Gold dredge
A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. Original gold dredges were large, multi-story machines built in the first half of the 1900s.
A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. Original gold dredges were large, multi-story machines built in the first half of the 1900s.
A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. Original gold dredges were large, multi-story machines built in the first half of the 1900s.
Source: Wikipedia "Gold dredge" · CC BY-SA 4.0
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