History & Geology
Hard Rock and Placer Gold of Manhattan, Nevada
October 2019 by Chris Ralph
He found 5 to 7 feet of gravel containing half an ounce per yard. This started a rush of placer activity and several other shafts were sunk, with some large multi-ounce nuggets being found.
Exploring and Mining for Uranium
For a time uranium was more popular with prospectors than gold, but this is no longer true, and it has been decades since it was common to see individuals armed with Geiger counters out in the field.
Prospecting With The Help of Fluvial Geomorphology
Quiz yourself about the stream in figure 5. Based on your previous knowledge of where gold is found in a stream and in this article, where do you think you will find the most gold?
Gold in Tertiary Gravels
In some places, semi-continuous sections of riverbed can easily be linked in many places to identify the path of the ancient rivers.
The Ups and Downs of Geologic Faults
Faults are fractures, breaks and broken zones in the Earth’s crust where one side of the break has moved relative to the other, and they come in many different varieties.
Can You Recognize Valuable Ores?
The process of recognizing ores all starts with being able to recognize some basic minerals and knowing what hard rock ore looks like in the districts where you prospect.
ICMJ Visits Colfax, California
February 2023
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The Bawl Mill
• Ask The Experts - Do you have more info on Silver Peak?
• Ask The Experts - Forest Service blocking claim access
• Green Valley's Fine Gold Patch
• Gold Prospecting for Better or Worse: Powerless
• Revisiting Old Haunts
• How to Refine Silver—Pt II
• Where to Start: Advice for the Beginning Detectorist
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
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• PLP Update
• MSHA Moves Ahead on Silica RFI But Leaves All Options Open
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