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Mining methods at the Block P Mine of the St. Joseph Lead Co., Hughesville, Mont.
| Author: | Vanderburg, William O. |
|---|---|
| Year: | 1931 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
| SUDOC: | C 22.11:6416 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 6416 |
| Subject: | Mines and mineral resources--Montana |
| Link: | https://hdl.handle.net/2027/mdp.39015077576018 |
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