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Prospecting With a Magnetometer

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.

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Understanding and Prospecting Benches


The most obvious benches are usually near the valley floor, but they can be thousands of feet above the valley floor. Since benches were made by streams, they can contain placer deposits.

That Something Extra


The something extra is adventure. I thank God for my gold fever. It has made so much of this adventure possible and caused my path to cross with many persons who have left fond memories indelibly imprinted in my memory.

Calico Mine


During the summer break of my first year of college in the late ‘50s, I was unemployed and bored, so my friends and I decided to do some gold mine exploration. We used to read a magazine called Treasure and had a good idea of where all the gold mines were located.

Ask the Experts


Q: Does anyone know of an electrowinning instrument that will plate (heavy plate) rhodium and iridium? I have both in solution. (Solution content = 262.9 oz/ton of iridium; 14.9 oz/ton rhodium.)
If I have precious metals in solution in bulk, say 620 to 1,000 gallons, is there a facility to extract the precious metals out? If so, can each be isolated?

Gold Coin Sales Boosted by Low Prices


During the past decade, gold prices have been on a serious roller coaster ride. This year, the ride has taken a turn for the worse—straight down hill.  Members of the precious metals mining industry have been hanging on as tight as they can.

Permit Appears Likely for Rock Creek Mine


The final environmental review for a proposed mine beneath the Cabinet Mountains Wilderness appears, after 14 years, to favor allowing the hotly disputed mine to proceed.

Company Notes


• Pan American Silver Corp.
• ESG Canada
• Vista Gold Corp.

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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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