History & Geology
ICMJ Visits Grass Valley, California
March 2023

Exploring Iron Oxide Copper Gold Deposits
The excitement over IOCG deposits began with the discovery of a monster deposit at Olympic Dam in Australia in 1976. The discovery was accidental as the operator was searching for strata-bound copper deposits.
California's Mother Lode Quartz Veins

The Miner’s Switchback
Common thought is the switchback slows the velocity of the rushing water and gold drops out from the cut bank to a fill gravel bar within or below the switchback. I am not going to disregard that model; however, I hope to improve upon it.
Alaska Gold: Lisianski Inlet's First Bonanza
In 1967, a local resident showed me a pouch of small gold nuggets and flakes. Several years later I asked the same person where that gold was found. He responded, “From the streambed below the old stamp mill at Apex.”
The Downieville Gold District

Alaska: Kodiak Islands Mineral Resources

Why So Much Gold in Nevada?
Nevada produces about 75% of all the gold mined in the US. This means that all the other 49 states combined only produce 25%, and this includes California, Alaska and Arizona.
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Metal Detecting Adventure Leads To First Nugget Of 2023!
• Dont Stop Learning
• Chasing Those Crumbs
• Time For Some Desert Gold!
• Better Worse: More Boo-Boo's - Part 3
• Resource Maven Independent Analysis of the Resource Markets
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Bawl Mill
• Legislative Update
• Blast From the Past - May 1961 Dedicated To The Stories Of Mining
• PLP Update March 2023