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Alluvial Fans
April 2002 by Edgar B. Heylmun, PhD
Alluvial fans are essentially dry land “deltas” which can be found in all climates. However, they are best developed in arid and semi-arid regions, where they may be many square miles in area. They are built up by outpourings of silt, sand, and gravel caused by seasonal run-off, as well as by boulders and cobbles carried by flash floods.Additional articles that might interest you...
Judge Rules Against Oregon Miner
December 2009
A federal judge convicted Oregon miner Clifford Tracy of illegal mining while digging for gold on US Forest Service land.
A federal judge convicted Oregon miner Clifford Tracy of illegal mining while digging for gold on US Forest Service land.
From Vietnam to Wedding Bands
February 2017
It’s a common symptom of gold fever for miners to be very hesitant to let go of gold they’ve found or even have it made into jewelry. I confess, I suffer from the same incurable disease!
It’s a common symptom of gold fever for miners to be very hesitant to let go of gold they’ve found or even have it made into jewelry. I confess, I suffer from the same incurable disease!
When Legends Were Made and Fortunes Found
August 2011
Sylvester Smith and his younger brother Nathan were among this group who rode and led their Indian ponies, while climbing the rugged Salmon River breaks and rockhewn mountains, looking for a path that would lead them up and over the uncharted wilderness.
Sylvester Smith and his younger brother Nathan were among this group who rode and led their Indian ponies, while climbing the rugged Salmon River breaks and rockhewn mountains, looking for a path that would lead them up and over the uncharted wilderness.
The Spanish Silver of Mowry
August 2001
The Arizona mine and town that eventually became known as Mowry actually started with the discovery of a rich ledge of silver by either Spanish Jesuit priests or Spanish soldiers around 1736.
The Arizona mine and town that eventually became known as Mowry actually started with the discovery of a rich ledge of silver by either Spanish Jesuit priests or Spanish soldiers around 1736.
Dredging for Monazite in Idaho
October 2003
The advent of the nuclear age, after World War II, aroused concerns in government circles when officials realized the United States was entirely dependent upon foreign sources of supply for rare earth elements. This prompted the Atomic Energy Commission (AEC) to enlist the US Bureau of Mines Special Minerals Investigation Branch to evaluate monazite-bearing placers in the United States in 1948.
The advent of the nuclear age, after World War II, aroused concerns in government circles when officials realized the United States was entirely dependent upon foreign sources of supply for rare earth elements. This prompted the Atomic Energy Commission (AEC) to enlist the US Bureau of Mines Special Minerals Investigation Branch to evaluate monazite-bearing placers in the United States in 1948.
Legislative and Regulatory Update
June 2005
• Funds eliminated for federal land acquisitions
• ANWR leasing
• GAO scolds Fish & Wildlife
• Red Rock wilderness proposed again
• BLM websites still down
• Karuk lawsuit update
• Funds eliminated for federal land acquisitions
• ANWR leasing
• GAO scolds Fish & Wildlife
• Red Rock wilderness proposed again
• BLM websites still down
• Karuk lawsuit update
Picks & Pans: Gold Mining on Joie Osgood Ranch
January 2000
Butte County, California—On January 29, 1978, Peter and I received permission from Joie Osgood to pan and look for gold on her property. The 3800 acre property was located about four miles northeast of Honcut, Butte County, California.
Butte County, California—On January 29, 1978, Peter and I received permission from Joie Osgood to pan and look for gold on her property. The 3800 acre property was located about four miles northeast of Honcut, Butte County, California.
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