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.
...while the conference and some economic data were working to restore optimism, the world continued to receive a flood of negative economic news, some of it with ominous implications...
One of the issues that prospectors run into when working to upscale from micro-scale hard rock testing to a greater production output, is that they often confuse individual devices or machines with systems.
What today appears to be a “road to nowhere” was once a road to somewhere. At today’s precious metal prices that somewhere can be of great importance to you.
• Vista Gold Corp.
• Wolfden Resources Inc.
• NovaGold Resources
• Globex Mining Enterprises
• Canyon Resource Corp.
This is a story of a bit of our earth, carved by lines of longitude and latitude. There is a deep mystery in this land. The naked mountains speak of long ages of thrusting and rifting—of uplift and erosion. These riddles in the rock defy explanation.
If approved, the project would use block caving to extract the remaining ore, most of which is 7,000 feet below ground level.
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