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The Golden Triangle of Sonora, Mexico
May 2001 by Edgar B. Heylmun, PhD
The “Golden Triangle” dry placer district in Sonora, Mexico, lies some 80 to 100 miles south of the border. It is in desert terrain at elevations between 1,900 and 2,300 feet above sea level.
Mining Stock Quotes and Mineral & Metal Prices
Ask The Experts—Difference between a Geiger counter and scintillator
Would you explain the difference between a Geiger counter and a scintillator and how they operate in uranium prospecting?
Ask The Experts
Is a miniature spectrometer in our future?
Detecting at Old Hydraulic Mines
I finally got out recently for my first full, long weekend prospecting trip of the year. Normally I would have been out much sooner, but we had a real late spring in the Sierra Nevada this year with lots of late rain and snow continuing through all...
The Perfect Response
In May, 2016, the Andersons received a letter from Steve Niemela at the Oregon Department of Fish and Wildlife requesting access to their property to conduct surveys for “foothill yellow-legged frogs and other amphibians.”
Central Idaho Federal Employees Back to Work With Local Help
The fire started early October 4, destroying the Bureau of Land Management office on the edge of town within minutes.
Newmont Fined for Fatality
The agency said managers “showed a disregard for the miners’ welfare” and acted with “more than ordinary negligence” before the victim fell through a sinkhole while operating a large loader about 200 feet below the entrance of the mine.
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The Bawl Mill
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