topic

• Geology9
• Anthracite coal mines and mining4
• Geological surveys3
• Coal mines and mining1
• Iron1
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name

• Geological Survey of Pennsylvania10
• Lesley, J. P. (J. Peter), 1819-190310
• Hart, Lane S9
• Ashburner, Charles A. (Charles Albert), 1854-18896
• Hill, Frank A5
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collection

• Maps of North America10

place

• Pennsylvania10
• Schuylkill County5
• Carbon County4
• Schuylkill County (Pa.)3
• Carbon County (Pa.)2
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genre

• Maps10
• Geological cross-sections5
• Geological maps4
• Charts2
• Diagrams2
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publisher

division

• Map Division10

type

• cartographic10