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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.Rand, Red Mountain, Atolia Mining Districts of Kern and San Bernardino Counties, California
This area could be re-evaluated for placer scheelite and gold potential in the future along with sand and gravel processing…
Company Plans to Develop Cabinet Mountains Mine
A Spokane mining company says it plans to develop a silver and copper mine in the Cabinet Mountains Wilderness Area on the Idaho-Montana border.
California State Gold Panning Championships
This year’s 2015 California State Gold Panning Championships were wild and hectic.
Highbanking for Gold
Pumps can be set up quite a distance away horizontally from the sluice, even hundreds of feet. It will work so long as there is sufficient water at the source where the pump is located. Vertical distance is more of a problem than horizontal distance; 30 to 40 feet is the maximum vertical climb for most pumps.
Conductive Minerals and Your Metal Detector
...most prospectors don't even think about the conductivity of minerals, but there are some that do conduct electricity to a certain degree, so metal detectors will respond to them.
Reality of the Klondike
I saw gold this summer. The kind of gold that I haven’t seen since ‘81. The kind of gold that rattles in the pan. The kind of gold that would start a stampede—even in 1898.
Emergency Dredging Closures in Washington State
The Washington Department of Fish and Wildlife (WDFW) issued emergency rules without public comment just prior to our publication deadline.
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