Ore deposits of the Helena mining region, Montana /
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| Author / Creator: | Knopf, Adolph, 1882-1966, author. |
|---|---|
| Imprint: | [Washington, D.C.] : Department of the Interior, United States Geological Survey, 1913. Washington : Government Printing Office |
| Description: | 1 online resource (143 pages, VII pages of plates) : illustrations, color maps. |
| Language: | English |
| Series: | Bulletin / Department of the Interior, United States Geological Survey ; 527 Bulletin (Geological Survey (U.S.)) ; no. 527. |
| Subject: | |
| Format: | E-Resource U.S. Federal Government Document Book |
| URL for this record: | http://pi.lib.uchicago.edu/1001/cat/bib/10318307 |