Export 1 results:
Filters: Author is Baldwin, Ewart Merlin  [Clear All Filters]
1961
Baldwin, Ewart Merlin. Geologic map of the Lower Umpqua River area, Oregon [cartographic material] In Geological Survey (U.S.). Oil and Gas Investigations. Washington, D.C: The Survey, 1961.
→ ngmdb.usgs.gov/Prodesc/proddesc_5358.htm