Prospecting & Detecting
Using Countercurrent Material Flow to Improve Gold Recovery Efficiency
December 2020 by Keith Bowen
There is a material processing principle widely used in large milling operations to improve recovery that is poorly understood by most of the micro-mining and prospecting community...
That First Nugget
After getting all the gear together we headed up the old road that led us to an old ground sluice site. George and Kaleb were using lightweight VLF (very low frequency) detectors. I carried a newer technology unit that is just a tad coil-heavy in the front.
Nice Specimen Gold Recovered in Northern California
Each specimen is carefully examined to determine if it would be beneficial or not to use an acid treatment to reveal more of the gold.
Swing and a Miss
A very good baseball hitter might get a hit roughly one time out of every three at-bats, but for prospectors often the results are much sparser and it may take many trips before the prospector hits a home run.
Detecting in the Outback
I have always enjoyed finding things. As a kid and up through college I searched for arrowheads, rocks and fossils. One day I saw an ad for a metal detector in a magazine, and a week later I was digging up everyone’s yard...
Quit While You’re Goin’ Good
Then I came to a section of recently exposed gravel that looked unworked. Water seeped out all around, making the ground beneath a sea of slick mud.
Mining Journal Receives Honor
For the 20th consecutive year, ICMJ’s Prospecting and Mining Journal was voted “Prospecting Magazine of the Year”...
Mining Claims: Breaking All The Commandments
So, I took the plunge. I decided on the maximum I would pay for the claim, then placed my bid. A day later I received a congratulations e-mail that I was the high bidder, and oh, by the way, send us your money.
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• Reading A River: Understanding Erosion and Gold
• The Basics of Permitting and Bonding Your Mining Operation
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• Gold Prospecting for Better or Worse: The First Year Is The Hardest
• Mining In The El Paso Range of Southern California
• Tips and Tricks: A Dredging Tip for Clearing the Tailings Pile
• The Kern River
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