topic

• Geology11
• Hydrology5
• Coal4
• Coal mines and mining4
• Lakes4
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name

• Birge, E. A. (Edward Asahel), 1851-19505
• Wisconsin Geological and Natural History Survey5
• Hart, Lane S4
• Smith, Leonard S. (Leonard Sewall), 1864-19474
• Ashburner, Charles A. (Charles Albert), 1854-18893
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collection

• Maps of North America29
• Atlases, gazetteers, guidebooks and other books2
• Maps of New York City and State1

place

• Michigan6
• Wisconsin6
• Pennsylvania5
• Ohio4
• United States4
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genre

• Maps30
• Geological cross-sections12
• Charts7
• Bathymetric maps5
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publisher

• Wisconsin Geological and Natural History Survey5
• Geological Survey of Pennsylvania2
• publisher not identified2
• Benjamin Smith Lyman?1
• Board of Commissioners for the Second Geological Survey1
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division

type

• cartographic30
• still image13
• text1