All Articles
Gold in the Chinle Formation
May 2004 by Edgar B. Heylmun, PhD
The Chinle Formation, of Triassic age, underlies about 100,000 square miles in Arizona, Colorado, Nevada, New Mexico, and Utah. It adds to the scenic grandeur of the great Colorado Plateau province, noted for its high cliffs and deep canyons.
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Our Readers Say
September 2017
New Oregon Mining Legislation Friendly to Small Miner
August 1999
Oregon Independent Miners president, John Holleman, has advised ICMJ that legislation important to the Oregon small miner, sponsored by his organization, has been signed into law.
Oregon Independent Miners president, John Holleman, has advised ICMJ that legislation important to the Oregon small miner, sponsored by his organization, has been signed into law.
Ask The Experts—Inconsistent fire assays
November 2011
Q: ...He consistently comes up with values much higher on the same ore samples.
Q: ...He consistently comes up with values much higher on the same ore samples.
Proof Mining Districts Work!
July 2016
If you need more proof that having an organized Mining District can help you, look no further than the recently proposed Methow Headwaters Withdrawal in north-central Washington State.
If you need more proof that having an organized Mining District can help you, look no further than the recently proposed Methow Headwaters Withdrawal in north-central Washington State.
The Seventymile and American Creek Goldfields
June 2007
Author’s note: If you ever contemplate prospecting on the Seventymile River, beginning at the mouth, make sure your will is up to date, and you’ve said goodbye to loved ones. If the mosquitoes don’t get you on the way up, you’ll surely drown in the river or wear yourself out thrashing through the brush.
Author’s note: If you ever contemplate prospecting on the Seventymile River, beginning at the mouth, make sure your will is up to date, and you’ve said goodbye to loved ones. If the mosquitoes don’t get you on the way up, you’ll surely drown in the river or wear yourself out thrashing through the brush.
The Basics of Froth Flotation
June 2015
I thought it might be worthwhile to take a look at the basics of this important mineral separation technique and how a miner can use it to recover the values out of an ore.
I thought it might be worthwhile to take a look at the basics of this important mineral separation technique and how a miner can use it to recover the values out of an ore.
Feds Move Oil Shale to Front Burner
February 2006
A recent hearing on federal plans to unlock oil shale reserves in the Intermountain West was packed by small-time speculators, some of whom questioned whether today’s technology would let them squeeze oil out of rock profitably.
A recent hearing on federal plans to unlock oil shale reserves in the Intermountain West was packed by small-time speculators, some of whom questioned whether today’s technology would let them squeeze oil out of rock profitably.
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