All Articles
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.Ask the Experts
Q: Would a mining company be interested in this area for just the magnetite?
Your Guide to Prospecting in Alaska
Alaska is getting a lot of interest these days, not least because of all the gold prospecting shows on television. Hardly a month seems to pass without some new prospecting show being announced, and a couple of the most popular feature Alaska.
The Amazing Mineral Tourmaline
It is a gemstone, and yet it is also closely associated with many types of metal ores. It's valuable itself but often points toward other valuable minerals—that is certainly something prospectors want to know more about!
Hands-on at Iowa Hill
A number of crevices were still waiting to be cleaned out. A lot of the gold remaining in the pit was very fine sized, but a few small nuggets were also recovered.
Gem Discoveries Sought in North Carolina Field
The gem miner who uncovered North America’s largest emerald thinks he’s found a mother-lode of emerald-rich rock in Alexander County.
Ask the Experts
Bismuth oxide for assaying?
Alternative Financing Alternatives
How can a miner or prospector take advantage of these speedy financing options while avoiding the risks associated with borrowing from so-called “shadow banks?”
Subscription Required:
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
Free:
Legislative Update
