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Hillside Placers
July 2003 by Edgar B. Heylmun, PhD
Hills and mountains that contain gold deposits will weather and erode over a long period of time, and the eroded material will move slowly downhill. Frost wedging and roots are two of several agents that can cause bedrock to be fractured and...
Legislative and Regulatory Update
• "Scared" Indian sites and Glamis gold
• Regulatory Flexibility Act
• Miner Acquitted
• Environmentalists at it again in Oregon
• Miner owners want high court to overturn ruling
• More of the same from the EPA
The Wild Rush to Find More Cobalt—Part I
While some future cobalt will come from recycling lithium batteries and other products, the coming huge need for cobalt is virtually a perfect storm of heavy demand and insufficient supply.
The Lost Silver Triangle of the Sierra Madre—Part II
Newspaper stories in the spring of 1887 credited Lieutenant Henry O. Flipper with discovering both the long-lost Guaynopa and Tayopa mines. Flipper was in Mexico City in late April and May and a reporter interviewed him.
The Gold Hill and Iowa Mine 1895-1938
Mining was curtailed at the Gold Hill Mine in Quartsburg, Idaho, in September 1895, because the owners disagreed about the profitability of pumping large volumes of water from the workings and mining the sulfide ores encountered in the lower levels. In June 1896, the property was sold at auction to A. H. Boomer of San Francisco, California for $4,500. The following day Boomer deeded the mine to...
The Verde Copper-Gold-Silver-Zinc District, Jerome, Arizona
When I was a student in the College of Mines at the University of Utah, the Verde district was used as an exploration model for “submarine volcanogenic massive sulfide deposits.” So I looked forward to visiting this district and the town of Jerome in central Arizona in the spring of 2012.
European Gold Miners Seek Clarification Letter
Three European gold mining companies want the Bank of England to publicly state its activities in the gold and gold derivitatives markets. In a letter to the Financial Times, three small mining companies representing the majority of European gold production said since the start of the year, scores of reports about manipulation of the gold price had surfaced.
NMFS Official Admits Bogus ESA Analyses
In its typical ham-handed approach to limiting government power, Congress specified that “critical habitat shall not include the entire geographical area which can be occupied by the threatened or endangered species”...
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The Bawl Mill
• Our Readers Say
• PLP Members Win Occupancy Case—Appeals Continue
• Prospecting for Iron in Alaska
• Gold Deposits in Skarn
• Picks & Pans: Highbanking on the American River
• Platinum Firm, Palladium to Remain Weak
• Spencer Opal Deposits, Idaho
• Company Notes
• Elko Mining Expo a Success
• Gold Prospecting in Alberta
• National Mining Hall of Fame to Induct Six
• Mining Stock Quotes and Mineral & Metal Prices
• Melman on Gold & Silver
• Looking Back
