All Articles
Gold in Rotten Rock
February 2004 by Edgar B. Heylmun, PhD
Rotten rock (saprolite) can be found in all warm, humid regions, but is best developed in humid, subtropical climates, like that found in the American South. Outwardly, it looks like bedrock, but upon closer inspection, it can be seen that roots penetrate it and that it can be worked with a shovel or hydraulic monitor.Additional articles that might interest you...
Mining for Gold and Sapphires in Montana
April 2014
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.
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.
Locating a New Nugget Patch
September 2007
Finding a new spot that is rich in gold, but has not already been exploited by other metal detector operators, is a goal of many prospectors. Sometimes it takes a lot of looking and research to find such a place because a lot of prospectors are out there...
Finding a new spot that is rich in gold, but has not already been exploited by other metal detector operators, is a goal of many prospectors. Sometimes it takes a lot of looking and research to find such a place because a lot of prospectors are out there...
Montana Tunnels Gets Final OK
December 2008
Operators of the Montana Tunnels mine about 25 miles south of Helena have final approval to expand it.
Operators of the Montana Tunnels mine about 25 miles south of Helena have final approval to expand it.
Guest Editorial—Globalizing Mining in America, Part I
August 2000
Is it environmental concern that's driving mining out of the United States or rather politics on the grandest scale?
Is it environmental concern that's driving mining out of the United States or rather politics on the grandest scale?
Fortymile, Alaska Prospecting Adventure
August 2013
Some creeks have nuggets, while others, particulary the rivers, nothing but fine gold.
Some creeks have nuggets, while others, particulary the rivers, nothing but fine gold.
Ask The Experts—Is it possible for a mountain range to have good lode gold deposits and yet the area streams not carrying like deposits of gold?
May 2011
Q: Is it possible for a mountain range to have good lode gold deposits and yet the area streams not carrying like deposits of gold? Or do the two go hand-in-hand?
Q: Is it possible for a mountain range to have good lode gold deposits and yet the area streams not carrying like deposits of gold? Or do the two go hand-in-hand?
2006 National Mining Hall of Fame Inductees
August 2006
The four inductees are Earl H. Beistline (1916-Present), R. A. F. Penrose (1863-931), Robert M. Reininger (1912-2006), and John Stanton (1830-1906).
The four inductees are Earl H. Beistline (1916-Present), R. A. F. Penrose (1863-931), Robert M. Reininger (1912-2006), and John Stanton (1830-1906).
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