Historic Mining at Mount Diablo, CA
September 1999 by Richard H. Peterson, PhDLocated in Contra Costa County in the East Bay region of the San Francisco Bay Area, Mount Diablo was the site of the largest coal mining operation in the state in the last half of the nineteenth century. The northern foothills of the mountain produced nearly four million tons of coal.
Once across, I panned a couple of spots around some old grass roots and the fine gold was amazingly heavy. Every pan I ran after that had lots of color.
• "Now for the reality..."
• "How times have chagned..."
• "Now I know why it was late..."
• "...the news media has been kept in the dark."
• "...expand it if you can."
Having spent 33 years prospecting off and on in this area, this writer has become very familiar with the region, its mines, the gold (hardrock and placer), wildlife, weather, topography, and history—it has been a friend to me.
• Helium, going up, up and away...
• By the numbers...
• Unsustainable regulations...
My wife Ann and I moved three years ago to the Pueblo of Arivechi, Sonora, in order to be near the mining concessions we owned and to build a precious metals concentrating mill.
• This is a friendly reminder
• Homebuilders’ case may help miners
• “Ecological resources must be protected…”
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