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Ask the Experts—Where can I find plans for a home-built suction dredge?
May 2007 by Staff
Q: Years ago I had plans for building a home-built suction dredge called the Spartan dredge. I really loved that dredge. I now have a 12-year-old son who wants to start mining. We wanted to build our own at home but I’ve lost the plans.Additional articles that might interest you...
Adventure at the 420 Level
March 2000
Beneath the rolling fairways and manicured greens of a sedate golf course community in Cabarrus County, North Carolina, lie the 600-foot deep, water filled, caved workings of the once famous Phoenix Gold Mine.
Beneath the rolling fairways and manicured greens of a sedate golf course community in Cabarrus County, North Carolina, lie the 600-foot deep, water filled, caved workings of the once famous Phoenix Gold Mine.
Guanajuato Silver, Mexico
August 1999
For 250 years, the Guanajuato Mining District of Mexico produced 20% of the world's silver. The old colonial city of Guanajuato (pop.100,000) is wedged in a narrow canyon in the Sierra de Guanajuato, at an average elevation of 6,750 feet.
For 250 years, the Guanajuato Mining District of Mexico produced 20% of the world's silver. The old colonial city of Guanajuato (pop.100,000) is wedged in a narrow canyon in the Sierra de Guanajuato, at an average elevation of 6,750 feet.
Our Readers Say
May 2014
I really learned a lot from your step-by-step presentation and our "hands-on" observation of all the steps involved in mining...
I really learned a lot from your step-by-step presentation and our "hands-on" observation of all the steps involved in mining...
Small-Scale Mining, Milling and Recovery
December 2009
In 1997, I had been working a hard rock claim in Lone Valley, Nevada with two partners. It was a small seam about one to two inches wide that had free gold up to 9 ounces per ton.
In 1997, I had been working a hard rock claim in Lone Valley, Nevada with two partners. It was a small seam about one to two inches wide that had free gold up to 9 ounces per ton.
The Bawl Mill
January 2014
• If you don't like the numbers, make up your own!
• By the numbers
• And the award goes to...
• If you don't like the numbers, make up your own!
• By the numbers
• And the award goes to...
Placer Platinum
June 2004
The platinum group metals (PGMs) are divided into three that are “light,” about the same atomic weight as silver, and three that are “heavy,” about the same atomic weight as gold. The three light PGMs are ruthenium, rhodium, and palladium, and the three heavy PGMs are osmium, iridium, and platinum.
The platinum group metals (PGMs) are divided into three that are “light,” about the same atomic weight as silver, and three that are “heavy,” about the same atomic weight as gold. The three light PGMs are ruthenium, rhodium, and palladium, and the three heavy PGMs are osmium, iridium, and platinum.
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The Bawl Mill
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• Looking Back
