All Articles
Tucson Mountain Chaos
January 2005 by Edgar B. Heylmun, PhD
The Tucson Mountains are immediately west of Tucson, in southern Arizona, and include residential areas of the city. The highest peak, Wasson (Amole) Peak, reaches 4,687 feet. It is part of the great Basin-Range physiographic province, characterized by fault-block mountain ranges separated by broad desert valleys.Metal-Mineral Identification Utilizing a Detector
Seldom is a metal detector used for ore sampling today. Nevertheless, this procedure still works as all BFO and VLF detectors have a non-conductive mineral zone and a conductive metal zone with a neutral null zone between them.
Aussie Gold—A Look at New South Wales
New South Wales is similar to Queensland. The Great Dividing Range runs close to the coast with large forests on the coastal plain. Inland from the mountains are vast grasslands with occasional forests extending to arid plains and desert.
Ask The Experts—Jet nozzle or suction nozzle? Which is best for my highbanker?
I have a highbanker, and I am considering adding a suction piece to make it a combo.
The Bawl Mill
• Cash for Carts
• No photos please...
• We couldn’t have said it better ourselves
• Mother Nature to the rescue...
Why Do We Do The Things We Do?
For years I had studied the tempting bench high above the East Fork of the San Gabriel River. A beautiful 20-foot vertical wall of encrusted boulders, cobbles and gravels beckoned to me 100 to 150 yards up a steep slope from the river bed. They were all very promising material. The kind of rounded curves that can charm so well, and tease a grown man into risking life and limb. So, on that nearly fatal day in May, I packed a spiral wheel...
Legislative and Regulatory Update
• Endangered Species Act reform
• Extremist groups blamed for catastrophic wildfires
• EPA revisists TMDL
• National Heritage Act seeks to take control of lands away from local government
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The Bawl Mill
• Convention Report
• Interview with Congressman Gibbons on Mining Law Reform
• The Art of Finding Coarse Gold Part II—Pocket Hunting for Residual Placers
• Gold Canyon Resources Targets Gallium
• Picks & Pans: Auburn Ravine Gold
• Suit Filed to Stop Mining in Northern California
• Niobium and Tantalum
• The Iola Mine Group, Montgomery County, North Carolina
• Effectively Using a Detector and Drywasher for Placer Gold
• Mining Companies Use Conservative Valuations
• Company Notes
• Accident at Robinson Mine Leaves Two Dead
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
