Shenandoah

1999

1:24k

Shenandoah

1955

1:24k

Shenandoah

1955

1:24k

Shenandoah

1955

1:24k

Shenandoah

1955

1:24k

Shenandoah

1976

1:24k

Shenandoah

1955

1:24k

Shenandoah

1950

1:24k

Shenandoah

1950

1:24k

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.

1884

Geological Survey of Pennsylvania

1:10k