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Historic Mining at Mount Diablo, CA
September 1999 by Richard H. Peterson, PhD
Located in Contra Costa County in the East Bay region of the San Francisco Bay Area, Mount Diablo was the site of the largest coal mining operation in the state in the last half of the nineteenth century. The northern foothills of the mountain produced nearly four million tons of coal.Ask the Experts
Q: Will my detector react to fine gold?
Journeys in the Kingman Quadrangle—Part IV
The lands that lie within the Arizona section of the Kingman Quadrangle are by far the most populated. Kingman and Bullhead City are the largest towns in the area, having a combined population of about 58,000 people.
Over the Divide—Robert Michael “Mike” Corbley
Mike was...featured on our November 2013 cover after he achieved his dream of recovering several huge nuggets...
Court: Kennecott Eagle Minerals Application Complete
The Michigan Court of Appeals overturned a lower court ruling that had blocked the state Department of Environmental Quality from deciding whether to issue a permit for a nickel and copper mine in the Upper Peninsula.
The Public Process—Getting Involved and Making a Difference
The purpose of this article is to give you a short overview of how to get involved in the management of your public lands. By no means can everything about public participation be covered in one short article, but you will find...
Company Notes
• AZCO Mining Inc.
• Great Quest Metals Ltd.
• Royal Gold, Inc.
• Altair International, Inc.
• Vista Gold Corp.
• Placer Dome
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