Prospecting & Detecting
A Golden Summer
November 2014 by Ray Mills

Greenhorn Finds Gold in Colorado

Using Structural Clues to Locate Buried Placer Channels

Old Water Channels Provide Important Clues
After washing the top sixty to ninety feet of gravel, the old- timers hit the bedrock. The bedrock paid one-eighth to one-half of an ounce to the square foot…
Benefits of a Detecting Partner

Rediscovering Placerville, California Part II
To get to the gold, the miners had to remove the shale pieces and stack them on the sides while sluicing the remaining material through their boxes.
Using Countercurrent Material Flow to Improve Gold Recovery Efficiency
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...
Proper Spacing of Placer Sample Sites
The zone of influence of each sample must be carefully considered when deciding how far sample sites should be spaced from each other.
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