All Articles
Prospecting With a Magnetometer
December 1999 by Edgar B. Heylmun, PhD
Swedes were the first to note variations in the Earth's magnetic field, circa 1640, and they were the first to use the dip needle. They made the first magnetometer in 1870.
Ask the Experts
• Sweep speed and sensitivity settings for a GPX-4500
Ask The Experts
• Can I find enough gold to make a living with only hand tools?
Prospecting for Gold at Green Valley
In October, five of us decided to take an exploration trip into an area called Green Valley. This was perhaps ten miles upstream from where we had gone in September and the difficulty was access. One would think that based on the name it was an easily accessible area not far from a nearby town. This couldn’t be more wrong.
PLP President Intervenes on Behalf of Dredgers
Jerry Hobbs, president of Public Lands for the People, is taking action to prevent undue restrictions on miners utilizing suction dredges in California.
Interview With A Coho Salmon
We’ve obtained the rights to publish this exclusive interview conducted on the Klamath River between David, an environmental activist, and a Coho salmon.
Gryphon Gold and the Borealis Project
Strange things do indeed occur. Here we were in western Nevada’s Walker Lake District, normally one of the driest areas for mining operations in America, and we couldn’t access a sizeable portion of Gryphon Gold’s project areas due to...
The Bawl Mill
• Training to be greener...but still unemployed
• By the Numbers
• Notable Quotes
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The Bawl Mill
• Over the Divide
• Our Readers Say
• Desert Phone Trashed
• ICMJ Elected Prospecting Magazine of 1999
• Advertising Manager Leaving ICMJ
• Guest Editorial—California "Special" Dredge Permits in Jeopardy
• The Search Continues
• Guest Editorial: U.S. Government—Like Nobody's Business
• Circulation and Collections Manager Leaving ICMJ
• Company Notes
• House Chair Requests Records on Forest Decision
• BLM Wants to Withdraw South Pass Public Land
• Silverton Preserving Lofty Symbol of Mining Era
• Hijackers Make Off With 660 Pounds of Gold
• 1999 Tables of Content
• Lighting the Way Underground 1860-1940s
• Millie's Tailings
• Picks & Pans: Crevicing & Sniping for Placer Gold
• Looking Back
• Gold in Sonora
• Forest Service Boss Quits in Bull Trout Flap
• Melman on Gold & Silver
• European Gold Miners Seek Clarification Letter
• Mining Stock Quotes and Mineral & Metal Prices
• Squeezing Diamond Into Graphite
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