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.Where to Find Gold in Indiana—Part II
Part I of the article addressed modern placer gold deposits. This second installment will address “ancient” flood deposits.
California Dredgers: A Step Closer to Getting Back in the Water
...Judge Ochoa ordered the parties to participate in mandatory settlement hearings starting June 24, 2014.
Small-Scale Miners Rock the Mining World
With the high price of gold, there are many new prospectors out in the hills all over the United States, and while we would all prefer to be finding those larger nuggets, it doesn’t always work that way. Sometimes all that is available is nothing more than a few small flakes. The truth is, new prospectors are sprouting up all across the planet—especially in the developing nations.
Placer Gold Deposits of Utah
The placer deposits of Utah occur in two distinct types of environments. These are 1) placers found adjacent to, and derived from, gold, silver and base-metal deposits; and 2) placers found in major rivers and derived from unknown, distant sources.
Volume is the Key to Success
While recovery rates are important, they must necessarily be secondary to the volume of material processed. Running more material at lower recovery rates is generally preferable to increasing the efficiency of the system.
How Topography Affects Prospecting for Gold
Keeping in mind how the local topography affects where gold has been deposited can help you find more gold, and is certainly something the prospector needs to keep in mind.
Sixteen to One Gold Mine: Going Underground - Pt II
We descended hunched over, down a long, steep, wooden staircase to the 1,000-level.
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The Bawl Mill
• Mining Claims—What to Know Before You File
• Small-Scale Concentrating and Recovery Methods
• 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
• Proposed Regulations for California Suction Dredging
