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The Basics of Small-Scale Heap Leaching with Cyanide Part I—History, Suitablility and Permitting
July 2007 by Chris Ralph
Hardrock mining is usually done on a large scale, and although a few small-scale hardrock operations still exist, it’s not an easy operation to start up and run profitably.
Additional articles that might interest you...
The Willow Creek-Hatcher Pass Alaskan Goldfields
May 2006
Having spent 33 years prospecting off and on in this area, this writer has become very familiar with the region, its mines, the gold (hardrock and placer), wildlife, weather, topography, and history—it has been a friend to me.
Having spent 33 years prospecting off and on in this area, this writer has become very familiar with the region, its mines, the gold (hardrock and placer), wildlife, weather, topography, and history—it has been a friend to me.
The Rampart Goldfields, Alaska
November 2005
The town of Rampart, on the Yukon River, was established as a supply point after gold had been found on nearby Minook Creek in 1896. Rampart has been known by various names including Rampart City, Manook City, or Minook.
The town of Rampart, on the Yukon River, was established as a supply point after gold had been found on nearby Minook Creek in 1896. Rampart has been known by various names including Rampart City, Manook City, or Minook.
The Pearce Mineralized Area, Dragoon Mountains, Arizona—Part II
August 2013
There are many prospects within the known mineralized area and along the margins of the mineralized area that should be examined for gold and silver.
There are many prospects within the known mineralized area and along the margins of the mineralized area that should be examined for gold and silver.
Search for the Legendary Sierra Azul
June 2001
One of the most unique mining stories to derive from the days of the Spanish conquest of the Southwest is the legendary story of the Sierra Azul, or “Blue Mountain” of Arizona. The first reports of what some historians maintain is nothing more than mere myth, came in the middle of the seventeenth century, and it survived as a frontier tradition into the nineteenth century.
One of the most unique mining stories to derive from the days of the Spanish conquest of the Southwest is the legendary story of the Sierra Azul, or “Blue Mountain” of Arizona. The first reports of what some historians maintain is nothing more than mere myth, came in the middle of the seventeenth century, and it survived as a frontier tradition into the nineteenth century.
Ask the Experts
July 2014
Can I treat a sample with muriatic acid?
Can I treat a sample with muriatic acid?
Trade-Ins, Swaps and Like-Kind Exchanges
February 2017
While most prospectors, mine operators and business owners are aware that “like-kind” exchanges can be an excellent way to postpone the gain resulting when any of the operation’s assets are disposed of, few give any thought to the value...
While most prospectors, mine operators and business owners are aware that “like-kind” exchanges can be an excellent way to postpone the gain resulting when any of the operation’s assets are disposed of, few give any thought to the value...
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