Composite Map:Mahanoy, Shenandoah and New Boston basins, Schuylkill County, Centralia, Girardville and Mahanoy basins, Mount Carmel, Centralia, Coal Ridge or Montana, Germantown, and Mahanoy basins, Schuylkill, Columbia and Northumberland Counties.

(Composite Map to) Mahanoy, Shenandoah and New Boston basins, Schuylkill County, Centralia, Girardville and Mahanoy basins, Mount Carmel, Centralia, Coal Ridge or Montana, Germantown, and Mahanoy basins, Schuylkill, Columbia and Northumberland Counties.

Geological Survey of Pennsylvania

1884

1885

Second Geological Survey of Pennsylvania

1:9 600

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