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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 (198)
Subject
Surface Water (198)
Engineering Geology (3)
State Parks (2)
Location Covered
Dauphin (29)
Luzerne (28)
Tioga (14)
Fayette (10)
Bradford (9)
Erie (9)
Somerset (9)
Jefferson (8)
Lancaster (7)
Bucks (6)
Original Format
Photographs (198)
Date
1930-07-18 (16)
1930-05-21 (8)
1931-10-01 (8)
1933-10-08 (6)
1934-07-01 (6)
1937-08-14 (6)
1931-08-01 (5)
1932-05-13 (5)
1935-07-06 (5)
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Pennsylvania Geological Survey - Historical Photographs
198 items
198 items
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