Small Mine Selective Blasting
January 2000 by Dr. Ralph E. PrayDrill holes in a mineralized vein often penetrate hidden layers of poor ore which, after blasting, end up diluting the production quality. Disseminated gold ores carrying two ounces per ton may be identical in appearance to adjacent vein material...
Sampling and mining a historic mining claim
I began detecting at the bottom of the gully and started making my way upstream. About mid-way there was a nice, flat stretch for about ten feet.
There you’re expected to be personally responsible in making decisions, and yes, it can be costly. When you are responsible for your own life, you live life more, and with it you certainly risk more.
• Inter-department letter, Forest Supervisor to Regional Forester seeks assistance in segregating a significant area of the San Bernardino National Forest from mineral entry.
• Conservation and Reinvestment Act (CARA) stopped in Senate Energy and Natural Resources Committee
• Forest Service meetings on Roadless Initiative have ended and the comment period closed December 20, but we have been advised that the public will have another opportunity for input.
• On November 8, the BLM held a hearing in Placerville, California, regarding withdrawal of 3,368.85 acres of public land along the South Fork of the American River.
Many locals are just waiting for California to allow dredging once more, especially with the current gold prices. There are still plenty of good opportunities for prospectors in this area, just as it has been for so many years.
Our group of six met in Foresthill, California, in mid-November. The weather was crisp, but not too cold. We had planned this trip on short notice and were all eager for the adventure ahead.
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
The Bawl Mill • Over the Divide • Our Readers Say • Letter from the Editor to our Readers and Advertisers • Administration Considers Bypassing Congress • First Woman to Draw Mining Pension • Mohave Mountain Placers, Arizona • High Court to Reconsider Wilderness Water Rights • Sixteen to One Takes on MSHA • Picks & Pans: Gold Mining on Joie Osgood Ranch • Gold • Company Notes • Millie's Tailings • Placer PGMs in Alaska • Mogollon—New Mexico's Remote Gold Camp • ICMJ 9th Annual Photo Contest Results • The Other Minerals of Mt. Diablo • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Looking Back