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Small Mining Operations

Prospecting for Copper—What to Look for on the Outcrop

For the prospector, knowing what oxidized hydrothermal alteration looks like in the field is an important exploration tool.

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Addressing EPA Overreach: What Dredgers Need to Know


The Environmental Protection Agency (EPA) has been attempting to extend their authority and intimidate miners and other public land users for decades. Suction gold dredgers are no exception, and we want to highlight a recent example of how to deal with this federal overreach.

A Few Methods for Sampling Hardrock Deposits


With a little homework and a methodical approach to sampling, a prospector can determine if a deposit is worthy of more of an investment...

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.

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.

Wilfley Tables—Repair, Rebuild & Set Up


I researched the Internet and found a number of table makers, but technology has changed in the last 25 years. No one could sell me a kit for a new deck with wooden riffles...

Sixteen to One Gold Mine: Unique Challenges and Potential Rewards - Pt I


Many of the Sixteen to One’s challenges arise from its unusual geology and the pocket characteristics of the ore deposits.

What To Look For—And Look Out For—In A Placer Mineral Report


Buying a placer claim or investing in a placer mining property comes with plenty of financial risks. You need as much information as possible about the mineral deposit in order to minimize those risks.

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The Bawl Mill   • Ask The Experts - Where can I obtain chemicals for flotation?   • Ask The Experts - Can I get an update on your efforts in DC?   • Ask The Experts - What equipment do I need to enter an old lode mine?   • Hard Work Pays Off On Hard Rock   • The Mysterious Telluride Minerals   • Detecting: Getting Away From The Heat And Into The Gold   • The Coolgardie Gold Mining Camp of Southern California   • Gold Prospecting for Better or Worse: How Curiosity Burst My Platinum Bubble   • Dredging Tips and Tricks: A Measure of Water Pump Efficiency   • Hard Rock 101: Small-Scale Blasting   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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