All Articles
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...
Detecting for Possible Mid-Range Eluvial Gold
September 2006
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:
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:
Why Is The Gold On Bedrock—Or Why Is It Not?
January 2022
Gold on the bedrock is a good rule of thumb, but not one that is 100 percent effective. There are plenty of exceptions. So, how does a prospector recognize those exceptions?
Southern Oregon's Illinois River—A Lesson in Sharing
November 2013
Our theory was that a dredge would collect far more material in a shorter period of time, leaving us with ounces of gold every day.
Our theory was that a dredge would collect far more material in a shorter period of time, leaving us with ounces of gold every day.
Company Notes
March 1999
• Vista Gold Corp.
• Latitude Minerals Corp.
• Altair International Inc.
• Homestake Mining Company
• Kinross Gold Corp.
• Rayrock Resources Inc.
• Vista Gold Corp.
• Latitude Minerals Corp.
• Altair International Inc.
• Homestake Mining Company
• Kinross Gold Corp.
• Rayrock Resources Inc.
Recreational Gold Panning on the South Yuba River
July 1999
The Forest Service recently announced a new area set aside for recreational gold panning on the South Yuba River, east of Nevada City.
The Forest Service recently announced a new area set aside for recreational gold panning on the South Yuba River, east of Nevada City.
Claim Filings Up in the Northwest
February 2005
Higher gold prices have led to a doubling of mining claims in the past year in Oregon and Washington.
Higher gold prices have led to a doubling of mining claims in the past year in Oregon and Washington.
Copper Price Keeps Canadian Miners Busy
April 2006
The Canadian copper industry is benefiting from the current high metal prices, and exploration activity should remain high over the coming year as new mines are developed and continuous improvement programs increase efficiencies at existing operations.
The Canadian copper industry is benefiting from the current high metal prices, and exploration activity should remain high over the coming year as new mines are developed and continuous improvement programs increase efficiencies at existing operations.
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