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Prospecting & Detecting

Prospecting on the North Yuba

The research I did for “Gold in the Slate Creek Basin” (September 2011 issue) found me chasing a channel out of the LaPorte territory headed towards the old mining town of Brandy City, California.

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Additional articles that might interest you...

Detecting Alluvial Bench Deposits


The same questions you ask yourself about gold trapping features in the present stream can be applied to the benches above the stream. Just imagine the stream at a much earlier time, before it cut its way down to the present level…

Early Winter Detecting in the Sierras


The mine site consists of river gravels from an ancient channel covering over 20 acres, and the place is covered with very large river rock and small tree overgrowth.

Going Over Old Ground With Newer Technology


When we got set up and I started to swing the coil over a small mound, I got a good signal, faint but repeatable.

Gold Placers in Italy


Gold is a fairly widespread mineral in the Italian Alps and in the Northern Apennines. It is found both in primary mineralization and in past and recent floods.

Attention to Detail - Part II


Ditches almost always started in the high country and contoured the mountainsides, making a long drop, usually many miles away, to the goldfields. There are ditches in Trinity County that originate at seven and eight thousand feet in the Trinity Alps that carried water almost thirty miles.

Why Assaying Placer Gold Deposits Doesn't Work


Let’s set up a thought experiment: Suppose you had some material that ran one ounce per ton gold, which is generally considered high grade to fantastic grade depending on the circumstances.

Cold Water Gold


It was June 2011, and my wife Fran and I with Grandson Lucas and good friend Ernie Cruz were attempting to get to our gold mining claim on the Middle Fork of the Feather River about ten miles from Quincy, California. Rain had poured down in the previous few days and the road in a large number of low places was under water. Following two hours of slugging through the mud...

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