Precious Metals in the Patagonia Mountains
August 2003 by Edgar B. Heylmun, PhDThe Patagonia Mountains are a small but rugged mountain range that adjoins the Mexican border some 9 to 16 miles east of the border town of Nogales. The range trends northerly for 14 miles and is about 10 miles wide, reaching an elevation...
The Carissa Gold Mine, South Pass, Wyoming—A Sleeper?
The Carissa is part of a patented group of claims (private property) near South Pass City in the southern Wind River Mountains of western Wyoming. The mine lies a short distance southeast of State Highway 28 which runs north to Lander and provides excellent access to the area.
Mining Pegmatite Deposits
With successively lower temperatures as the water mixture cools, new sets of minerals are formed and many of those stable at a higher degree of heat became subject to alteration as the temperature progressively moved lower.
The Skaergaard Intrusion
First put on the map by two British geologists in the 1930s, the Skaergaard igneous intrusion on East Greenland’s rugged mountainous coast is arguably one of the most studied and researched rock bodies in the world.
The Stonewall Jackson Mine, San Diego County, California
For obvious reasons southern California is not known historically for its gold mines. Gold production was concentrated heavily in the Sierra Nevada foothills in the northern part of the state. However, the high mountainous region of eastern San Diego County was the site of a number of productive hardrock gold mines, notably in the late 19th century.
Legislative and Regulatory Update
• Alaska Governor blasts state habitat division
• Laws proposed and reviewed in Washington State
• Comments needed on California's arsenic goals
• New explosives requirements
• Bill introduced to curb ESA abuses
Romancing the Rock
With the exception of well-established operators with proven reserves and years of field experience, the high price of gold brought a flood of speculators, con men, and real estate brokers into the mix who were not previously engaged in the gold mining market.
Ask the Experts
What to do with black sands
The Bawl Mill • House Resources Committee Addresses Environmental Scare-Tactics —by House Resources Committee & Chairman Richard Pombo • Over the Divide • Idaho-Maryland Mine—History Restarted • Montana Candidate Sees Natural Resources as Path to Recovery • Judge Rules Against Oregon Miners—Battle Continues • Lake County "Diamonds"—Renewed Value for an Old Favorite • Moving the World's Largest Machine—The Bucyrus 2570W Walking Dragline • Mother Lode Gold, California • News From the Pacific Legal Foundation • Melman on Gold & Silver • Maine to Create Mineral Park • Mining Stock Quotes and Mineral & Metal Prices