All Articles
Placer Testing with Large Samples
June 2000 by Dr. Ralph E. Pray
Of all the difficult gold placer sites to evaluate, none can compare with trying to dig to bedrock through twenty or thirty feet of soaked overburden through which water is slowly seeping downgrade.
The Gold Hill and Iowa Mine 1895-1938
Mining was curtailed at the Gold Hill Mine in Quartsburg, Idaho, in September 1895, because the owners disagreed about the profitability of pumping large volumes of water from the workings and mining the sulfide ores encountered in the lower levels. In June 1896, the property was sold at auction to A. H. Boomer of San Francisco, California for $4,500. The following day Boomer deeded the mine to...
A True Endangered Species
Immediate action is needed. I would like to recommend that Homo sapiens be listed as a “threatened species” under the Endangered Species Act (ESA).
Directory of Active Mines in Arizona Available
The Arizona Department of Mines and Mineral Resources has released the Directory of Active Mines in Arizona, 2001-2002.
The Treasure Detective
Finding a new gold nugget patch, a cache of old bottles, valuable old coins, jewelry, and artifacts can be as easy as finding a long lost uncle. You just need to do a little detective work so that you can find his address and then acquire a map to his house. Sound simple? It is.
From Curiosity to Mine Owner
His brother’s friend showed him a vial of gold that originated from his family’s mine in Honduras. Within two weeks Ernie had flown to Honduras to get a first-hand tour of the historic mine and the primitive operation underway to recover the gold.
Prospecting for Silver With a Geiger Counter
Light-colored volcanic tuff or tuffaceous sandstone often contains small amounts of uranium, enough to be detected with a sensitive radiation detector. Sometimes, the mass effect of the radiation is substantial.
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The Bawl Mill
• Our Readers Say
• Guest Editorial—Unreasonable Interpretations
• Ruling Awards Giant Nugget to Finder
• Letter to the Editor
• Traditional Adversaries Reach Agreement
• The Gold Belts of Georgia
• Company Notes
• Gondwana Gold Gravels
• Quick Thinking & Rescue Devices Save Two Lives
• Picks & Pans: The Discovery Gulch Diggings
• Prospector Finds Cache of Emeralds in North Carolina
• My Old Carbide Lamp
• Melman on Gold & Silver
• Hands & Pans on the South Yuba River
• Permafrost Tunnel Shows Cross-sections of Past
• Mining Stock Quotes and Mineral & Metal Prices
