All Articles
Gold in Sonora
December 1999 by Edgar B. Heylmun, PhD
The state of Sonora, slightly smaller in area than Utah, lies in-northwestern Mexico, adjoining Arizona to the south. It is characterized, on the east, by a high volcanic plateau, the Sierra Madre Occidental, which forms its boundary with Chihuahua.Special Suction Dredge Permits in Jeopardy
As we go to press, Horseshoe Bar Action & Research, a division of the Gold Country Miners small-scale mining club, brought to ICMJ's attention a potentially very significant problem for gold dredgers in California.
Legislative and Regulatory Update
• Roadless Rule revisited
• Kensington finally gets stamp of approval
• Interior places restrictions on mining claims near Grand Canyon
Gifts of Gold for University of Zimbabwe
The design of the makorokoza’s handmade wooden pans has not changed over the centuries. Until Rege introduced it to them they had seen nothing like a spiral wheel concentrator.
The Bawl Mill
• A jury of your peers...
• Jesus a vegetarian?...
• He was no Santa Claus...
• A thief with a conscience...
Our Nugget Shooting Adventure
Gold—a very elusive, heavy, yellow, metallic element—is coveted by man and not easily given up by Mother Nature. This is a story of a group of friends—old, new, and some I hadn’t met before this trip. We embarked on a journey in search of that yellow metal.
The Essentials of Dry Washing
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.
Subscription Required:
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
• Prospecting With a Magnetometer
• 1999 Tables of Content
• Lighting the Way Underground 1860-1940s
• Millie's Tailings
• Picks & Pans: Crevicing & Sniping for Placer Gold
• Looking Back
• 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
Free:
Legislative Update
