Prospecting & Detecting
Detecting the Hills of Hornitos
June 2023 by Ray Mills
Placer Sampling for the Small-Scale Miner
I have seen many samples taken originally with an eye toward getting the highest grades possible, but later someone claims that those results represent an average grade of the whole gravel deposit.
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.
Sharing Gold Fever with a Friend
While sitting there, I wondered if I should go over the hole again. I did and got a louder signal that turned out being about another twelve inches deep.
Hunting for Gold in the Quartzsite Area of Western Arizona

Old Mine Sites and New Technology
We’ve had two trips to the deserts of Nevada and explored mines and mill sites, hiked miles of ravines in California, and swung our detector coils over thousands of square yards of bedrock.
Subscription Required:
The Idaho Gamble Part 2
• The April Fools Nugget
• Havin' Fun at the Uranium and Gold Mines
• Underground Blasting at a Gold Mine. '3...2...1...Fire in the Hole!'
• Resource Maven Independent Analysis of the Resource Markets
Free:
The Bawl Mill
• Legislation and Regulation
• PLP Update
• ICMJ Visits Sonora, CA