topic

• Geology9
• Anthracite coal mines and mining5
• Geological surveys3
• Anthracite coal2
• Anthracite coal industry2
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name

• Geological Survey of Pennsylvania13
• Lesley, J. P. (J. Peter), 1819-190313
• Hart, Lane S12
• Ashburner, Charles A. (Charles Albert), 1854-18899
• Julius Bien & Co8
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collection

• Maps of North America13

place

• Pennsylvania13
• Schuylkill County6
• Carbon County5
• Schuylkill County (Pa.)4
• Carbon County (Pa.)3
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genre

• Maps13
• Geological cross-sections5
• Geological maps4
• Charts2
• Diagrams2
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publisher

division

• Map Division13

type

• cartographic13