Gold Near Boulder, Colorado
July 1999 by Edgar B. Heylmun, PhDSeveral mining districts near Boulder, Colorado mark the northeast end of the 240-mile-Iong Colorado Mineral Belt, which cuts diagonally across the Rocky Mountains.
Every miner has encountered rattlesnakes in his work, and some may have been bitten. The writer has never been bitten, but has worked with people who have been. It is not a pleasant experience.
Looking at the exceptions to the basic rules is sort of an advanced prospecting discussion, but the readers of ICMJs Prospecting and Mining Journal are plenty able to handle it.
While gold nugget detecting with a pulse induction machine, most people will be swinging a mono search coil and will have their machine set in all-metal mode. However, the newer pulse induction machines can and will discriminate iron very effectively...
• House members "earn" another raise
• So how much is the national debt?
I know big mining companies use cyanide and other leach systems to recover gold from ore. Is this the only economically feasible way to recover the values?
• On a personal note...
• The numbers don't lie...much
• The blame game
The Bawl Mill • Gold Hunters Hit the Web in Fight with Missile Range • Religious Broadcaster in Liberia Mining Venture • Kazak Government Collects Gold from Residents • Recreational Gold Panning on the South Yuba River • Groups Wonder Meaning of Call for More Wilderness • Mining Claim Maintenance Fee Due • Desert Bonanza • Company Notes • The Carissa Gold Mine, South Pass, Wyoming—A Sleeper? • Tantalum • Building the American Dream • Picks & Pans: A Pay Streak in Slate • Elizabethtown: Uncovering a Buried California Mining Community • California Diamonds • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Silver Demand Driving Mine Production Up—Mexico Remains Number One Producer • Looking Back