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?

Search Coils and Techniques

May 2014
This article is intended to try to help someone who is breaking into gold detecting and using a pulse induction (PI) detector.

A Model Mining Operation

August 2014
After he excavates the ore down to bedrock, he goes over the bedrock with a metal detector to ensure he didn't leave any gold behind before he backfills the area.

A Father and Son Prospecting Adventure

May 2013
As I write this, I am still on a rush from taking my 9-year-old son, Jeffrey, prospecting for the first time this past weekend. It’s not that he hasn’t been along on numerous outings before: this is the first time that just the two of us went out for a day of drywashing and detecting under the desert sun.

What, Where and How for the New Prospector

September 2013
How to go about the entire process of prospecting is a big question. The answer comes down to research and preparation.

Sampling Placer Stockpiles

August 2013
Sampling other people's stockpiles or dumps has some inherent risks that sampling undisturbed ground does not have.

Diamond Prospecting in Indiana

January 2015
My first personal experience with placer diamonds was on a gold prospecting trip in Indiana about 8 years ago, when a fellow prospector was cleaning his gold concentrates.

Using Structural Clues to Locate Buried Placer Channels

April 2014
They must have assumed the paystreak was spotty and had been mined out, so they never mined as close to the side of the valley as they should have.

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