topic

• Geology14
• Anthracite coal mines and mining5
• Coal4
• Coal mines and mining3
• Geological surveys3
• More Less

name

• Geological Survey of Pennsylvania20
• Lesley, J. P. (J. Peter), 1819-190320
• Ashburner, Charles A. (Charles Albert), 1854-188911
• Julius Bien & Co9
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collection

• Maps of North America22

place

• Pennsylvania22
• Schuylkill County6
• Carbon County5
• Schuylkill County (Pa.)4
• Carbon County (Pa.)3
• More Less

genre

• Maps22
• Geological maps7
• Geological cross-sections6
• Charts4
• Diagrams4
• More Less

publisher

• Geological Survey of Pennsylvania12
• Second Geological Survey of Pennsylvania7
• Board of Commissioners for the Second Geological Survey2
• Geological Survey of Pennsylvania?1

division

type

• cartographic22