Prospecting & Detecting
Prospecting Underground: Use Caution
April 2011 by Don Robinson
In underground placer work, the contact point of the bedrock tunnel and the gravel is a very weak point and always has to be timbered. The bedrock here is thin, fractured, and the gravels loose from many years of oxidizing.Find of a Lifetime
My metal detecting hobby began about ten years ago when I bought a used metal detector for about $300. I got it specifically to look for meteorites. It was pretty much worthless, not user friendly, and I did not find anything with it.
Understanding Skim Bar Placers
Perhaps the most notable thing about skim placers is that they form on the top surface of gravel bars, as opposed to coarser gold placers where the weight of the gold particles allows the gold to settle down on or near bedrock.
Ask the Experts
• What to prospect with on the Klamath River
Attention to Detail - Part II
Ditches almost always started in the high country and contoured the mountainsides, making a long drop, usually many miles away, to the goldfields. There are ditches in Trinity County that originate at seven and eight thousand feet in the Trinity Alps that carried water almost thirty miles.
The Winning Hand
The operation and techniques employed are highly successful in producing free gold with minimal work involved while maintaining an environment protection process through the use of recycled water and a settling pond.
The Value of Old Patches
Nuggets make for the best memories and this patch was just adding to mine. In the hours of daylight I had left, I worked from that nugget to the bottom of the patch, collecting eight more nuggets.
Humble Beginnings
Right away I got a target, and it ended up being gold from a nice little bench. With only an hour left of daylight, I continued heading upstream and found five more tiny pieces of gold with my VLF…
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• Mining Claims—What to Know Before You File
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• 5th Circuit Ruling May Benefit Miners
• Indicator Minerals for Gold & Silver
• Mud Men: Pocket Miners of Southwest Oregon Part III
• Legislative and Regulatory Update
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Silver Mining Returning to Texas
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A New Look at Old Mines
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