Prospecting & Detecting
Sampling Placer Stockpiles
August 2013 by Jim Halloran
Sampling other people's stockpiles or dumps has some inherent risks that sampling undisturbed ground does not have.
Trying Out the New Highbanker
The 2011 gold season had finally got underway on the Middle Fork of the Feather River near Quincy, California. Cold weather and high water had pushed gold mining into mid-summer, but things were looking up.
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.
Uncovering the Find of a Lifetime
• The 75-ounce Butte County nugget is the largest found in California since the 156-ounce Mojave nugget in the 1970s...
A Successful Trip Through Gold Basin
This time we took the detectors. Roger had worked that spot very well and wanted to see if my new detector would uncover any gold he might have missed.
Detectors Versus Pans
Mike scored the best with a total of one-half ounce of gold nuggets. Tom, Brian and Greg each had pieces in the one and a half pennyweight range. The rest of us had small gold and nothing like these three.
Cold Alaskan Gold—Part I
Crowds may be great for football games or the Fourth of July, but not for prospecting. So, this summer, while thousands of gold seekers were heading to the coast of Alaska, I headed to a remote part of the Interior.
Excavator Testing Wet Placer Ground
The excavator or backhoe has become the tool of choice for testing placer ground. These machines are the best way to explore and sample a placer deposit if the ground is not too wet or frozen and bedrock is not beyond the reach of the machine.
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