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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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Additional articles that might interest you...

Prospecting on the North Yuba


The research I did for “Gold in the Slate Creek Basin” (September 2011 issue) found me chasing a channel out of the LaPorte territory headed towards the old mining town of Brandy City, California.

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.

Pocket Gold


Once a seam is found it can be traced for miles in either direction. While you are tracing a clay line, you are looking for indicators. The indicators that I look for are ironstone, hematite, different color clays intermingled with the clay line, and a very iron-rich, brown gritty soil.

Gold Indicators—What to Look for in the Goldfields


Some of the items that I’m going to go over are outcroppings, ditches, exploratory trenches and contacts/surface materials. I am going to speak about each of the above items in as much detail as I can, and then towards the end of this article I will tie them together.

Detecting Alluvial Bench Deposits -- Pt II


Walking around the gulch and exploring the upper drainage, picking up different rocks and inspecting them with a good loop, and looking them up in a field guide of rocks and minerals of your region will help you understand how the gold got there.

Proper Placer Sample Processing


...your sampling procedures should not be designed to catch gold your mining technique will never recover.

An Alaskan in the Lower 48


Our destination was some old hydraulic workings where the old miners had washed literally mountains of material away to expose gold in ancient river channels.

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The Bawl Mill   • Sampling for Success—Part II   • Ask The Experts - Investing: How do you know which companies have potential?   • Miners Fight Back When BLM Says 'Your Claim Is Too Long'   • It's Another 'Ben Day'   • How to Research Prospecting Locations and Mining Claims   • Where Will The Gold Price Go From Here?   • Holcomb Valley Gold, Southern California   • Gold Prospecting for Better or Worse: The Good Luck and Bad Luck of Prospecting With Animals   • Lode Miner Continues to Find Pocket Gold   • Judge Backs Minnesota's Twin Metals Mine in Lease Dispute   • Over the Divide: Rick Lague   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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