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Mining and milling methods and costs in the Alma district, Colorado
| Author: | Guiteras, Joseph Ramon, |
|---|---|
| Year: | 1940 |
| Document Type: | USBI |
| Issuing Agency: | U. S. Dept. of the Interior, Buraeu of Mines, |
| SUDOC: | I 28.27:7101 |
| Series: | United States. Bureau of Mines. Information circular, |
| Report Number: | 7101 |
| Subject: | Mines and mineral resources--Colorado--Alma |
| Link: | https://hdl.handle.net/2027/mdp.39015078534925 |
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