All Articles
Platinum in Laccoliths
May 2003 by Edgar B. Heylmun, PhD
Laccoliths are unusual igneous features that seem to occur in the stable interior parts of continents. They are concordant igneous intrusions that have domed the overlying rocks and are circular in plan, and less than 10 miles in diameter. This article deals with some of the laccoliths found in the scenic Colorado Plateau province of Utah, Colorado, and Arizona...Additional articles that might interest you...
Legislative and Regulatory Update
February 2001
• Norton treasures environment but environmentalists worry
• From the National Forest Service
• Suit Filed Against Roadless Initiative
• New EPA rules restrict ombudsman
• Forest Service Sierra Nevada plan is even opposed by Feinstein
• Norton treasures environment but environmentalists worry
• From the National Forest Service
• Suit Filed Against Roadless Initiative
• New EPA rules restrict ombudsman
• Forest Service Sierra Nevada plan is even opposed by Feinstein
Mining Reform and Congress
February 2010
After years of negotiations between environmentalists and industry groups, observers say efforts to reform the 1872 Mining Law may finally pick up steam in Congress.
After years of negotiations between environmentalists and industry groups, observers say efforts to reform the 1872 Mining Law may finally pick up steam in Congress.
Drywashing for Eluvial Gold in the Desert—Using a Portable Drywasher and Hand Tools
February 2005
Often the gold being recovered by drywashing is too fine to be recovered by metal detecting. For every “detectable” nugget found, there could be hundreds of smaller flakes of non-detectable size. Thus, for those that “read the ground,” and snipe for areas of favorable placer concentration, drywashing will continue to be both an inexpensive...
Often the gold being recovered by drywashing is too fine to be recovered by metal detecting. For every “detectable” nugget found, there could be hundreds of smaller flakes of non-detectable size. Thus, for those that “read the ground,” and snipe for areas of favorable placer concentration, drywashing will continue to be both an inexpensive...
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.
Ask The Experts - Why are some valid mining claims missing from apps when researching land status?
September 2019
Ghost Towns of Washington County, Utah
October 2002
As people race by on Interstate 15 through the southwestern portion of Utah, they miss many relics of early silver mining and agricultural days hidden just off the freeway. Washington County had a rich mining and farming history dating back to Civil War times, and there are some that believe it still holds some hope for future mining.
As people race by on Interstate 15 through the southwestern portion of Utah, they miss many relics of early silver mining and agricultural days hidden just off the freeway. Washington County had a rich mining and farming history dating back to Civil War times, and there are some that believe it still holds some hope for future mining.
The Bawl Mill
January 2001
• A skeleton in the closet
• Taxpayers are buying beds
• America's pastime
• A skeleton in the closet
• Taxpayers are buying beds
• America's pastime
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The Ball Mill
• Our Readers Say
• WMD Raffle Raises Funds for Lawsuit
• Gold in Alabama
• From the Editor
• Yukon Placer Miners Fighting Extreme Discharge Limits
• Picks & Pans: Red Beryl Mining—Beaver County, Utah
• The Investigation
• A Gold Detector Sitting in a Closet Only Finds Dust—A Potpourri of Detector Tips
• Central Coast Ranges
• Poll: Montana in Favor of Repealing Anti-Mining Initiative
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
• Melman on Gold & Silver
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Legislative and Regulatory Update
• BLM Runs Check on Assay Services
