A cut from a 1892 topographical map showing the area of operations of the Lykens Valley Coal Company (Short Mountain Colliery) at Bear Gap, Lykens and Wiconisco, Dauphin County, Pennsylvania. […]

A cut from a 1943 topographical map showing the area of operations of the Lykens Valley Coal Company (Short Mountain Colliery) at Bear Gap, Lykens and Wiconisco, Dauphin County, Pennsylvania. […]

A cut from a 2016 topographical map showing the area of operations of the Lykens Valley Coal Company (Short Mountain Colliery) at Bear Gap, Lykens and Wiconisco, Dauphin County, Pennsylvania. […]

A 2016 photograph of the only surviving major building from the coal mining operations at the Short Mountain Colliery, Bear Gap, north of Lykens and Wiconisco, Dauphin County, Pennsylvania. The […]

Short Mountain Colliery, located in Bear Gap north of Lykens and Wiconisco, Dauphin County, Pennsylvania, was the scene of many fires over the years.  A fire in early 2016 destroyed […]

An undated photo post card view of a man and mules coming out of a coal mine near Pottsville, Schuylkill County, Pennsylvania.  This was typical of the kind of work […]

An undated, colorized photo post card view of young men hauling away slate from coal mine.  This was typical work as mines in the anthracite region, including at Bear Gap, […]

An undated photo post card view of men working “out on the dump” at a coal mine near Wilkes-Barre, Luzerne County, Pennsylvania.  This was typical of the kind of work […]