All Articles
Epithermal Gold-Quartz Veins
January 2004 by Edgar B. Heylmun, PhD
The great mining geologist Waldemar Lindgren used the word “epithermal” to describe a type of quartz vein commonly found in desert regions of the United States and Mexico.Additional articles that might interest you...
Utah Mining History Being Erased
September 2008
The history of an important and prominent semi-ghost town of Eureka, Utah has been targeted by the Utah Department of Oil, Gas and Mining (DOGM) for immediate reclamation of “abandoned” mining sites.
The history of an important and prominent semi-ghost town of Eureka, Utah has been targeted by the Utah Department of Oil, Gas and Mining (DOGM) for immediate reclamation of “abandoned” mining sites.
In Pursuit of Gold & Silver in the Sierra Madres—The Tejeda Mines
April 2007
One of our claims, “concessions” in Spanish, lies atop a mountain approximately 15 miles Southwest of our Pueblo. It is reached by a dirt track that starts in Arivechi. We leave the Pueblo and drive up...
One of our claims, “concessions” in Spanish, lies atop a mountain approximately 15 miles Southwest of our Pueblo. It is reached by a dirt track that starts in Arivechi. We leave the Pueblo and drive up...
Greenstone and Gold
September 2013
Contacts, faults and zones of weak rock are all places that can act as a pipeline to convey gold-bearing fluids, leading to valuable deposits.
Contacts, faults and zones of weak rock are all places that can act as a pipeline to convey gold-bearing fluids, leading to valuable deposits.
WSGS Releases New Geologic Maps
December 2011
The Wyoming State Geological Survey announced ten new geologic maps have been completed and are now available.
The Wyoming State Geological Survey announced ten new geologic maps have been completed and are now available.
Alternative Gold Leaching Methods
January 2014
The ideal leaching chemical would leave behind what we don't want or need in the ore and take only the valuable metals.
The ideal leaching chemical would leave behind what we don't want or need in the ore and take only the valuable metals.
Letter to the Editor
September 2000
In the August 2000 issue of the Journal, the story of the "Quartszite Area" was most informative and accurate.
In the August 2000 issue of the Journal, the story of the "Quartszite Area" was most informative and accurate.
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The Bawl Mill
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