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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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Legislative and Regulatory Update


• Voters say "yes" to mining in Alaska
• Colorado cyanide ban case presented
• New small-scale regulations released in Washington State
• Colorado roadless areas

Gold at Ragged Top, Arizona


Ragged Top is a jagged mountain which rises to an elevation of 3,907 feet near the Silver Bell open-pit copper mine, some 34 airline miles northwest of downtown Tucson. It is an outlier of the Silver Bell Mountains...

A Family Quest for Gold


Back at our campsite, while the rest of us grabbed a late four o’clock lunch, Fallyn volunteered to do the clean-up panning.

Tight Budgets Force Forest Service to Cut Back


Seasonal wilderness-area rangers have been among the first to go as Forest Service managers juggle budget demands.

In Pursuit of Gold and Silver in the Sierra Madres—Buying the Pilot Mill


In 2005, my wife and I, along with our supervisor Horacio, made numerous business and supply trips from Arivechi, Sonora, to the capital of Sonora, Hermosillo. This is a distance of 135 miles along a very narrow paved mountain road.

Mother Lode Gold, California


Included here is a portion of an article entitled “The Mother Lode of California” written in 1898 by Ross E. Browne. He was a son of J. Ross Browne, adventurer and writer, who won fame for his reports to the US Congress on the mineral resources of the...

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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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