Environmentalists Target Pebble Mine

February 2007 by Scott Harn

Shaker Tables for Processing Hard Rock Ores

May 2017

Most placer equipment is really made with gold in the 30 and larger mesh sizes in mind, though if carefully used can often get reasonable recovery down to the 50 mesh size.

Melman on Gold & Silver

July 2006
Several years ago one of the most important persons on the American political scene was Ross Perot, an independent candidate for President. His favorite campaign theme was railing against (NAFTA) and his claim was that...

Legislative and Regulatory Update

March 2001
• Bush puts Roadless Initiative on hold
• SWANCC v. US Army Corps of Engineers
• New Arizona monument added to lawsuit
• Clinton's mining moratorium in Siskiyou may not last
• County illegally used mining claims in land swap
• Montana Governor asks new interior secretary to turn over mineral rights
• Republican Representative from Nevada elevated to vice chairman on mining

Platinum Group Metals

May 1999
Platinum is only one of a group of related metals that are referred to as platinum group metals (PGMs), because platinum in its native state usually contains all six metals of the group along with some iron.

Payette Forest Sides With Mining Company

June 2003
The US Forest Service is siding with a mining company’s bid to reopen roads and drill test holes in the Frank Church-River of No Return Wilderness.

A Guide to Overlooked Gold Deposits—Part II

October 2003
The following are situations that the modern prospector would do well to research. Some specific areas are described, but more importantly they present background into what the author feels are worthwhile and generally overlooked situations...

The Tangential Impulse Water Wheel in California Gold Mining History—Part II

March 2004
Even before Pelton relocated in San Francisco in 1888, many other competitive foundries and machine shops chose to enter the water wheel market. These firms were already busy with the mining trade, producing hoists, stamp mills, ore carts, Cornish pumps, crushers, grinders, compressors and drills.

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The Bawl Mill   • Prospectors Beat Mining Claim Tax   • In Pursuit of Gold and Silver in the Sierra Madres—Establishing a Mining Company in Mexico   • Update On “Special Rock” Kicking   • Michigan DEQ Gives Tentative OK to Nickel, Copper Mine   • Saved Before the Tax Bell Tolled   • The Petersville—Yentna Goldfields   • Demand for Copper Boosts Zambian Mining   • Doc Livingston   • Bum Luck   • San Manuel Mine Officially Closes With a Bang   • Detecting in Australia's Pilbara Region   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices   • Looking Back

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