Ask the Experts
January 2013
How do sluicing and drywashing compare in effciency?
How do sluicing and drywashing compare in effciency?
Legislative and Regulatory Update
January 2013
• US Supreme Court may consider requirements for Notitce of Intent
• Oregon considering mining restrictions
• Latest developments in California suction dredging moratorium
• Spotted owl habitat
• US Supreme Court may consider requirements for Notitce of Intent
• Oregon considering mining restrictions
• Latest developments in California suction dredging moratorium
• Spotted owl habitat
Iron Minerals, Your Detector and Gold
January 2013
It’s worthwhile for the prospector using a metal detector to know a little bit more about the association of iron and gold as well as how iron minerals affect your metal detector.
It’s worthwhile for the prospector using a metal detector to know a little bit more about the association of iron and gold as well as how iron minerals affect your metal detector.
The Robinson Mine—Big Things Happen Here
January 2013
When I’m traveling through the West, I sometimes take detours that lead me to places that I never knew exist
When I’m traveling through the West, I sometimes take detours that lead me to places that I never knew exist
Customizing Your Dredge
January 2013
I am going to suggest dozens of ways you can increase suction power, dredge to greater depths, and improve recovery methods in your sluice box.
I am going to suggest dozens of ways you can increase suction power, dredge to greater depths, and improve recovery methods in your sluice box.
Small Miner Beats Forest Service in Court
January 2013
Thomas Tierney has been a long-time subscriber to ICMJ’s Prospecting and Mining Journal and has read about the many battles between miners and overzealous regulators. Then he faced his own battle.
Thomas Tierney has been a long-time subscriber to ICMJ’s Prospecting and Mining Journal and has read about the many battles between miners and overzealous regulators. Then he faced his own battle.
Using Vegetation and Soil Conditions as Prospecting Aids
January 2013
Wouldn’t it be great if you could know if there is gold in the ground without setting foot on the ground? Well you can, to a certain extent, if you can recognize mined ground from unmined.
Wouldn’t it be great if you could know if there is gold in the ground without setting foot on the ground? Well you can, to a certain extent, if you can recognize mined ground from unmined.
Prospecting for Diamonds
January 2013
Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
Green Valley Reconnaissance
January 2013
During this trip we found enough gold to make us want to come back, even with the punishment of a very long, tough hike.
During this trip we found enough gold to make us want to come back, even with the punishment of a very long, tough hike.
Gold Pour Signals Revival in the Mother Lode
January 2013
Miners are digging again where their forebears once unearthed riches from eight historic mines that honeycomb Sutter Gold Mining Company’s holdings about 50 miles southeast of Sacramento.
Miners are digging again where their forebears once unearthed riches from eight historic mines that honeycomb Sutter Gold Mining Company’s holdings about 50 miles southeast of Sacramento.
The Bawl Mill
November 2000
• Gore honored with award ...
• Gore honored with award ...
Our Readers Say
November 2000
In response to "Fake Assays and Assayers", ICMJ September 2000...
In response to "Fake Assays and Assayers", ICMJ September 2000...
Legislative and Regulatory Update
November 2000
• More National Monument news
• Land-use advocates file another suit over National Monuments
• NWMA's Linda Skaer addresses EPA in northern Idaho
• More National Monument news
• Land-use advocates file another suit over National Monuments
• NWMA's Linda Skaer addresses EPA in northern Idaho
Enrichment of Gold Veins
November 2000
Most of the world's great gold mines are in secondary (supergene) enrichments in veins and stockwork, brought about by physical and chemical processes.
Most of the world's great gold mines are in secondary (supergene) enrichments in veins and stockwork, brought about by physical and chemical processes.
The Assay of High Iron Gold Ores
November 2000
By employing this technique, one can use a larger sample size without having to resort to large crucibles and massive amounts of flux.
By employing this technique, one can use a larger sample size without having to resort to large crucibles and massive amounts of flux.
History of Mining—Bradshaw Mountains, AZ (Part I)
November 2000
The Bradshaw Mountains, southeast of the old territorial capital city of Prescott, contain traces of many old mines and the railroads that were built to serve them.
The Bradshaw Mountains, southeast of the old territorial capital city of Prescott, contain traces of many old mines and the railroads that were built to serve them.
Picks & Pans—The Green Rock, Rattlesnakes, Good Gold and Ruth's Mine
November 2000
After a long winter, gold flakes swirling around in black sand at the bottom of my pan was a welcome sight.
After a long winter, gold flakes swirling around in black sand at the bottom of my pan was a welcome sight.
Silver Hill, North Carolina
November 2000
To the writer's knowledge, this was the first discovery of silver and lead in North Carolina and perhaps one of the first official discoveries of silver east of the Mississippi River.
To the writer's knowledge, this was the first discovery of silver and lead in North Carolina and perhaps one of the first official discoveries of silver east of the Mississippi River.
Residual, Lateritic and Gossan "Soils" as Potential Nuggetshooting Sites
November 2000
Nearly everyone who has drywashed or metal detected for placer gold within hardrock gold-mining areas is aware of "residual placers" (a.k.a. seam diggin's)...
Nearly everyone who has drywashed or metal detected for placer gold within hardrock gold-mining areas is aware of "residual placers" (a.k.a. seam diggin's)...
Hardrock in Downieville
November 2000
A recent weekend trip found us leaving the Grass Valley, California area to meet up with some friends in Downieville.
A recent weekend trip found us leaving the Grass Valley, California area to meet up with some friends in Downieville.
