All Articles
The Fire Assay of Fly Eyes
July 2002 by Dr. Ralph E. Pray
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.Additional articles that might interest you...
Historical Mining Methods
May 2004
The discovery of gold at Sutter’s Mill in 1848 started the great gold rush to California. The account that drew national and worldwide notice was a small, two-inch item at the bottom of the front page of the March 15, 1848 issue of the “Californian,” published in San Francisco. The article was attributed to B.R. Buckelew, and mentioned quantities of gold just being “gathered.”
The discovery of gold at Sutter’s Mill in 1848 started the great gold rush to California. The account that drew national and worldwide notice was a small, two-inch item at the bottom of the front page of the March 15, 1848 issue of the “Californian,” published in San Francisco. The article was attributed to B.R. Buckelew, and mentioned quantities of gold just being “gathered.”
Wyoming's Billion Dollar Nugget—The Trilogy Ends
July 2011
With eight loads processed, a pumpkin-size rock fell into the hopper, stopping the whole operation until I could lift it out.
With eight loads processed, a pumpkin-size rock fell into the hopper, stopping the whole operation until I could lift it out.
Company Notes
October 2004
• Washington Group Int'l
• Robinson Nevada Mining Co.
• Little Squaw Gold Mining Co.
• Newmont Mining Corp.
• Compania de Minas Buenaventura
• Washington Group Int'l
• Robinson Nevada Mining Co.
• Little Squaw Gold Mining Co.
• Newmont Mining Corp.
• Compania de Minas Buenaventura
Northwest Miners Rally a Success
November 2004
This year’s rally worked extremely well with over twenty exhibitors and four seminars on various aspects of mining running throughout, as well as active river demonstrations of equipment. The hands-on approach, allowing people to try the suction dredges and power sluices, recovered well-distributed fine gold.
This year’s rally worked extremely well with over twenty exhibitors and four seminars on various aspects of mining running throughout, as well as active river demonstrations of equipment. The hands-on approach, allowing people to try the suction dredges and power sluices, recovered well-distributed fine gold.
Detecting Clay Seams
November 2015
Because the old timers were so good at locating the better paying deposits—most of them along clay seams in this particular area—it makes good sense to try and locate these clay lines at old mining sites.
Because the old timers were so good at locating the better paying deposits—most of them along clay seams in this particular area—it makes good sense to try and locate these clay lines at old mining sites.
Legislative and Regulatory Update
November 2001
• Forest chief asks Norton to end Oregon mining moratorium
• DOI orders review of "science" used in Klamath Basin decisions
• BLM Launches EIS for Conservation and Restoration of BLM Public Lands in Western U.S.
• Fish & Wildlife service approach to critical habitat ruled unlawful in Arizona case
• Forest chief asks Norton to end Oregon mining moratorium
• DOI orders review of "science" used in Klamath Basin decisions
• BLM Launches EIS for Conservation and Restoration of BLM Public Lands in Western U.S.
• Fish & Wildlife service approach to critical habitat ruled unlawful in Arizona case
Eolian Placer Gold
February 2012
I would first like to mention that I am not a geologist. I have, however, spent the last 8 years intently searching for gold nuggets with a metal detector. I have found gold in numerous locations, and in several different types of gold deposits.
I would first like to mention that I am not a geologist. I have, however, spent the last 8 years intently searching for gold nuggets with a metal detector. I have found gold in numerous locations, and in several different types of gold deposits.
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