All Articles
Basic Drywashing Principles
August 2001 by Jim Straight

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.
BLM 3809 Final Rule Implications

Underground Mining: Stoping Methods

Early Summer Mining in Wyoming
Old tailing piles extend for miles. There was still plenty of water flowing here, so WPA members set up highbankers at several settling ponds.
Evaluating a Placer Discovery

Specialized Equipment Available for Hire
Since we’ve already covered the basics of permitting a “Notice Level” mining operation, it’s time to talk actual mining.
Detecting in Australia's Etheridge Goldfield

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