Report on the coal mines of the Monongahela River Region, from the West Virginia state line to Pittsburgh, including the mines on the lower Youghiogheny River 1 Description of the mines : with a map of the region, in two sheets; 12 heliotype pictures; 7 page plate maps, and 19 page plate sections of the Pittsburgh bed / by J. Sutton Wall
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| Format: | UnknownFormat |
| Sprache: | eng |
| Veröffentlicht: |
Harrisburg
Board of Commissioners
1884
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| Schriftenreihe: | Second Geological Survey of Pennsylvania Report of progress
K4 |
| Schlagworte: | |
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