topic

• Geology8
• Anthracite coal mines and mining5
• Geological surveys3
• Anthracite coal2
• Anthracite coal industry2
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name

• Geological Survey of Pennsylvania12
• Lesley, J. P. (J. Peter), 1819-190312
• Ashburner, Charles A. (Charles Albert), 1854-18899
• Julius Bien & Co7
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collection

• Maps of North America12

place

• Pennsylvania12
• Schuylkill County6
• Carbon County5
• Schuylkill County (Pa.)4
• Carbon County (Pa.)3
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genre

• Maps12
• Geological cross-sections5
• Geological maps3
• Charts2
• Diagrams2
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publisher

division

• Map Division12

type

• cartographic12