Bear Valley Strip Mine

The Bear Valley Strip Mine is an abandoned coal strip mine located in Coal Township, Northumberland County, to the southwest of the town of Shamokin, Pennsylvania.

It lies in the Western Middle Field of the Anthracite belt in the Ridge-and-Valley Appalachians, where the Pennsylvanian Llewellyn Formation is exposed.

[1] The coal and other overlying rock has been removed by mining down to a resistant sandstone bed, revealing the three-dimensional structures of folding and faulting caused by the Alleghany Orogeny.

Students of geology have visited the location for decades due to the quality of exposures.

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View of the Bear Valley Strip Mine from the north wall facing southeast, with the "Whaleback" in center