All Articles
The Tangential Impulse Water Wheel in California Gold Mining History—Part I
February 2004 by Guest Writer
The modern tangential impulse water wheel, a device best suited for hydroelectric power production where high water head is available, is an ingenious device born in the historic gold mining industry of California in the 19th Century.Additional articles that might interest you...
Pebble Deposit Reveals Mineral Potential
January 2009
The vast potential of the Pebble deposit is becoming more clear each day.
The vast potential of the Pebble deposit is becoming more clear each day.
State Rivers Closed to Prospecting in Washington
September 2003
The Washington Department of Natural Resources appeared at a recent dredge rally near Oroville to announce the closure of all state-owned aquatic lands to prospecting.
The Washington Department of Natural Resources appeared at a recent dredge rally near Oroville to announce the closure of all state-owned aquatic lands to prospecting.
Letter from the Editor to our Readers and Advertisers
January 2000
Well, as they say, "there's a time for everything and everything has it's time"—or something like that!
Well, as they say, "there's a time for everything and everything has it's time"—or something like that!
Mine Reopening Could Revive Region
September 2000
Cominco American Inc., the U.S. subsidiary of Vancouver, British Columbia-based Cominco Ltd., is seeking regulatory approval to reopen the mine in early 2002.
Cominco American Inc., the U.S. subsidiary of Vancouver, British Columbia-based Cominco Ltd., is seeking regulatory approval to reopen the mine in early 2002.
"No Gold Sales" Says Nevada Senator
August 1999
Senator Richard Bryan (D-NV) is assuring gold producers in Nevada and around the world that Congress will block the Clinton administration's attempt to sell off international gold reserves to help some debt-laden poor countries.
Senator Richard Bryan (D-NV) is assuring gold producers in Nevada and around the world that Congress will block the Clinton administration's attempt to sell off international gold reserves to help some debt-laden poor countries.
Sampling Mineral Deposits
March 2007
The accurate sampling of mineral deposits for testing and analysis is perhaps the most important step involved in both mineral exploration and development. It is a critical factor in initial prospecting efforts and the preliminary investigation of grassroots exploration projects, yet sampling is often performed in a haphazard and incomplete fashion during the early stages of prospecting and exploration activities.
The accurate sampling of mineral deposits for testing and analysis is perhaps the most important step involved in both mineral exploration and development. It is a critical factor in initial prospecting efforts and the preliminary investigation of grassroots exploration projects, yet sampling is often performed in a haphazard and incomplete fashion during the early stages of prospecting and exploration activities.
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