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Impact of Habitat Designations Grossly Underestimated

A UC Berkeley professor says the federal government is using an analysis method that seriously underestimates the economic impact of critical habitat designations for imperiled species.

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Fire Agate in Arizona


Agate, a banded form of chalcedony (cryptocrystalline quartz), has been used as a gemstone for over 7,000 years. Romans cut and polished agate, and this practice was taken to new heights in Germany in the 16th century.

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Ore processing in California?

Gold Prospecting & Mining Summit Exceeds Expectations


Brian...had cleared off some virgin, gold-bearing bedrock areas prior to our arrival, so everyone had ample opportunity to find and take home some gold.

A Rich Gold Strike at Scossa


The old mining camp of Scossa, in Pershing County, Nevada, was located 6 miles from the nearby ghost camp of Rosebud and approximately 20 miles northeast of the once famous mining town of Seven Troughs. Fifty- two-year-old Charlie Scossa was already a seasoned prospector from California when he went in search of another rich strike in the high deserts of northwestern Nevada in 1930.

North Idaho Mine to Open Again in 2008


The Sunshine Mine in northern Idaho could start running again in 2008.

Gold Deposition and Gradients of Placer Streams—Part I


When placer miners from the gold rush era began experimenting with the slope of their sluices, they must have pondered the ideal slope for trapping gold in a creek bed too. Logic suggests the same is true for streams...

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• Is there a standard contract for placer mining to use with a private property owner?

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