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Prospecting & Detecting

Old Mine Sites and New Technology

We’ve had two trips to the deserts of Nevada and explored mines and mill sites, hiked miles of ravines in California, and swung our detector coils over thousands of square yards of bedrock.

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Route Planning Using GPS


My intention was to end this discussion with waypoints and routes, then I found USGS maps of the Plainfield Quadrangle.

Arizona Prospector Rescued from Mine Shaft


“I heard him hollering down in the hole as soon as I got there,” he said. “I was just glad to see him alive.”

Twenty Minutes on a Five-inch Dredge


The first thing I realized was this was not a toy—this thing had power and I needed to really pay attention. I got into position, took a deep breath, and pushed that monster into the hard pack.

Searchers' Dreams


The story began in a southern Arizona mountain range...

Prospecting for Pegmatites


…in some cases pegmatites have produced individual mineral crystals that are enormous, attaining lengths of over 40 feet long, and many of the world’s largest mineral crystals are examples that were found within pegmatite deposits.

Recovering Fine Gold with Oleophilic Adhesion


Oleophilic means "affinity to or attracted to oils," and this includes gold an diamonds.

Prospecting The East Fork San Gabriel Canyon, Southern California


I have found gold more than 200 feet above the river. It was not unusual for nuggets of an ounce or more to be found in these deposits, but fine gold and flakes are much more common.

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Ask The Experts - Why is there no detector signal with pyrite?   • Ask The Experts - Need assaying advice   • Ask The Experts - Can you tell me anything about the Cherry Creek District in Nevada?   • Legislative and Regulatory Update   • Understanding Skim Bar Placers   • Detecting Canyon Bedrock in The Sierras   • Mining Journal Receives Honor   • Gold Prospecting: For Better or Worse   • New Research Tool for Miners in Wyoming   • PLP Update   • Have We Hit 'Peak Gold'?   • What Happened to The Gold Prospecting and Mining Summit?   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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Uphill Battle Continues for California Dredgers

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