Geologic map of the North Keystone mine, Copperopolis, California
Open-File Report
43-41
By: G.R. Heyl, J. B. Hadley, and G.L. Quick
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Abstract
Suggested Citation
Heyl, G., Hadley, J.B., Quick, G., 1943, Geologic map of the North Keystone mine, Copperopolis, California: U.S. Geological Survey Open-File Report 43-41, 1 map, https://doi.org/10.3133/ofr4341.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Geologic map of the North Keystone mine, Copperopolis, California |
| Series title | Open-File Report |
| Series number | 43-41 |
| DOI | 10.3133/ofr4341 |
| Year Published | 1943 |
| Language | ENGLISH |
| Description | 1 map |