Prospecting & Detecting
Let Nature Help
September 2022 by Ray Mills
You’re out in the goldfields and searching for a spot that will possibly give up a gold nugget.
It Pays to Know Your Bedrock
On our last trip, we brought ropes and went down the first waterfall forty vertical feet, only to be confronted by a second, sixty-foot-high, overhanging waterfall that emptied into a slot canyon.
Ask the Experts
• What to prospect with on the Klamath River
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.
An Interview with Minelab Engineer Mark Lawrie
The design of metal detectors well-suited for prospecting is an interesting process and not necessarily an easy one to achieve. It is a combination that blends the desires of what prospectors would like, the requirements of sales people and dealers, with the science and physics of what the electronics can achieve.
Exceptions to the Rules: Re-Thinking Prospecting Rules of Thumb
Looking at the exceptions to the basic rules is sort of an advanced prospecting discussion, but the readers of ICMJs Prospecting and Mining Journal are plenty able to handle it.
The Perfect Summer

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• Grass Valley, Nevada City, Malakoff Diggings, Northern California
• Electronic Prospecting: The Hunt for Coarse Gold
• Glacial Prospecting Basics Part 1
• Gleaning for Gold Part 2
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• Blast From the Past
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