RT @USGS: Historic USGS publication: [PUB] Roseburg folio, Oregon - Folios of the Geologic Atlas 49 (1898) https://t.co/ZAjQ7LYHNu https://…
38,464 followers
202 followers
RT @USGS: Historic USGS publication: [PUB] Roseburg folio, Oregon - Folios of the Geologic Atlas 49 (1898) https://t.co/ZAjQ7LYHNu https://…
11 followers
RT @USGS: Historic USGS publication: [PUB] Roseburg folio, Oregon - Folios of the Geologic Atlas 49 (1898) https://t.co/ZAjQ7LYHNu https://…
290 followers
RT @USGS: Historic USGS publication: [PUB] Roseburg folio, Oregon - Folios of the Geologic Atlas 49 (1898) https://t.co/ZAjQ7LYHNu https://…