Gold Detecting Strategies for Hydraulic Mines and Debris Flows | ICMJs Prospecting and Mining Journal
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Gold Detecting Strategies for Hydraulic Mines and Debris Flows

The old timers typically washed these areas down to bedrock, and some areas appear terraced. I would imagine this is because these hydraulic mines were generally where the miners found old Tertiary river channels on the sides of mountains that were gold-bearing.

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