We Dig: 200 Years of Extraction in the Anthracite Fields of Pennsylvania
Andrea Krupp, Conservator
George Lehman, Coal Mine at Mauch Chunk (Philadelphia: C.G. Childs, ca.1837). Lithograph.
Draft of the Great Coal-Mine near Mauch Chunk exhibiting the various branches of the rail- road leading from it, and the situation of the workings on the 18th of July, 1827. Courtesy of Lehigh University.
Screenshot from https://www.minemaps.psu.edu showing the location of the Great Mine on Pisgah Mountain overlaid with an early 20th-century strip mining map.