All Articles
The Trapiches of Chile
October 2000 by Dr. Ralph E. Pray
In Chile, the trapiche (tra-peach-ee) method of milling gold ore began more than 400 years ago. The first trapiche, also known as a Chilean mill, was a stone wheel weighing two or three tons rotating on an axle.Additional articles that might interest you...
Prospecting For Gold—The Osborne/Herman Hardrock Mine
August 2007
We’re always out there looking, checking, researching and trying to locate a new prospect or deposit. It’s always a question as to where to start. Some days we head down to the river to do some panning, sluicing or dredging.
We’re always out there looking, checking, researching and trying to locate a new prospect or deposit. It’s always a question as to where to start. Some days we head down to the river to do some panning, sluicing or dredging.
Aussie Gold—Swinging Over to South Australia
April 2002
Since the founding of the original colony in 1836, minerals have proven a vital resource to fund the State’s development. Originally, copper was the lifeblood, being discovered not long after settlement.
Since the founding of the original colony in 1836, minerals have proven a vital resource to fund the State’s development. Originally, copper was the lifeblood, being discovered not long after settlement.
The Bawl Mill
January 2007
• Take the money and run...
• Blame it on the kid
• A cheap dinner date...
• For the couple who has everything...
• Take the money and run...
• Blame it on the kid
• A cheap dinner date...
• For the couple who has everything...
Looking Back
May 2001
Excerpts from CMJ, our original title, published 50 years ago this month.
Excerpts from CMJ, our original title, published 50 years ago this month.
Legislative and Regulatory Update
January 2009
• A bumpy ride for miners...
• Speaking of climate change...
• "Recreational" mining
• A bumpy ride for miners...
• Speaking of climate change...
• "Recreational" mining
A Few Tips and Tricks for Beach Mining
June 2015
When you think about the extremes to which a miner will go to get a little gold, it occurred to me beach gold could be "easy pickings."
When you think about the extremes to which a miner will go to get a little gold, it occurred to me beach gold could be "easy pickings."
Ask The Experts
March 2016
Options for affordable crushers for small mining operations
Options for affordable crushers for small mining operations
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The Bawl Mill
• A Word from the Editor
• Under the Guise of Environmental Protection—EPA Revealed
• The Centennial Lode and the Centennial Ridge District, Wyoming
• Company Notes
• Picks & Pans—In Search of Nome Creek Gold
• Massive Sulfide Deposits in Oregon
• Recreational Dredging on the South Yuba River
• Tales of Liberty Gold
• Drywashing Alluvial Placers
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
