All Articles
Platinum—Group Metals
September 1999 by Guest Writer
by Henry E. HilliardExcerpted from USGS "1998 Annual Review"
Solar-Powered Placer Sampling Equipment
One hundred and seven years ago the world’s first electric-powered bucket line dredge started to work in Montana. This summer, Montana likely saw its first solar-powered Denver Gold Saver put to work.
Picks & Pans: Gold Recovery in Placer Mining Operations
Two of the major factors affecting the profitability of a placer mining enterprise are the relative efficiency of the mining equipment, and the rate and percentage of recovery obtained while conducting mining operations.
Who is a Qualified Person?
So you think you have an ore deposit? The work has been long and hard, but there are a few drill holes, lots of samples and assays. The data is in a reliable computer and there may be a mine at the end of the tunnel. What is the likelihood of a profitable operation? Can you raise capital for development or exploration?
Legislative and Regulatory Update
• Bill to address Forest Service Travel Management restrictions
• Suction gold dredging challenge finally under way
• EPA nullification bill fails in Idaho
• Another bad bill
Mining Stock Quotes and Mineral & Metal Prices
Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Romance of the Old Silver King
One of Arizona’s richest silver producers was the fabulously rich Silver King Mine of Pinal County. This incredible deposit was first discovered in 1875 during the construction of the famous Stoneman Grade, which connects present day Superior to Globe, Arizona. From 1877 to 1888 the famous Silver King Mine was in operation and during that brief span of time it produced an astounding $16,000,000 in silver.
Subscription Required:
The Bawl Mill
• Over the Divide
• Our Readers Say
• Feds Eye Restrictions on AZ Archaeological Sites
• IMF Reconsidering Gold Sales to Finance Debt
• Governors Focus on Aid for Laid-off Miners
• Nevada Counties, Towns Get Forest Service Grants
• Labor Dept. Approves Aid to Laid-off Nevada Miners
• Company Notes
• ISEE Celebrates 25 Years
• Picks & Pans: Basic Dry Washing Operations in Gold Placer Mining
• Washington Miner Wins Poetry Contest
• Gold Coin Sales Boosted by Low Prices
• The Klamath Mountains
• Silver Posts Best Price in 11 Years—Strong Investment Interest and Steady Demand Cited
• Historic Mining at Mount Diablo, CA
• Gold in the Drum Mountains
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
Free:
Legislative Update
