May 2001 by Staff• Canyon Resources
• Vista Gold Corp.
• Placer Dome Inc.
• Royal Gold, Inc.
Colorado-Utah-Wyoming oil shale was first reliably discovered to contain gold and silver by the U.S. Bureau of Mines in the 1920s. Although most of this vast shale resource, up to 1,000 feet in thickness, contained nil or barely detectable values, many brown shale samples fire assayed here over the past thirty years have yielded up to 0.02 ounces per ton (opt) Au and 2.0 opt Ag.
The Christmas and New Year holidays were over and thoughts were slowly returning to normal after the hectic holiday pace both at work and home. As the festivities died away, an old familiar urge began growing...
Robert Sanregret—Attorney at Law
Western Mining Council
National Association of Mining Districts
The right speed accumulates only the heavy materials and allows all of the lighter stuff to flow through. This optimum speed is dependent on the size of the gravel you need to move through the system.
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