| Title: | Pennsylvania Geological Survey, fourth series |
| Alternate title: | Punxsutawney quadrangle : geology and mineral resources |
| Author: | Ashley, Geo. H. (George Hall), 1866-1951 |
| Author: | Pennsylvania. Bureau of Topographic and Geologic Survey |
| Note: | Pennsylvania Bureau of Topographic and Geologic Survey, 1926 |
| Link: | page images at HathiTrust |
| No stable link: | This is an uncurated book entry from our extended bookshelves, readable online now but without a stable link here. You should not bookmark this page, but you can request that we add this book to our curated collection, which has stable links. |
| Subject: | Geology |
| Subject: | Geology -- Pennsylvania |
| Subject: | Mines and mineral resources |
| Subject: | Mines and mineral resources -- Pennsylvania |
| Subject: | Pennsylvania |
| Other copies: | Look for editions of this book at your library, or elsewhere. |
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