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Pennsylvania Geological Survey - Historical Photographs - Browse all items - Pennsylvania Photos and Documents
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Contributing Institution
Pennsylvania Geological Survey (79)
Subject
Sinkholes (28)
Structure (15)
Engineering Geology (7)
Multiple Land Use (7)
State Parks (7)
Sanitary Landfills (5)
Interstate Highway (4)
Environmental Geology (3)
Stratigraphy (3)
Topography (1)
Location Covered
Dauphin (44)
Lebanon (12)
Luzerne (7)
Lancaster (6)
Schuylkill (3)
Perry (2)
Berks (1)
Carbon (1)
Chester (1)
Original Format
Photographs (79)
Date
1971-01-01 (79)
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Pennsylvania Geological Survey - Historical Photographs
79 items
79 items
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