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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 (142)
Subject
Structure-Folds (142)
Location Covered
Perry (28)
Mifflin (26)
Blair (10)
Lebanon (10)
Lancaster (9)
Northampton (9)
Cumberland (6)
Carbon (5)
Juniata (5)
Lycoming (5)
Original Format
Photographs (142)
Date
1921-08-16 (15)
1929-04-23 (9)
1929-08-02 (9)
1921-07-01 (8)
1931-10-01 (8)
1972-09-21 (6)
1921-01-01 (5)
1932-05-29 (5)
1933-09-01 (5)
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Pennsylvania Geological Survey - Historical Photographs
142 items
142 items
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