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Prospecting & Detecting

Using Countercurrent Material Flow to Improve Gold Recovery Efficiency

There is a material processing principle widely used in large milling operations to improve recovery that is poorly understood by most of the micro-mining and prospecting community...

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Metal Detector Testing Methods


It will not be any easier than on your table at home, and so testing a very small test target like the ballpoint pen can tell you immediately if a detector is suitable for looking for tiny gold nuggets.

The Subsurface Suction Dredge


The problems of the submersible dredge tube are addressed by the subsurface dredge, where the enclosed sluice recovery tube is suspended from a flotation assembly...

Potholes and Other Bedrock Traps


Potholes in bedrock can trap placer minerals and even be glory holes. They are, at least, interesting geologic phenomena, and at best, a treasure trove of gold nuggets.

Confluence Placers


Confluences of placer streams are well known as concentration sites for heavy minerals. The basic reason is that...

Early Winter Detecting in the Sierras


The mine site consists of river gravels from an ancient channel covering over 20 acres, and the place is covered with very large river rock and small tree overgrowth.

Eolian Placer Gold


I would first like to mention that I am not a geologist. I have, however, spent the last 8 years intently searching for gold nuggets with a metal detector. I have found gold in numerous locations, and in several different types of gold deposits.

Thinking Outside The Creek


Imagine for a minute the year is 1850. You’ve read and heard that gold was discovered in California and the creeks are so rich you can just scoop it up with your hands.

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The Bawl Mill   • Legislative and Regulatory Update   • Ask The Experts - Is this prospect worth sampling?   • Ask The Experts - Can you recommend resources for southeast Alaska?   • Ask The Experts - Can I pay someone to research a claim for me?   • Ask The Experts - Do larger detector coils see deeper nuggets?   • Reading A River: Understanding Erosion and Gold   • The Basics of Permitting and Bonding Your Mining Operation   • Plotting and Persistence Lead to Big Gold   • Gold Prospecting for Better or Worse: The First Year Is The Hardest   • Mining In The El Paso Range of Southern California   • Tips and Tricks: A Dredging Tip for Clearing the Tailings Pile   • The Kern River   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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