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Ask The Experts — How have fellow dredgers modified their dredges in order to retain fine gold?
March 2008 by David Knowlen
Q: In the article by David Knowlen, “There’s Still Gold in the Umpqua River,” January 2008, the author stated that “most conventional dredges with normal angles of sluice setup do not retain this gold.”...Additional articles that might interest you...
Great Panther Silver
January 2011
The company acquired the Guanajuato Mine Complex in 2005, and since that time they have carried out extensive drilling programs, both from surface and underground, with particular emphasis being placed on the Cata Clavo Zone.

Picks & Pans: Prospecting for Lode Gold
October 1999
Most of the world's ore deposits have been found by prospectors, not by geologists nor mining engineers. This article has been prepared with this fact in mind.

Company Notes
August 2001
• Pure Gold Minerals Inc.
• International Freegold Mineral Development Inc.
• Hope Bay Gold Corp. Inc.
• Pure Gold Minerals Inc.
• International Freegold Mineral Development Inc.
• Hope Bay Gold Corp. Inc.
Oregon Dredge Permit Litigation Update
October 2011
In other words, just like those that move next to an airport and then complain about the noise, Mr. Riskedahl deliberately went out of his way to “witness and document the effects of suction dredge mining,” and when he found some, he was annoyed by it!
In other words, just like those that move next to an airport and then complain about the noise, Mr. Riskedahl deliberately went out of his way to “witness and document the effects of suction dredge mining,” and when he found some, he was annoyed by it!
Collecting Garnets in Wyoming
April 2000
In Wyoming, garnets are often common where aluminum-rich (micaceous) rocks have been highly metamorphosed. Such rocks are recognized by abundant black (biotite), silver (muscovite), or green (chlorite) mica with periodic grains of red garnet.
In Wyoming, garnets are often common where aluminum-rich (micaceous) rocks have been highly metamorphosed. Such rocks are recognized by abundant black (biotite), silver (muscovite), or green (chlorite) mica with periodic grains of red garnet.
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The Bawl Mill
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• Melman on Gold & Silver
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