| Author: | Walker, Harlan A. |
|---|---|
| Year: | 1934 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:6804 |
| Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 6804 |
| Subjects: | Gold mines and mining--Mexico--Chihuahua (State) |
| Silver mines and mining--Mexico--Chihuahua (State) | |
| Mines and mineral resources--Mexico--Chihuahua (State) | |
| Link: | https://hdl.handle.net/2027/mdp.39015077569229 |