Gold mining and milling methods and costs at Vallecito Western drift mine, Angels Camp, Calif.
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| Online Access: |
Full Text (via ProQuest) |
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| Other Authors: | |
| Format: | Government Document eBook |
| Language: | English |
| Published: |
Washington, D.C. :
[s.n.],
1932.
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| Series: | Mines Bur. Info. Circ. No. 6612.
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| Subjects: |
Internet
Full Text (via ProQuest)Online
| Call Number: |
C22.11-6612
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|---|---|
| C22.11-6612 | Available |