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Prospecting & Detecting

The Value of Evidence

That prospecting effort you are about to spend your time on...is it worth your effort? If you are going to devote your time to it, you will need all the facts you can get.

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Detecting for Gold: A Return to Familiar Ground


I probably swung over a few targets without noticing them. My first target came  about ten minutes later as I went over a part of the high bench in this wide section of the dry wash.

Practical Advice for Milling Hard Rock Ores


The problem is that extracting gold from hard rock is often a lot more difficult than processing placer gravels. Still, there is some very high-grade ore out there in many old mining areas.

Time for a New Approach: Detecting Float Gold


The first pieces found were in a spot that most gold hunters would not even detect, right in the middle of a downslope meadow.

The Black Diamond of the Forest


Hearty trees, shrubs and plants are a product of the soil conditions in which they grow, so it makes sense that roots near an ore deposit will take on nutrients containing metals if they are present.

Green Valley Reconnaissance


During this trip we found enough gold to make us want to come back, even with the punishment of a very long, tough hike.

Prospecting After Winter Storms


So, how much rain does it take to cause a major movement of gravels in a stream and redistribute the gold? The technical answer is enough water to move the bed load of the river.

Some Tips and Tricks for Dredgers: Determining Pulley Size and Belt Length


If Epd is larger, then the compressor will be spinning faster than the manufacturer’s maximum specified RPM and might destroy itself. If this happens, then the compressor again might not produce enough air to support a diver. Neither is a desired outcome.

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The Bawl Mill   • Ask The Experts - Do I need something other than a fire assay for PGMs?   • Ask The Experts - This low-grade ore is not worth processing   • Placer Gold Deposits of New Mexico   • The Hunch   • Resurrecting An Old Hard Rock Mine—A Series of Small Victories   • The Basics of Exploration Leases and Contracts—Part I   • Gold Prospecting for Better or Worse: A Long Hike   • Mutiny on The Mason   • Who Jumped Whose Claim First?   • Over The Divide: Charles "Chuck" Cushman   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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