Map of the coal fields of Pennsylvania. - Sisler, James Donaldson (Harrisburg, Pa. : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1929)
1 sheet, cut in 2 for encapsulation
Pennsylvania Geological Survey. Series M : Mineral Resources Report
Companion text: Detailed description of coal fields / James D. Sisler. Bituminous coal fields of Pennsylvania. Harrisburg: Pennsylvania Topographic and Geologic Survey. 1928. Bulletin. Series M : Mineral Resources Report. Bulletin M-6, pt.II, 1926. 511p. 17pls.
Another copy of map with source publication.
In English.
Keywords: Coal; Pennsylvania -- Maps; U.S.--PA; Maps