Idaho-Maryland Mine—History Restarted
August 2003 by Don RobinsonIt was late October 1850, and, as the story goes, George McKnight was rushing along trying to round up his cows when he stumbled. He was not a happy man as he kicked the fist-sized rock in disgust. The disgust changed quickly to interest...
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.
The behavior of a trommel is dependent on how it is designed and set up. Important design characteristics include feed rates, screen perforation sizes, cylinder size, rotation speed and incline.
The Atomic Energy Commission (AEC) was created soon after the war. One of their first deeds was to pass the Energy Act of 1946. This, among other things, provided monetary incentives for nearly every stage of mine development and operation.
Joy was written on his face, holding up the nugget—his first ever nugget—that he and his grandpa dug up together.
Superior Court Judge Karen L. Dixon granted the temporary restraining order on July 3, 2013.
In the simplest sense, drills can be divided by their mode of action—percussion, rotary or a mixture of the two.
The Bawl Mill • House Resources Committee Addresses Environmental Scare-Tactics —by House Resources Committee & Chairman Richard Pombo • Precious Metals in the Patagonia Mountains • Over the Divide • Montana Candidate Sees Natural Resources as Path to Recovery • Judge Rules Against Oregon Miners—Battle Continues • Lake County "Diamonds"—Renewed Value for an Old Favorite • Moving the World's Largest Machine—The Bucyrus 2570W Walking Dragline • Mother Lode Gold, California • News From the Pacific Legal Foundation • Melman on Gold & Silver • Maine to Create Mineral Park • Mining Stock Quotes and Mineral & Metal Prices