The Basics of Small-Scale Heap Leaching with Cyanide
August 2007 by Chris RalphIn last month’s article I talked a bit about opportunities for heap leaching small hardrock deposits. This month I’m going to talk about the basics of putting together a heap leach project, including building the pad and leaching the ore.
The main issues in this case involved the DEQ’s authority to regulate discharges under sections 402 and 404 of the Clean Water Act.
Even with the decades of mining and exploration, much of the Comstock is still underdeveloped and its potential not fully tapped.
The Bureau of Land Management (BLM) has increased mining claim location fees and maintenance fees in a final rule published in the Federal Register on June 29, 2009.
H.R. 699, the Hardrock Mining and Reclamation Act of 2009, should be labeled H.R. 666 because it appears to have been written by the Devil himself.
• Barrick Gold Corp.
• Montana Resources
• Placer Dome
• Newmont Mining
• Norilsk Nickel
• AngloGold Ltd.
• Ashanti Goldfields Co. Ltd.
• Randgold Resources
• Ivanhoe Mines Ltd.
“Metal detecting is not a social function.” So said a good friend of mine. And it’s true. But that’s not to say the benefits of having a prospecting partner don’t outweigh those of being alone.
The Bawl Mill • Ask the Experts • Will California Dredging Survive? • Prospecting For Gold—The Osborne/Herman Hardrock Mine • Journeys in the Kingman Quadrangle • From Spanish Mine to Modern-Day Exploration: The Historic Gold-Silver Camp of Palmarejo • Spanish Police Seize Ship in Treasure Fight • Looking Back • Gold Mine Proposed in Jefferson County • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices