All Articles
The Basics of Small-Scale Heap Leaching with Cyanide
August 2007 by Chris Ralph
In 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.
Additional articles that might interest you...
Time to Come Home
December 2018
The need to bring mining back to North America is more urgent than ever.
Prospecting With a Magnetometer
December 1999
Swedes were the first to note variations in the Earth's magnetic field, circa 1640, and they were the first to use the dip needle. They made the first magnetometer in 1870.
Swedes were the first to note variations in the Earth's magnetic field, circa 1640, and they were the first to use the dip needle. They made the first magnetometer in 1870.
Shortage of Mining Engineers Projected
February 2005
As decade-high gold and silver prices spark a renewed interest in mining in the West, there are few mining education programs and fewer students earning mining engineering degrees due to two decades of decline in the US mining industry.
As decade-high gold and silver prices spark a renewed interest in mining in the West, there are few mining education programs and fewer students earning mining engineering degrees due to two decades of decline in the US mining industry.
Mine Woes Could Mean Higher Taxes
March 1999
Hard times for the copper industry could cost property owners in Grant County.
Hard times for the copper industry could cost property owners in Grant County.
Tonopah Historic Mining Park
April 2001
For just a few bucks admission you’re on your way. Shawn will give you a map of the 130-acre park, and you are free to explore on your own. There are just a few areas that are fenced-off for safety concerns, but most of it is wide open. It is a refreshing change to view a mining museum/park such as this.
For just a few bucks admission you’re on your way. Shawn will give you a map of the 130-acre park, and you are free to explore on your own. There are just a few areas that are fenced-off for safety concerns, but most of it is wide open. It is a refreshing change to view a mining museum/park such as this.
Journeys in the Kingman Quadrangle—Part IV
November 2007
The lands that lie within the Arizona section of the Kingman Quadrangle are by far the most populated. Kingman and Bullhead City are the largest towns in the area, having a combined population of about 58,000 people.
The lands that lie within the Arizona section of the Kingman Quadrangle are by far the most populated. Kingman and Bullhead City are the largest towns in the area, having a combined population of about 58,000 people.
Subscription Required:
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
