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Little Rocky Mountains, Montana
February 2000 by Edgar B. Heylmun, PhD
The Little Rocky Mountains are a group of wooded hills, 10 miles long and 8 miles wide, which form an island in the Great Plains of north-central Montana. They rise to 5,708 feet, 2,000 feet above the surrounding plains.
Flat-Fault Gold in Sonora, Mexico
Mexico is not noted for gold, but is better known for silver and copper. However, the states of Chihuahua and Sonora, in northwestern Mexico, contain some sizeable gold deposits. A number of these deposits were mined during the boom of 1982-2002. One operation that has remained active up to the present is La Herradura Mine...
How PGMs Affect Assay Beads
Most fire assayers are trained to observe the cupelled beads very carefully, noting any discoloring or surface roughness that might indicate that one or more of the platinum group metals (PGMs) are present. The “clues and tests” I have included in this article stem from several sources, including my 35 years of experience performing torch assays...
Legislative and Regulatory Update
- Welcome changes in Washington, DC
- Giving power back to the people
Melman on Gold & Silver
There is one last indicator that I believe may be the most important of all. That is the “Index of Leading Economic Indicators” (LEI), which is a compendium of those economic indicators that point toward future growth, and LEI has just reached historic highs, far exceeding previous peaks in 1999 and 2006.
Ask The Experts: Can you review the differences in dry washers?
Q: What are the advantages or disadvantages of hand crank vs. battery power vs. blower? And your preference?
Bigger and Better—Gold Prospecting & Mining Summit Recap
Our second year’s Summit, held over five days in mid-May, was even bigger and better than last year’s gathering. We had more vendors, more hands-on classes and a very full slate of lectures and presentations. Over 2,300 prospectors attended...
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The Bawl Mill
• Clinton Declares Three More National Monuments
• McCain Derides Clinton Forest Policy
• Foreigners Lure Mining Partners
• Pacific Island Gov'ts Focus on Undersea Mining
• Options Narrowed for Managing Chugach National Forest
• Company Notes
• Diamond Fever
• Gold in Jasperoid
• Underground Geologic Mapping
• New Quarry Regulations in West Virginia
• Ash Fork Calm After Explosives Theft
• Picks & Pans: Mining in Ghana
• Collector Reaches New Lows to Find Bottles
• Chinese Camp, California and the Tong War of 1856
• Millie's Tailings
• Visionaries, Scoundrels, and Gamblers
• Executive Defends Special Mill Site Exemption
• Chasing the Ghosts of Forty-Niners
• Washoe County Balks at Black Rock Desert Plan
• State's Only Gold Mine Processes Last Precious Ore
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
