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Possibilities of manganese production at Leadville, Colo.
| Author: | Hedges, J. H. |
|---|---|
| Year: | 1940 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7125 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 7125. |
| Subjects: | Manganese mines and mining--Colorado--Leadville |
| Manganese--Colorado--Leadville | |
| Link: | https://hdl.handle.net/2027/mdp.39015078534065 |
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