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Prospecting & Detecting

Heavy Glacial Rocks and Gold in the Midwest

Over the years, I've noticed a pattern in the type of rocks associated with the best gold deposits in Midwestern glacial gravel.

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Ancestral Yuba River Placer Gold Deposits


The small-scale miner has reasonable opportunity to exploit some of these small, rich placer gold deposits. 

Silverton's Gold


Within this area, about two million ounces of gold and fifty million ounces of silver have been mined. Faults, dikes, veins and fissures that carry the ore form a concentric radial pattern—like spokes on a wagon wheel—around the caldera core.

Metal Detecting Old Hard Rock Mine Dumps


The type of mine dump that is best for metal detecting are the ones that consist of mixed sizes of rock and are located near some sort of excavation, commonly a shaft or adit. Sometimes the piles located along a trench dug by the miners can be productive as well.

Mining Company Pays Millions for Gold Dug From Mine Dumps


Through a program that began in 2011, Barrick Gold Corp.-owned Golden Sunlight has paid out more than $45 million to small miners in the last seven years...

Dredging Tips and Tricks: A Measure of Water Pump Efficiency


…as an academic argument, when mated to the appropriate engine, is the pump really moving water at the rate of 400 GPM?

Hidden Value in Old Tailings


The 15 rare earth elements were discovered long after the gold rush began to wane, but demand for them only took off over the past 10 years...

Ask the Experts


Setting up a gravity dredge

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