Prospecting & Detecting
Selenium, Mercury and Suction Dredging—Studies Contradict CA State Water Resources Board
April 2013 by Scott Harn
Federal and state regulatory agencies often cite mercury and methyl mercury in our waterways as a major factor for further restrictions on placer mining, and on suction gold dredge mining, in particular. However, these regulatory agencies are minimizing selenium and its neutralizing effects.Follow the Line
Four nuggets, ranging from one to four pennyweight, had been found originally. All four nuggets were found in a line about ten feet apart from each other.
Tips for Detecting Old Hydraulic Pits
There are several counties around Shasta County that offer very good gold detecting. Many of these locations are old hydraulic pits. While detecting these old pits over the years I have come up with some ideas on how to go about hunting them.
Placer Gold Deposits of Utah
The placer deposits of Utah occur in two distinct types of environments. These are 1) placers found adjacent to, and derived from, gold, silver and base-metal deposits; and 2) placers found in major rivers and derived from unknown, distant sources.
Ask the Experts
What are the tell signs of garnet deposits?
Out of the Ashes—New Access to Gold
As I arrived at my detecting location, I got all my gear and headed up the trail. I had to stop and take in the devastation all around me.
Research and Fieldwork Yield Some Promising Gold
A week later, a small team of us hit it again, and this time the gold really showed up.
The Hill of Gold
I was amazed and surprised, and I took a moment to admire how beautiful this coarse chunk of gold was. It later weighed exactly one-half ounce.
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The Bawl Mill
• Ask the Experts - processing plants that can extract rare earth metals
• Ask the Experts - what does MDB&M stand for?
• Ask the Experts - proper mining claim procedures
• The Hughes Creek Placers, Montana
• Benefits of a Detecting Partner
• Excavator Testing Wet Placer Ground
• Hard Rock Milling: A Matter of Scale
• Paperwork Guy—A Cautionary Tale
• ICMJ Online Forum Now Available
• Detecting For Gold—Are You Up For It?
• A Trip Down the Yukon River
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
