All Articles
Wall-Rock Alteration
April 2004 by Edgar B. Heylmun, PhD
Wall-rock (country rock) alteration is found in all hard-rock mining districts and has been caused by hydrothermal solutions in the past history of the region. The zones of alteration have a bearing on where one might drill for ore bodies. The weekend prospector does not have the tools nor knowledge to block out ore deposits, but he can narrow down his search dramatically by understanding the zones of wall-rock alteration that he sees.MMAC & PLP Update
…what I’d like to focus on in this update is the assistance they provided to a suction gold dredger in Idaho being harassed by an environmental group.
Small Mines Bill Clears Committee
A bill that would relax current standards on small mines has passed a House committee.
Jim Madden's Gold
Maybe we could find a few pieces of ore from that tunnel? It was worth a try. The old timers didn’t have that stamp mill for looks, so we set off to get some samples.
The PATH to Tax Savings
Making it even semi-permanent allows any business that spends heavily on equipment, machinery and other business property to reap large, up-front tax breaks.
In Pursuit of Gold and Silver in the Sierra Madres—Establishing a Mining Company in Mexico
My wife Ann and I moved three years ago to the Pueblo of Arivechi, Sonora, in order to be near the mining concessions we owned and to build a precious metals concentrating mill.
Legislative and Regulatory Update
• "Recreational" mining bills in Washington State
• Three more national monuments
SB 838 and the Salem Witch Hunt
In every sense, this was a witch hunt with a preconceived agenda to heavily restrict or outright prohibit most small-scale mining in Oregon.
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The Bawl Mill
• Our Readers Say
• Wyoming—A Land That Time (And Explorationists) Forgot
• Two Arrested in Alleged Mining Investment Scheme
• Melman Reports From PDAC—News About India, China, and a Potential Shortage of Nickel
• Picks & Pans: Family's Identity Forged Working Nevada's Gold
• Researching Suitable Areas to Detect for Free-Milling Gold
• A Working Arrastra
• Training Videos From NIOSH
• The Golden Highway—Amador County
• Prospectores Unite in Washington State
• Flexible Circuits Possible From Gold Wire
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
