English
43 pages℗: 26 cm · "Increased leisure time and increased interest in the out-of-doors is leading more and more families to experiment with placer mining of gold, and sometimes even going on into small-scale production. This Bureau of Mines report supplies basis information on areas of occurrence, equipment needed, prospecting, sampling, mining, and regulations concerning the possession and sale of gold"--Page 1 · Includes bibliographic references (page 41-43)
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Gold mines and mining · Hydraulic mining · Placer mining · Prospecting · Gold mines and mining · Hydraulic mining · Prospecting · Placer mining