Prospecting and Mining Old Mine Sites
December 2016 by Alex DolbeareIn some places valuable ores can be found within the waste material of mine dumps, sorted ore piles, and detrital vein matter at the surface. Though many of these old mine sites can be an excellent source of gold, not all are created equal.
I love to dry wash old nugget patches found by detector operators, and I have found my fair share of gold dry washing those areas. I have also found a few nuggets using a detector on the bedrock exposed by dry washing the patches.
The first and most important thing of the sampling process is to try to be as unbiased as possible. There is a natural tendency to select rock that looks the best—even unconsciously.
...we will continue our examination of the rich streams and mining districts, and then take a look at some of the big nuggets that have been found here.
Fortunately, there are products on the market that can address these problems and make a small-scale mining operation feasible.
A week later, a small team of us hit it again, and this time the gold really showed up.
BLM stated we had 30 days to amend our claim so that it fit within one 40-acre square or we would forfeit the claim.
Your odds of going home with gold will be higher using the discrimination mode, even if you might have misread one of the targets you rejected.
The Bawl Mill • Our Readers Say • Ask the Experts: What type of wetsuit do I need? • Prospector's Guide to Rock Breaking and Blasting • MMAC Update • Pros and Cons of Big Detector Coils • Detecting Strategies for Heavily Forested Areas • Mining Districts and Community Outreach • Alaskan Gold Adventure • Learning the Game and the Power to Change It • Central Idaho Federal Employees Back to Work With Local Help • Mining Stock Quotes and Mineral & Metal Prices • Melman on Gold & Silver