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...

Ask the Experts

February 2015
• Drones for the independent prospector

Mud Men: Pocket Miners of Southwest Oregon Part II

March 2011
How many more clays seams lie adjacent to known shear zones and quartz veins in the pocket areas of southwestern Oregon?

Selectable Frequency vs Multi Frequency Detectors

March 2017
I like to think in terms of “conductive mass” because it is a combination of both the conductivity of the metal and the size of the target that determine how a detector sees conductivity.

The Art of Underwater Nugget Shooting

February 2016
There is a surprising amount of detectable gold under the water’s surface. The right tools make it much easier to find, and with a little patience and practice you can take advantage of this underappreciated bonanza.

Fall Drywashing—Just the Right Time of Year

November 2018

I could see lots of quartz, both loose on the hillsides and in the numerous small prospect diggings. There was a small gold rush here more than a century ago.

Montana Gold and Sapphires Revisited

November 2019

I had a chance to visit the operation in person and talk with Neal. I was very impressed and I think our readers could learn a lot about building up a commercial placer operation from scratch…

Research and Fieldwork Yield Some Promising Gold

October 2013
A week later, a small team of us hit it again, and this time the gold really showed up.

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