Map showing generalized thickness contours of the Pittsburgh coal bed in Pennsylvania, Ohio, West Virginia, and Maryland
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Open-File Report↗
Geology topics
David Brezinski
Publications and source records attributed to David Brezinski.
Map showing structure contours and overburden thickness isopleths of the Pittsburgh coal bed in Pennsylvania, Ohio, West Virginia, and Maryland
Explore the source record for details and available documents.
Open-File Report↗