Has it occured to anyone to try this metod of mine exploring?

[Prime]

Build a robot to go into the mine shafts for you with a metal detector attached somehow. There are various robot kits available for purchase out there. I'm sure there is a way to make this work. Besides searching for the gold it could test the mine for toxins and radioactivity as well as other dangers.

 

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[djui5]

It's been done