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History of Mining—Bradshaw Mountains, AZ (Part I)
November 2000 by Frank Lorey III
The Bradshaw Mountains, southeast of the old territorial capital city of Prescott, contain traces of many old mines and the railroads that were built to serve them.
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Oregon Governor Asks For Mineral Withdrawal
November 2009
Conservation groups hope to meld the three wilderness areas and surrounding parts of southwestern Oregon into one big wilderness covering 1 million acres—a move Kulongoski has endorsed.
Conservation groups hope to meld the three wilderness areas and surrounding parts of southwestern Oregon into one big wilderness covering 1 million acres—a move Kulongoski has endorsed.
Our Readers Say
May 2016
Quartz and Chalcedony in Wyoming
June 1999
Quartz is a common rock-forming mineral found in many shapes, forms, and colors.
Quartz is a common rock-forming mineral found in many shapes, forms, and colors.
Commercial Placer Mining With Jigs
August 2010
During the upward stroke, water is pushed up through the shot layer causing it to open up and lifting the gravel particles above. The heavier particles settle faster based on Stokes law, and move down into the shot bed layer, while the lighter...
During the upward stroke, water is pushed up through the shot layer causing it to open up and lifting the gravel particles above. The heavier particles settle faster based on Stokes law, and move down into the shot bed layer, while the lighter...
The Essentials of Dry Washing
August 2013
Most dry washers have a feed rate adjustment. It needs to be set so that the material flows evenly over the riffles and does not bury them.
Most dry washers have a feed rate adjustment. It needs to be set so that the material flows evenly over the riffles and does not bury them.
ICMJ Elected Prospecting Magazine of 2002
June 2002
ICMJ honored with prestigious award.
ICMJ honored with prestigious award.
Legislative and Regulatory Update
June 2011
• More roadblocks to dredging in California
• Two Oregon Sheriffs challenge Forest Service authority
• Gold is money
• More roadblocks to dredging in California
• Two Oregon Sheriffs challenge Forest Service authority
• Gold is money
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The Bawl Mill
• Our Readers Say
• Enrichment of Gold Veins
• The Assay of High Iron Gold Ores
• The Patch
• Picks & Pans—The Green Rock, Rattlesnakes, Good Gold and Ruth's Mine
• The Oretron
• Silver Hill, North Carolina
• Residual, Lateritic and Gossan "Soils" as Potential Nuggetshooting Sites
• Hardrock in Downieville
• Looking Back
• Company Notes
• Gold in Northern Baja California
• California State Gold Panning Championship Results
• Melman on Gold & Silver
• V.P. Contender Addresses Mining Show
