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Historic Mining at Mount Diablo, CA
September 1999 by Richard H. Peterson, PhD
Located 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.Gold Prospecting and Mining Summit
We have tentatively scheduled a date for next year’s show and we want you to know it’s not going to be on Easter weekend!
It's Hard to Find Gold!
...even the best prospectors have times when they do not find gold. It is all about taking chances against tough odds and succeeding.
Drive Under Way to Restore the Rights of Suction Dredgers
California Governor Schwarzenegger signed SB 670 on August 6, 2009, which temporarily halts suction dredging in California until a new Environmental Impact Report (EIR) is completed. This was despite a request from...
Picks & Pans: Tips for Nuggestshooting—How to Increase Your Gold Finds (Part II)
Thus far we have only briefly discussed the methods used by early miners to process auriferous desert gravels. However, old workings can be extremely productive places to search with a metal detector.
Legislative and Regulatory Update
• Comments needed for Washington's Buckhorn Mountain
• Rep. Gibbons goes to bat for Nevada
• More land acquisition on the way?
• IBLA rules in favor of miner
• Comment on critical habitat proposed in the Mojave Desert
Green Valley Gold District, Payson, Arizona
Most gold-bearing quartz veins found in the district were fracture fillings in faults enclosed by crushed quartz zones along their margins. Since the host rocks were often extensively weathered, portions of the veins stood out as positive, resistant outcrops. The gold-bearing veins ranged from a few inches wide to the vein at the Gowan mine that was as much as 12 feet wide.
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The Bawl Mill
• Over the Divide
• Our Readers Say
• Feds Eye Restrictions on AZ Archaeological Sites
• IMF Reconsidering Gold Sales to Finance Debt
• Governors Focus on Aid for Laid-off Miners
• Nevada Counties, Towns Get Forest Service Grants
• Labor Dept. Approves Aid to Laid-off Nevada Miners
• Company Notes
• ISEE Celebrates 25 Years
• Picks & Pans: Basic Dry Washing Operations in Gold Placer Mining
• Washington Miner Wins Poetry Contest
• Gold Coin Sales Boosted by Low Prices
• The Klamath Mountains
• Silver Posts Best Price in 11 Years—Strong Investment Interest and Steady Demand Cited
• Platinum—Group Metals
• Gold in the Drum Mountains
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
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Legislative Update
