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The Stonewall Jackson Mine, San Diego County, California
July 2001 by Richard H. Peterson, PhD
For obvious reasons southern California is not known historically for its gold mines. Gold production was concentrated heavily in the Sierra Nevada foothills in the northern part of the state. However, the high mountainous region of eastern San Diego County was the site of a number of productive hardrock gold mines, notably in the late 19th century.Miner Wins Important Victory Against Forest Service
A case involving a Northern California dredger who was cited by the Forest Service for operating without a Notice of Intent, Plan of Operation or special-use authorization was resolved in the miner’s favor.
Legislative and Regulatory Update
• Administration won't appeal latest ruling on Roadless Rule
• Improved forest management plan by year's end
• IBLA rules in favor of Cortez Gold Mine and BLM
Gold Miners Become Tungsten Miners
The story begins in the early 1940s in Vance County, North Carolina, on a farm that belonged to the Hamme family. During spring plowing in 1942, one of the brothers accidentally plowed up an odd looking rock and took it home to show his younger brother who was studying geology at Duke University.
How PGMs Affect Assay Beads
Most fire assayers are trained to observe the cupelled beads very carefully, noting any discoloring or surface roughness that might indicate that one or more of the platinum group metals (PGMs) are present. The “clues and tests” I have included in this article stem from several sources, including my 35 years of experience performing torch assays...
Ask the Experts
What to do with black sands
Gold in Guyana—Part I: Porknocking on the Puruni River Road
In part one of this two-part series on gold in Guyana, I describe artisanal mining efforts currently winning alluvial gold from small-scale placer operations located along the lower Puruni River and its tributaries.
Mining Stock Quotes and Mineral & Metal Prices
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