Choosing The Right Detector Coil
June 2008 by Chris RalphEvery machine has its own adjustments and settings, but one of the most important ways to increase the capabilities of whatever detector you own is through the use of accessory coils.
Behind every diamond engagement ring, every diamond earring, every glittering, multicarat expression of true love once loomed the shadow of De Beers, the cartel that controlled—and, some argue, created—the international diamond industry.
In 1880, Alexander Roby Shepherd, former governor of Washington, DC, prepared to move his wife and family of six children to the wilds of the Sierra Madre. Going with him would be mining men, cooks, assistants, a bookkeeper and others to assist in the new adventure.
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Pumps can be set up quite a distance away horizontally from the sluice, even hundreds of feet. It will work so long as there is sufficient water at the source where the pump is located. Vertical distance is more of a problem than horizontal distance; 30 to 40 feet is the maximum vertical climb for most pumps.
In Chile, the trapiche (tra-peach-ee) method of milling gold ore began more than 400 years ago. The first trapiche, also known as a Chilean mill, was a stone wheel weighing two or three tons rotating on an axle.
Mapping geology underground is not difficult if one knows the procedures. This article presents the procedures that will allow any miner to produce a geologic map of their workings.
The Forest Service wants a two-year ban on new hard-rock mining claims on 429,000 acres of national forest land on the eastern slope of the Rocky Mountains in Montana.
The Bawl Mill • Our Readers Say • Platinum Alley—The South American Zone of Wealth and Adventure • Washington Gold Miners Receive Ecology Award • Internet Scams • Becoming A Nozzle Master • Slug Gulch • Gold Deposits of Georgia • Mining the Old-Timers • Prospecting Adventures—Pure Gold • Legislation Would Require Palladium Coin • Record Gold Prices Prompt Gold Mining In Boulder • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Looking Back