Prospecting & Detecting
Arizona Prospector Rescued from Mine Shaft
November 2018 by Associated Press
“I heard him hollering down in the hole as soon as I got there,” he said. “I was just glad to see him alive.”
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.
Buyer Beware! Counterfeit Metal Detectors
When I was recently in West Africa, I got to see and play with my first, phony, Chinese knock-off metal detector.
Fortymile, Alaska Prospecting Adventure
![](http://www.icmj.com/userfiles/images/201308/TOC-fortymile.jpg)
Gold Geochemistry: Where Does Gold Come From?
Prospectors often wonder why gold deposits in veins like it does. Why is one vein rich while another is barren, even though they are only a few hundred feet apart?
Sierra County Gold—Part I
![](http://www.icmj.com/userfiles/images/201312/TOC-Sierra-County.jpg)
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.
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• Fall Drywashing—Just the Right Time of Year
• Humble Beginnings
• Understanding Large Gold Deposit Types: Discovering New Mines
• Roads to Nowhere
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