All Articles
Epithermal Ore Deposits Associated With Tertiary Volcanism—And the Feasibility of Metal Detecting for Them
December 2000 by Jim Straight
Epithermal ore deposits are common in regions of late volcanic activity, especially areas associated with Miocene and later Pliocene extrusive volcanics that have not been deeply eroded since the ore was deposited. Many are simple fissure veins, but stock-works and ore-pipes are also common.
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Growing Pains of the Learning Curve
January 2009
Interestingly enough, when I first started to think about writing this article I was listening in on a conversation my wife was having with our nine-year-old twin boys. Just to add some clarification to the subject, I spend a large proportion of my time out in the...
Interestingly enough, when I first started to think about writing this article I was listening in on a conversation my wife was having with our nine-year-old twin boys. Just to add some clarification to the subject, I spend a large proportion of my time out in the...
Paleoplacers in the Black Hills
September 2002
The Black Hills of western South Dakota are domal mountains that rise to 7,242 feet near Mt. Rushmore National Monument. Annual precipitation reaches 28 inches, enough to support winter sports and pine forests.
The Black Hills of western South Dakota are domal mountains that rise to 7,242 feet near Mt. Rushmore National Monument. Annual precipitation reaches 28 inches, enough to support winter sports and pine forests.
Mine President Seeks Opinions From Peers
August 2004
Everyone in the United States will be affected by the Company’s appeal before the United States Court of Appeals Ninth Circuit, in San Francisco, California. The issue is more than just a mining one. It involves the legality of the imposition by one federal agency and a couple of its employees to define and designate the management of an American business.
Everyone in the United States will be affected by the Company’s appeal before the United States Court of Appeals Ninth Circuit, in San Francisco, California. The issue is more than just a mining one. It involves the legality of the imposition by one federal agency and a couple of its employees to define and designate the management of an American business.
Ask The Experts—What Should I Do Next With This Quartz Vein?
March 2009
I don’t know what to do next. Should I get an assay of the quartz? Can you recommend someone? Should I somehow crush the rock & search for a gold vein? Am I just wasting my time?
I don’t know what to do next. Should I get an assay of the quartz? Can you recommend someone? Should I somehow crush the rock & search for a gold vein? Am I just wasting my time?
Benton’s Rich Silver
October 2008
Prospectors looking for the next Comstock Lode tried mining for silver in the Benton Hot Springs area in California in 1862. On a ridge southeast of the town, they found what they were looking for—rich hornsilver.
Prospectors looking for the next Comstock Lode tried mining for silver in the Benton Hot Springs area in California in 1862. On a ridge southeast of the town, they found what they were looking for—rich hornsilver.
Lost Sally's Gold
December 2015
She said a few thoughts did cross her mind at the time; she thought maybe she should have looked more thoroughly for that hand-drawn map to the claim that we had given her the previous year.
She said a few thoughts did cross her mind at the time; she thought maybe she should have looked more thoroughly for that hand-drawn map to the claim that we had given her the previous year.
Sunnyside, Arizona
March 2000
The little-known Sunnyside district in Cochise County, Arizona, is on the southwest side of the Huachuca Mountains, which reach elevations in excess of 9,000 feet.
The little-known Sunnyside district in Cochise County, Arizona, is on the southwest side of the Huachuca Mountains, which reach elevations in excess of 9,000 feet.
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The Bawl Mill
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• History of Mining—Bradshaw Mountains, AZ—Part II
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