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• Azco Mining Inc.
• Hecla Mining Co.
• Canyon Resources Corp.
• Royal Oak Mines
• BHP World Minerals
• Pacific North West Capital

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The Tangential Impulse Water Wheel in California Gold Mining History—Part II


Even before Pelton relocated in San Francisco in 1888, many other competitive foundries and machine shops chose to enter the water wheel market. These firms were already busy with the mining trade, producing hoists, stamp mills, ore carts, Cornish pumps, crushers, grinders, compressors and drills.

The Golden Highway—El Dorado County


Continuing northward and crossing the Consumnes River along California’s famed Highway 49, the “Golden Highway” leads through the heart of the Mother Lode countryto El Dorado County. This is where the Gold Rush began...

Ask The Experts—Extraction of micro gold from black sands


I know big mining companies use cyanide and other leach systems to recover gold from ore. Is this the only economically feasible way to recover the values?

An Update On The Father's Day Gold Discovery


Just recently, the miners hit another big pocket, this time with nearly 1,000 ounces of gold. Some of the rich specimens were as big as a fist and others were in the form of smaller pieces.

Federal Court to Address Dredge Permits—The Tulloch Rule


Congress passed Section 404 of the Clean Water Act (CWA), which was originally called the Federal Water Pollution Control Act, 33 USC 1344, in 1972. Section 404 authorized the US Army Corps of Engineers (the Corps) to issue permits “for the discharge of dredged or fill material into the navigable waters at specified disposal sites.”

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California Suction Dredging Update


There are two separate issues threatening suction dredging in California.

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