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Placer Gold in Idaho

Idaho is situated in the Rocky Mountains except for the southern third, which encompasses the Snake River Plain and desert mountains to the south. Elevations range up to 12,662 feet at Mt. Borah, with annual precipitation varying from 8 inches in the south to over 60 inches in the central mountains.

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Ask the Experts


Q: Can you please tell me about diamond fluorescense?

Prospecting My Way Across Australia Pt I


After contributing to the total, I am proud to claim my share of Ray’s patch. In total, we got almost an ounce of gold from the schist where it seems to have been formed.

Gold in Chihuahua, Mexico


Chihuahua, about the size of Oregon, is Mexico’s largest state and one of its most prosperous, with a great influx of foreign capital. The capital city, Chihuahua (pop. 2 million), is 228 miles, by divided highway, south of El Paso, Texas. Topographically, the state can be divided into several provinces, from dry sandy deserts on the north and east, to the forested Sierra Madre Occidental on the west and southwest.

Platinum in Laccoliths


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...

MMAC Update


This is the third trip MMAC has made to DC this year, so some of the congressional staff members are gaining a better understanding of the current problems miners face and how MMAC-assisted Mining Districts can alleviate those problems.

Guest Editorial—California "Special" Dredge Permits in Jeopardy


by Dennis J. Raff
Executive Director,
Horseshoe Bar Action & Research (HBAR)

Legislative and Regulatory Update


• Roadless Rule back in court again
• New mining regulations considered in Europe
• PLP in court on behalf of miners
• Karuk Tribe to appeal
• NEPA rewrite drive gets boost from Katrina

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