All Articles
Gold in China
July 2004 by Edgar B. Heylmun, PhD
China is an enormous country, behind only Russia, the United States (incl. Alaska), and Canada in size. It has a teeming population of 1.3 billion, far ahead of any other nation. Most of the population is jammed into the eastern half of China, with the western half being only sparsely inhabited. There are 5 western provinces...Gold Deposition and Gradients of Placer Streams—Part I
When placer miners from the gold rush era began experimenting with the slope of their sluices, they must have pondered the ideal slope for trapping gold in a creek bed too. Logic suggests the same is true for streams...
Silverton's Gold
Within this area, about two million ounces of gold and fifty million ounces of silver have been mined. Faults, dikes, veins and fissures that carry the ore form a concentric radial pattern—like spokes on a wagon wheel—around the caldera core.
The Significance of Boulders in Placer Deposits
The good news about boulders is they can trap heavy minerals. The bad news is moving them out of the way can be a real struggle.
Prospecting for Platinum in Wyoming
Prospectors and rock hounds should consider searching for platinum-group metals, as these metals are the most precious of the precious metals. Several localities have been identified where these metals have been identified In anomalous amounts.
Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Study Confirms Mercury Levels Safe in California's Gold Country
While the Water Board documented the selenium levels in fish and noted they exceed the levels of mercury, they have yet to acknowledge the numerous scientific studies that show selenium effectively neutralizes the effects of mercury.
The Golden Highway—Nevada County
Highway 49—the “Golden Highway”—heads northeast out of Placer County into a stretch of Nevada County that is almost as busy as it was during the Gold Rush. The neighboring towns of Grass Valley and Nevada City are still booming—a beautiful location to live in the Sierra foothills.
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The Bawl Mill
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