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Mineral investigation of the Black Rock wilderness study area, Graham County, Arizona
| Author: | Ryan, George S. |
|---|---|
| Year: | 1985 |
| Document Type: | MAIN |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| Series: | [Open-file report] / Bureau of Mines, United States Department of the Interior, |
| Report Number: | [1985-5] |
| Subjects: | Mines and mineral resources--Arizona--Graham County |
| Prospecting--Arizona--Graham County | |
| Link: | https://hdl.handle.net/2027/mdp.39015095081728 |
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