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PLP Interim Rule Raffle

The Forest Service issued an Interim Rule on July 9, 2004, to require a Notice of Intent or Plan for mining activities that cause little or no disturbance to public lands under Forest Service jurisdiction.

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Basic Geology for the Independent Miner—Part V Geology of Hardrock Gold Deposits


In this installment we will finish up our discussion of how primary hardrock gold deposits form. Understanding how rock alteration works can lead to some good ideas for exploring around old mining districts.

Green Valley Gold District, Payson, Arizona


Most gold-bearing quartz veins found in the district were fracture fillings in faults enclosed by crushed quartz zones along their margins. Since the host rocks were often extensively weathered, portions of the veins stood out as positive, resistant outcrops. The gold-bearing veins ranged from a few inches wide to the vein at the Gowan mine that was as much as 12 feet wide. 

Detecting for Possible Mid-Range Eluvial Gold


Actually, this mid-range gold zone can exist in any eluvial placer field with a shallow zone where the ground “tightens up” below the loosely packed surface dirt to harder packed dirt. However, its presence depends upon several factors:

Fluorescent Mineral Prospecting


Ultraviolet light is divided into three levels, labeled A, B and C depending on the wavelength, with C having the shortest wavelength and the most energy.

Silver’s Shine is Back


As a precious metal, silver doesn’t have the allure of gold. As an investment, it’s not as hip as Google. But dowdy old silver is suddenly chic.  Silver prices are at their highest in more than 25 years, and mining companies are riding an economic boom.

Clues for Detecting Ancient River Channels and Flats


The gold in this area can get quite large. Most of the pieces are about half a pennyweight on average.

The Kern River


There are clubs with claims in the area and there’s a section of the river open to the public, but the rest of the area is claimed up so do your research first.

Subscription Required:
The Bawl Mill   • Shortage of Mining Engineers Projected   • Ex-MarketWatch Mining Promoter Settles Charges   • Carbonatites   • Sage-Grouse Listing Denied   • The Art of Finding Coarse Gold—Part III   • Tongass Approves Kensington Mine Plan   • California Miners Locate Rich Pocket of Specimen Gold   • The Lucky Shot Mine   • BC Premier Heralds "Golden Decade" in Forestry and Mining   • Drywashing for Eluvial Gold in the Desert—Using a Portable Drywasher and Hand Tools   • Claim Filings Up in the Northwest   • Canadian Officials Foresee Little Impact From Mine   • Coeur d'Alene Mines Sees Future in Bolivia   • The Golden Highway—Nevada County   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices   • Looking Back

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