Some Tips and Tricks for Dredgers: Determining Pulley Size and Belt Length

April 2020 by Harry Griffin

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.

Ask the Experts

November 2012
Heading for Australia to metal detect for gold. Tips? Suggestions?

The Fine Art of Panning Heavy Sands

October 2011
The fine art of panning heavy sands requires a measure of patience. If you enjoy panning gold, you ought to enjoy this too, once you get the hang of it.

Tips for Effective Drywashing

January 2011
Back in October I read with great interest Chris Ralph’s article on the use of a metal detector while drywashing, and I wholeheartedly agree—I wouldn’t even consider going drywashing without using a metal detector in conjunction...

Prospector's Guide to Rock Breaking and Blasting

December 2016
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.

The Mineral Range Districts of Utah

January 2019

Most of the commercial mineral deposits are on the south and southwest part of the range between Minersville and Milford, though small amounts of gold and silver have also been found in iron-rich outcrops in the basalt to the south of Milford.

Old Dog(Fighter), New Trick

June 2022

Then it occurred to me that the drywasher was designed by an engineer. Gotta love engineers! Those slide-rule geeks always tinker with gravity, angles, curves and flow.

Give That Club Claim A Chance

August 2015

My first trip to the claim was the tip-off that there might be larger gold to be found. I brought my puffer drywasher and my dad to a local prospecting club outing that was held at the claim.

Subscription Required:
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

Free:
Over The Divide: Kenneth Leon Harn   • PLP Update   • Legislative and Regulatory Update