All Articles
Picks & Pans: Mining Tungsten Ore—A Case History
May 2002 by Dr. Ralph E. Pray
In 1977, when the price of tungsten hit one of its highs, three of us formed U.S. Western Mines to look for scheelite, the mineral ore of tungsten. Union Carbide Corporation was purchasing raw tungsten ore at...
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Ask The Experts: Bench Top Crushers
August 2010
... there was a picture of a small rock crusher you have, and I was wondering if it’s one that is still available...
... there was a picture of a small rock crusher you have, and I was wondering if it’s one that is still available...
The Lost Silver Triangle of the Sierra Madre—Part I
April 2008
The North American continent harbors a vast mountain fastness that few Anglo-Americans have seen—an awesome land cut by perpendicular canyons and towering peaks, a forbidding wilderness virtually unchanged...
The North American continent harbors a vast mountain fastness that few Anglo-Americans have seen—an awesome land cut by perpendicular canyons and towering peaks, a forbidding wilderness virtually unchanged...
Mud Men: Pocket Miners of Southwest Oregon Part II
March 2011
How many more clays seams lie adjacent to known shear zones and quartz veins in the pocket areas of southwestern Oregon?
How many more clays seams lie adjacent to known shear zones and quartz veins in the pocket areas of southwestern Oregon?
Gold Mine Proposed in Jefferson County
August 2007
What could be the first underground gold mine to open in Montana in at least a decade is proposed near the ghost town of Elkhorn in Jefferson County, Montana.
What could be the first underground gold mine to open in Montana in at least a decade is proposed near the ghost town of Elkhorn in Jefferson County, Montana.
Working on the Bear River
January 2007
Further downstream our motorized equipment was in play. One power sluice was going a lot, with a crew of four getting familiar with the equipment and working hard to create a holding pond to prohibit the muddy water and the...
Further downstream our motorized equipment was in play. One power sluice was going a lot, with a crew of four getting familiar with the equipment and working hard to create a holding pond to prohibit the muddy water and the...
Melman on Gold & Silver
August 2002
Yet another term has entered the lexicon of investment analysis and that term is “Fallen Angels.” No, we are not referring to religious icons or celestial bodies. Rather, the investment community has dubbed the debt instruments of once-prosperous companies that have now fallen on hard times with that moniker.
Yet another term has entered the lexicon of investment analysis and that term is “Fallen Angels.” No, we are not referring to religious icons or celestial bodies. Rather, the investment community has dubbed the debt instruments of once-prosperous companies that have now fallen on hard times with that moniker.
2002 California State Gold Panning Championships—Foresthill, California
October 2002
For the second year in a row the historic mining town of Foresthill hosted the California State Gold Panning Championships. The State Championships are sponsored by the Mother Lode Goldhounds, a California non-profit corporation.
For the second year in a row the historic mining town of Foresthill hosted the California State Gold Panning Championships. The State Championships are sponsored by the Mother Lode Goldhounds, a California non-profit corporation.
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