Geologic map of the Ashland quadrangle, Columbia and Schuylkill counties, Pennsylvania [cartographic material] Yale Public content

Author:
Publisher:
U.S. Geological Survey
Subject:
Geology
Spatial Coverage:
Pennsylvania, Columbia County, and Schuylkill County
Language:
English
Year:
1971
Date Issued:
2012-03-14T14:47:40Z
Date Modified:
2012-03-27T23:59:11Z
Library Catalog Record:
https://search.library.yale.edu/catalog/10425073
Digital Collections Record:
No Digital Collections record

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