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Small Mine Selective Blasting
January 2000 by Dr. Ralph E. Pray
Drill holes in a mineralized vein often penetrate hidden layers of poor ore which, after blasting, end up diluting the production quality. Disseminated gold ores carrying two ounces per ton may be identical in appearance to adjacent vein material...
The Bawl Mill
• Three strikes and you're out!
• Your share of the National Debt
• April 15 wasn't just the deadline for taxpayers
Legislative and Regulatory Update
• BLM Proposes suspension of 3809 regulation changes
• Monuments addressed by new administration
• Progress made on Clinton's Roadless Rule
• Changes at USFS
• Federal agencies pull back salmon biological opinion
East Coast Dredger Heads West - Part II
I wandered back across the river, wading through the rapids and slipping at least three more times. I couldn’t believe how slick these rocks were! Once on the other side, I sat down for a few moments to review my plan of attack and lick my wounds.
2006 US Gold Panning Championships
This year’s US Gold Panning Championships were held in Gold Bug Park, in Placerville, California. The competition site was set in the park’s pavilion among the trees and adjacent to the stream that runs through the park.
Successful Nugget Hunting
Then it appeared. A 64-inch rack on the giant moose silhouetted against the sun. Bernie had waited for the large creature to come out into the open. He raised his bolt action Remington .338, took aim, and pulled the trigger.
Countries Want More Concessions From Miners
Bulgaria has followed the recent moves of Mongolia and Venezuela, demanding renegotiation of existing agreements and more concessions from mining companies.
Drilling for Ore
In the simplest sense, drills can be divided by their mode of action—percussion, rotary or a mixture of the two.
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The Bawl Mill
• Over the Divide
• Our Readers Say
• Letter from the Editor to our Readers and Advertisers
• Administration Considers Bypassing Congress
• First Woman to Draw Mining Pension
• Mohave Mountain Placers, Arizona
• High Court to Reconsider Wilderness Water Rights
• Sixteen to One Takes on MSHA
• Picks & Pans: Gold Mining on Joie Osgood Ranch
• Gold
• Company Notes
• Millie's Tailings
• Placer PGMs in Alaska
• Mogollon—New Mexico's Remote Gold Camp
• ICMJ 9th Annual Photo Contest Results
• The Other Minerals of Mt. Diablo
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
