Small Mining Operations
The Seven Troughs Mining District
September 2016 by Chris Ralph
The favorable geology of the northeastern and central parts of the Seven Troughs Range are the parts most interesting to prospectors. They are underlain by a thick sequence of Tertiary volcanic rocks, mostly rhyolites and andesites.
Lode or Placer: What Difference Does It Make?
This explains the large difference in particle sizes between placers and hydrothermal lode deposits, but also means that while the mining may be similar in some cases, the sampling and recovery techniques are usually quite different.
The Dredge Report
As a plaintiff in one of the lawsuits, I’m not allowed to talk about specifics in the court-ordered negotiations currently underway in San Bernardino. However, I do want to let you know we are making progress…
Mining for Gold and Sapphires in Montana
Fascinated by the sapphires—and the gold that occured with them—he was soon buying parcels of property and setting up his own commercial-scale gravel processing plants.
Our Readers Say
Ask The Experts
How do I set up a Miller table?
A Model Mining Operation
After he excavates the ore down to bedrock, he goes over the bedrock with a metal detector to ensure he didn't leave any gold behind before he backfills the area.
Resurrecting An Old Hard Rock Mine—A Series of Small Victories
…we cheered and high-fived each other as the ore cart slowly crested the top of the headframe, then picked up a bit of speed on the short downhill section and came to an abrupt halt, ejecting its contents of ore…
Subscription Required:
The Bawl Mill
• Our Readers Say
• Ask The Experts: Is there a safe DIY alternative to cyanide or mercury for extraction?
• Ask The Experts: Should I take my claim access problems to the Desert Advisory Council?
• Ask The Experts: How do I identify gold in hard rock that may be mixed with other metals?
• Ask The Experts
• Ask The Experts
• Legislative and Regulatory Update
• Pickers and Nuggets
• Modern-Day Claim Jumping
• Oregon's Waldo and Galice Mining Districts Unite
• Attention to Detail - Part II
• CA Supreme Court Rules Against Rinehart - But There Is A Solution
• Summertime Gold Panning
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
Free:
MMAC & PLP Update
