| Author: | Cole, W. A. |
|---|---|
| Year: | 1957 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7780 |
| Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 7780 |
| Subjects: | Mines and mineral resources--Cost of operation |
| Mines and mineral resources--Illinois--Jo Daviess County--Management | |
| Lead mines and mining--Illinois--Jo Daviess County | |
| Zinc mines and mining--Illinois--Jo Daviess County | |
| Link: | https://hdl.handle.net/2027/mdp.39015078460006 |