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Clean Fuel, Cleaner Air

A-55 Clean fuels, which are emulsions of oil and water, are said to produce much lower oxides of nitrogen and particulate matter emissions.

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Prospector Finds Cache of Emeralds in North Carolina


"This is just the tip of the iceberg," Hill said. "It's going to take 200 years to dig it all out."

Legislative and Regulatory Update


• Another setback for Twin Metals
• US Supreme Court to review case that challenges WOTUS

Gold in Moffat County, Colorado


The area of interest in this article is in eastern Moffat County, located in northwestern Colorado adjacent to the Wyoming line. It is a high, sagebrush prairie which ranges from 6,200 to 7,200 feet in elevation, north and northwest of the county seat of Craig (pop. 8,000).

The Bawl Mill


• Less pork but more fat...
• It all flows downstream...
• Promises, promises...

Gold Deposits in Skarn


Skarn consists of coarse-grained calcium, magnesium, iron, and aluminum silicates formed by hydrothermal solutions, which replace limestone or dolomite near the contact with an igneous intrusion. The contact metamorphism is usually caused by an intrusion such as quartz monzonite, granodiorite, or similar rock type, which may or may not be mineralized.

The Treasure Detective—Part III


In the 1800s, rich silver and gold mines along the eastern Sierras were supplied from Los Angeles by a wagon road with an important stage stop at Freeman Junction. Wagons carrying the gold and silver back from the mines to Los Angeles followed the same wagon road. A cottage industry of robbery arose where numerous individuals made a living holding up these wagons and making off into the hills with the loot.

Company Notes


• Canyon Resources
• Vista Gold Corp.
• Placer Dome Inc.
• Royal Gold, Inc.

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