Prospecting & Detecting
Prospecting Underground: Use Caution
April 2011 by Don Robinson
In underground placer work, the contact point of the bedrock tunnel and the gravel is a very weak point and always has to be timbered. The bedrock here is thin, fractured, and the gravels loose from many years of oxidizing.Ganes Creek Hits 10 Years—Part I
Find huge gold nuggets with your metal detector! That has been the promise, and for a lucky group of detectorists in the Ganes Creek “Pound Club” the reality of finding gold at Ganes Creek, Alaska.
I Finally Made It to Northern Nevada
After a while I got a very nice signal and out came a sweet kidney-shaped bit of gold weighing about three grams.
Prospecting for Gold in Baja California
It was one of those awkward situations as we walked, fatigued and too thirsty to speak a word.
Detecting During Summer Heat
This concept of detecting does not always work as we sometimes get a week or so where the temperatures rise to 116°—sometimes more.
Gold Indicators—What to Look for in the Goldfields
Some of the items that I’m going to go over are outcroppings, ditches, exploratory trenches and contacts/surface materials. I am going to speak about each of the above items in as much detail as I can, and then towards the end of this article I will tie them together.
Ask the Experts
What are the tell signs of garnet deposits?
Mud Men: Pocket Miners of Southwest Oregon—Part I
Rocks and minerals associated with clay seam gold deposits in southern Oregon are often in sedimentary rock units at least partially metamorphosed into argillite. They are also associated with mafic volcanic rocks, basalts and gabbro that...
Subscription Required:
The Bawl Mill
• Mining Claims—What to Know Before You File
• Small-Scale Concentrating and Recovery Methods
• 5th Circuit Ruling May Benefit Miners
• Indicator Minerals for Gold & Silver
• Mud Men: Pocket Miners of Southwest Oregon Part III
• Legislative and Regulatory Update
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Silver Mining Returning to Texas
Free:
A New Look at Old Mines
• Proposed Regulations for California Suction Dredging
