Gold mining and milling methods and costs at Vallecito Western drift mine, Angels Camp, Calif [microform]
Saved in:
Other Authors: | |
---|---|
Format: | Government Document Microfilm Book |
Language: | English |
Published: |
Washington, D.C. :
[publisher not identified],
1932.
|
Series: | Information circular (United States. Bureau of Mines) ;
6612. |
Subjects: |
Norlin Library - Government Information - Microform
Call Number: |
EBD C22.11-6612
|
---|---|
EBD C22.11-6612 | Restricted Place a Hold |