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Map of the Georges Creek Coal Basin Showing the Location of Mining Properties and the Areal Extent of the Pittsburg (Big Vein) and Lower Coals
(Baltimore: Maryland Geological Survey, 1903)
Scale 1:62,500. Map is from Maryland Geological Survey, 1903; Volume 5, Plate 32. Size of original printed map height 9.25 inches, width 22.5 inches.