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Over the Divide

Charles L. Butler
1920 - 2014

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Winter Dredging


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...

Looking Back


Excerpts from California Mining Journal, our original title, published 50 years ago this month.

Mining Trade Group Sues Nevada Over Tax Initiative


The Nevada Mining Association has filed a lawsuit to block a petition asking state voters to raise taxes on mining.

The Fire Assay of Fly Eyes


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.

Quartz and Chalcedony in Wyoming


Quartz is a common rock-forming mineral found in many shapes, forms, and colors.

Fluorescent Mineral Prospecting


Ultraviolet light is divided into three levels, labeled A, B and C depending on the wavelength, with C having the shortest wavelength and the most energy.

Southern Oregon's Illinois River—A Lesson in Sharing


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.

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