All Articles
Simple Sluice Design
October 2002 by Michael S. Murray
One of the first pieces of prospecting equipment I acquired was a really nice little aluminum backpack sluice. I’ve used it for some time now and have always been impressed with how well it works for keeping the fine wire gold. But ever since I got on the Internet and started looking around for prospecting stuff, I have been toying with the idea of making a flexible conduit sluice.Detecting Canyon Bedrock in The Sierras
My plan was to go up the canyon along a ridge and then drop into the canyon whenever I came across a spot that might give me reasonable access.
The Basics of Exploration Leases and Contracts—Part I
Let’s take a look at these important property aspects individually, because they all affect the value of a property and how much mining companies might or might not be interested acquiring it.
The Tangential Impulse Water Wheel in California Gold Mining History—Part I
The modern tangential impulse water wheel, a device best suited for hydroelectric power production where high water head is available, is an ingenious device born in the historic gold mining industry of California in the 19th Century.
Alaska: Kodiak Islands Mineral Resources
The fresh material is worked and concentrated by the waves on the flat, wide beach platform. The waves wash away the lighter minerals, leaving the heavies near the bluffs and in depressions on the beach.Placer Gold in Idaho
Idaho is situated in the Rocky Mountains except for the southern third, which encompasses the Snake River Plain and desert mountains to the south. Elevations range up to 12,662 feet at Mt. Borah, with annual precipitation varying from 8 inches in the south to over 60 inches in the central mountains.
Reserves and Resources Explained
Reservers and resources are very important to prospectors and miners, but they may be vague terms to some.
ICMJ's Annual Index
Subscription Required:
The Bawl Mill
• Our Readers Say
• Placer Gold in Idaho
• Working the Belmont Mine Butte, Montana—1953
• Cobalt and Nickel in Missouri
• Sunshine Mine Video Brings Back Painful Memories
• Hardrock Detecting
• Gold Garbage: Scams New & Old
• Company Notes
• Picks & Pans: Confessions of a Professional Nuggetshooter
• Gondwana Gold and Diamonds
• Looking Back
• Ghost Towns of Washington County, Utah
• The Fire Within
• 2002 California State Gold Panning Championships—Foresthill, California
• Mining Stock Quotes and Mineral & Metal Prices
• Melman on Gold & Silver
