3.7 billion years ago the Earth formed as a ball of molten rock. The heavy material like gold and iron sank to the center. Geologic changes like volcanoes and tectonic plate movement made mountains and brought those heavy minerals near the surface. Erosion over billions of years has freed up surface gold which washes into rivers that are the lowest point.
70% of all the gold ever recovered was placer gold (from rivers).
b4
SGCP has been dredging for two years out of 3.7 billion. Dredge baby Dredge
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