You are seeing reference results for hydraulic mine because there's not a match on Dictionary.com.
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www.reference.com/motif/Business/used+gold+dredges
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The early miners used primitive equipment, gold pans and sluice boxes with the gold-bearing gravel being shoveled by hand. Hydraulic methods using high-pressure water we ...
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www.gardenandhearth.com/Malakoff_Diggins
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Malakoff Diggins State Historic Park is the site of California's largest "hydraulic" mine.
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www.bizplenty.com/Mercury_Clean_up
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A BLM-sponsored community meeting to discuss mercury clean-up from an old hydraulic mine in the Red Dog area of Nevada County will be held Wednesday, August 11, 2004, from 7:00 pm ...
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www.bizplenty.com/Hydraulic_Mining_History
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Bowie. Hydraulic Mining in California.; ... deposits diamond gemological properties gemstones gold history mine mining production usa...
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Hydraulic mining - Wikipedia, the free encyclopedia
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en.wikipedia.org/wiki/Hydraulic_mining
Hydraulic mining, or hydraulicking, is a form of mining that uses high-pressure jets of water to dislodge rock material or move sediment. In the placer mining of ...
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library.thinkquest.org/05aug/00461/hydraulic.htm
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Hydraulic mining is another kind of surface mining. This was used in the 1800s to find gold after placer mining had already been used. After the gold was gone, ...
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museumca.org/goldrush/fever19-hy.html
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Giant Gold Machines - Hydraulic Mining. An ancient northern California river once laid down an immense bed of gold-bearing gravel. There had to be an easy ...
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cprr.org/Museum/Hydraulic_Mining/
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Hydraulic Mining for Gold in California's Sierra Nevada Mountains. Central Pacific Railroad Stereographs.
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www.learncalifornia.org/doc.asp?id=526
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Hydraulic mining came of age in 1853, when miner Edward Matteson introduced the novel concept of a nozzle, which allowed hoses to shoot water with ...
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www.calgoldrush.com/graphics/evolution.html
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10 Hydraulic mining. This method was developed to explore the soil of older, dried riverbeds and later, any available soil. 1. Riveted pipes guided water down ...
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