Ask The Experts — How have fellow dredgers modified their dredges in order to retain fine gold?
March 2008 by David KnowlenQ: 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.”...
At an altitude of over 4,000 feet, in the mountainous terrain of eastern San Diego County, lies the once productive Julian Mining District. Beginning with placer prospecting in 1869, this area moved rapidly into underground quartz or vein mining for gold.
...more folks rolled in on Saturday morning and many were eager to venture out onto the Sleepy Bear property—all 415 acres—and try their luck at finding some gold.
That is one of the problems with much of the so-called objective information we regularly receive—it is so tinged with partisanship that much of it can barely be believed...
A study showed that between 1930 and 1980, only a quarter of one percent of the land in the United States was used in all mining applications combined, including surface mining, tailings disposal, underground mines, and all mineral processing facilities.
The Forest Service issued an Interim Rule on July 9, 2004, to require a Notice of Intent or Plan for mining activities that cause little or no disturbance to public lands under Forest Service jurisdiction.
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