| Title | Geologic map of the Lower Umpqua River area, Oregon [cartographic material] |
| Publication Type | Book |
| Year of Publication | 1961 |
| Authors | Baldwin, Ewart Merlin |
| Secondary Title | Geological Survey (U.S.). Oil and Gas Investigations |
| Number | OM-204. |
| Date Published | 1961 |
| Publisher | The Survey |
| City | Washington, D.C |
| Call Number | OSU Libraries: Valley Maps G3701 .H8 svar .U51 OM-204, Digital Open Access |
| Keywords | geology, Lower Umpqua River, maps |
| Notes | It is possible to download previewed sections of the map. |
| URL | https://ngmdb.usgs.gov/Prodesc/proddesc_5358.htm |
| DOI | 10.3133/om204 |
| Label | 220 |
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