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The Bombarded 38' Parallel
August 2002 by Edgar B. Heylmun, PhD
A 1,200-mile long east-west zone, containing unusual geologic features, has been recognized in the eastern half of the United States for over 100 years. It coincides, in a general way, with the 38° parallel. There are as many opinions on the origin of the features as there are geologists. Most of the features are circular or oval in form, and some are concealed by younger rocks. They are found in 8 states, from Kansas east to Virginia.Additional articles that might interest you...
Company Eyes Reopening Mine Near Troy
January 2004
Revett Silver Company, formerly Sterling Mining Company, hopes to reopen a dormant copper and silver mine near Troy, Montana, in the next six months because higher copper prices have made the operation practical, an executive said.
Revett Silver Company, formerly Sterling Mining Company, hopes to reopen a dormant copper and silver mine near Troy, Montana, in the next six months because higher copper prices have made the operation practical, an executive said.
Tiffany & Co. to Open Plant in Northern Canada
January 2003
Tiffany & Co. plans to open its first diamond cutting and sorting plant early this year in conjunction with its investment in a diamond mine in Canada’s Northwest Territories.
Tiffany & Co. plans to open its first diamond cutting and sorting plant early this year in conjunction with its investment in a diamond mine in Canada’s Northwest Territories.
China Closing More Than 1,000 Mines
August 2016
It was only a few years ago that China was taxing and limiting quantities of exports for rare earths in an effort squeeze the market, drive up prices and extract the most in the way of income.
It was only a few years ago that China was taxing and limiting quantities of exports for rare earths in an effort squeeze the market, drive up prices and extract the most in the way of income.
Beryllium in Utah
June 2002
Much of the world’s supply of beryllium is mined by Brush-Wellman, Inc., at Spor Mountain, Utah. The district is in a harsh desert environment which receives only 6 inches of precipitation a year, barely enough to support scrubby desert growth.
Much of the world’s supply of beryllium is mined by Brush-Wellman, Inc., at Spor Mountain, Utah. The district is in a harsh desert environment which receives only 6 inches of precipitation a year, barely enough to support scrubby desert growth.
Conducting Research To Find New Gold Deposits
March 2008
...this time of year the days are short, the temperatures cold and the weather reliably poor. That’s why the middle of winter is the best time for me to be doing research to find new gold deposits and places to explore after the weather warms and...
...this time of year the days are short, the temperatures cold and the weather reliably poor. That’s why the middle of winter is the best time for me to be doing research to find new gold deposits and places to explore after the weather warms and...
Visionaries, Scoundrels, and Gamblers
February 2000
Ask leading historians to name Colorado's top 10 builders and the list quickly grows to 50 people. The list includes visionaries, scoundrels and gamblers.
Ask leading historians to name Colorado's top 10 builders and the list quickly grows to 50 people. The list includes visionaries, scoundrels and gamblers.
Picks & Pans: Dredging and Detecting in Sierra City
October 2003
Every year for the past several years I have taken a prospecting trip to Sierra City, California, to dredge on a friend’s claim. Sierra City is a historic gold rush town of a little more than 200 persons. Known mostly for its rich lode mines, it also had...
Every year for the past several years I have taken a prospecting trip to Sierra City, California, to dredge on a friend’s claim. Sierra City is a historic gold rush town of a little more than 200 persons. Known mostly for its rich lode mines, it also had...
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The Bawl Mill
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• Oregon Miners File Suit Against Fisheries Service
• BLM Land Swap Deal Raises Eyebrows
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• The Greenhorn
• Striking Gold
• Picks & Pans: The Trophy Hunt
• Corner Country Gold
• Something to Consider When You Go Dredging
• Western Mining Artifact Collectors Show
• Rattlesnakes
• The Gold Hill and Iowa Mine 1895-1938
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
