Turning Acid Mine Drainage Into Drinking Water?—Grass Valley Company May Have the Answer
September 2000 by StaffHPT Research recently tested their patented process for treating Acid Mine Drainage (AMD) on thousands of gallons of contaminated water at the Mammoth Mine.
As the river dredgers soon learned, it was not a good idea to leave your dredge in the Fortymile River over winter.
In this article, part of an ongoing series taking a look at critical metals in our economy, we will examine the mining and use of the metal zinc.
In Chicken I had my first experience with the famous Alaska blue clay, sometimes called the blue layer. The blue layer is where the best fine gold was to be found.
• The "2 Million Dollar Man"
• A record worth breaking
• By the numbers...
- Oregon miners petition US Supreme Court in Bohmker v. Oregon
- Wheeler receives hearing as EPA administrator
...it is beginning to appear that we are recently witnessing a gradual buildup of background information that could lend strength to the arguments for ultimately higher gold and silver prices.
The Bawl Mill • Over the Divide • A Word from the Editor • Guest Editorial—Globalizing Mining in America, Part II • Gold Point, Nevada—A One-Man Mining Town Restoration • Rare Coin Makes a Mint at Auction • Letter to the Editor • Jackson Hole Gold, Wyoming • Picks & Pans: Big River Dredging in Northern California • Fake Assays & Assayers • Everything You Need to Know About Gold Wheels • Exceptional Gold Dredging in New Zealand • Lightning Creek, British Columbia • Mine Reopening Could Revive Region • Willow Creek Dredging Trip • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • More Treasure From Sunken Ship