Large Scale Mining
Resolution Copper Project To Be Reviewed By Year-End
January 2021 by Associated Press
If approved, the project would use block caving to extract the remaining ore, most of which is 7,000 feet below ground level.
Modern Mining Reclamation
A study showed that between 1930 and 1980, only a quarter of one percent of the land in the United States was used in all mining applications combined, including surface mining, tailings disposal, underground mines, and all mineral processing facilities.
Utah Tellurium Mine Creates New US Supply of Key Mineral
“The ability to have 20 tons produced here in America helps our country mitigate those supply concerns.”
EPA Recommends Against Reissuing Permit for PolyMet Mine
PolyMet contends the project will actually reduce mercury and sulfate discharges into the St. Louis River watershed because it will clean up an old iron mining waste pond at the processing plant site.
Designing and Evaluating Placer Gold Recovery Plants
For this article, I am focusing on industrial production plants that can handle 10 cubic yards per hour or more and would be fed by a loader or other heavy equipment...
Canadian Company Recovers 1,111-Carat Diamond
It is the second largest gem-quality diamond in history, after the 3,106-carat “Cullinan Diamond” was recovered in South Africa in 1905.
Have We Hit 'Peak Gold'?
According to some experts, after the peak is reached, the production rate will slowly decline until it reaches near zero while the price shoots upward. At that point, we will have pretty much mined all the economic ore deposits that are present on the planet.
Feds Deny Lease Renewals for Minnesota Mine
Two longstanding mineral rights leases that are critical for a proposed large underground copper-nickel mine upstream from the Boundary Waters Canoe Area Wilderness in northeastern Minnesota will not be renewed, two federal agencies announced…
The Bawl Mill • Happy New Year 2021! • Ask The Experts - Does steep stream bedrock act like riffles? • Ask The Experts - Where do I register a mining claim in Nevada? • Ask The Experts - Are eskers good locations for gold? • Ask The Experts - Any tips for hunting down gold veins? • Our Readers Say • Dealing With Hot Rocks and Mineralization • Principles of Designing Your Mill Production System, Part I: Starting Up • Pay Attention to the Features and Landmarks • Gold Prospecting for Better or Worse: All Work and No Pay • Specialized Equipment Available for Hire • Which Coil Should I Use? • Northern Dynasty To Appeal Alaska Permit Rejection • Our Old Friend, Mr. Crashbox • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices