Prospecting Underground: Use Caution
April 2011 by Don RobinsonIn 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.
How big is the deposit? Are there boulders you will need to move? Do you just want to recover the nuggets or do you think there is good fine gold that you will also want to capture?
The holes were overloaded with explosives, but I didn’t know it. I was just a green mining engineer fresh out of school and told to watch as the experienced miners set the charge.
Located 23 miles south of Libby, the land surrounding the Libby Creek area has been of interest to prospectors since the early 1860s, when it was home to up to 600 miners working at a camp known as Libbysville.
…what adjustment can I make to my dredge that will enhance its gold-catching ability?
It’s been seven years since Forrest Fenn announced the existence of the buried treasure, said to be worth nearly $2 million. It has prompted thousands to comb areas of New Mexico, Yellowstone National Park and elsewhere.
Every year there are large nuggets found by the diligent, and occasionally by the lucky newbie.
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