Geology of Gold
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32:19
Gold EXPERT Explains Reading a River For Gold
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31:14
Rock Identification with Willsey: Conglomerate, Breccia, and Diamictite
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39:08
The BEST Placer Gold Research You've NEVER Seen
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11:43
The Most Valuable Plot Of Land In America
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59:50
Gold Geology Of Subduction Zones, North Cascades, Washington State
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15:07
Gold, Faults and Fluids
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13:35
How Inuit Build a Real Inuit Igloo in 2 Hours
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20:30