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History of Mining—Bradshaw Mountains, AZ (Part I)

The Bradshaw Mountains, southeast of the old territorial capital city of Prescott, contain traces of many old mines and the railroads that were built to serve them.

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The Notch Peak Intrusive


Located about thirty miles west of Delta, Utah, just to the north of Highway 6-50, is a tall rocky crag with an apparent notch missing from the peak. This is Notch Peak.

Alaska Geologist Survives Grizzly Attack


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Police Extend Detention of Newmont Executives


Five executives from the American mining giant Newmont will continue to be jailed while facing pollution charges in Indonesia, police said, despite test results that show “normal” mercury levels near a former gold mine.

The Mexican Gold Belt


Mexico is a large country, much larger than the state of Alaska. It is almost as long as the US is wide. It has climates that range from tropical rainforests in the south to barren deserts in the north. The Sierra Madre is a forested plateau that reaches elevations in excess of 10,000 feet. It parallels the west coast of the country.

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Ask The Experts: How would you go about evaluating a silver deposit?


Any ore grading 32% silver would contain more than 9,000 ounces of silver per ton and be valued at something in the range of $150,000 per ton. Even a few tons of this type of material would be well worth shipping off to a smelter for treatment.

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