the most important event of its time, just as the discovery of the Comstock was the most important event in the Nevada’s earlier history.

Looking Back


Excerpts from California Mining Journal, our original title, published 50 years ago this month.

Ask The Experts - Is using hydrogen peroxide a good indicator for PGMs?


Natural Gold Alloys


Natural gold is never 100% pure; all natural nuggets contain at least some impurities. We're going to take a look at just what some of those impurities might be.

BLM Warning About Purchase of Mining Claims on the Internet


In a dramatic reversal of policy the Bureau of Land Management (BLM) has posted the following on the huge internet auction house, eBay. Mining claims are currently being offered on eBay with prices ranging into the millions of dollars and apparently the BLM is concerned that many of these claims may not have mineral values that reflect their huge asking prices, be improperly filed, or have one or more of the many other problems that can affect mining claims.

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The Bawl Mill   • Over the Divide   • A Word from the Editor   • Guest Editorial—Globalizing Mining in America, Part II   • Gold Point, Nevada—A One-Man Mining Town Restoration   • Rare Coin Makes a Mint at Auction   • Letter to the Editor   • Jackson Hole Gold, Wyoming   • Picks & Pans: Big River Dredging in Northern California   • Fake Assays & Assayers   • Everything You Need to Know About Gold Wheels   • Exceptional Gold Dredging in New Zealand   • Lightning Creek, British Columbia   • Mine Reopening Could Revive Region   • Willow Creek Dredging Trip   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices   • More Treasure From Sunken Ship

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Legislative and Regulatory Update

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