Prospecting & Detecting
Dredging Tips and Tricks: A Measure of Water Pump Efficiency
August 2020 by Harry Griffin
…as an academic argument, when mated to the appropriate engine, is the pump really moving water at the rate of 400 GPM?
Residual Placers: An Often Overlooked Gold Source
Because the forces of erosion and gravity tend to carry lighter materials like quartz away more easily, the heavy minerals like gold or silver will tend to be concentrated in the general area around the vein outcrop. These concentrations are what make residual placers so attractive.
Butte County: Another Mother Lode Favorite
There are so many places in this region to discuss that one article won’t be enough to cover it all, so I’ll focus on a couple of places that we found interesting while searching for gold.
Tips for Detecting Old Hydraulic Pits
![](http://icmj.com/userfiles/images/201210/TOC-hydraulic-pits.jpg)
Comments on Gold Rush and Bering Sea Gold Series
The 316 Mining Company has not been all that successful, but does not ever seem to learn from their past mistakes.
How Long Does It Take to Find and Recover An Ounce of Gold?
Some ask if a prospector can collect an entire ounce in a day. It is possible; I’ve done it before.
Grizzly Flats, California—Another Mother Lode Gold Rush Town
We chatted for a bit and then we had to take off, but I kept what he said in the back of my mind as we rushed out to some other gold-bearing place in the Mother Lode to feed our gold fever.
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