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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 (192)
Subject
Nonmetallic Mineral Resources (43)
Stratigraphy (29)
Topography (28)
Miscellaneous (11)
Cities, Towns, and Buildings (10)
Structure-Folds (9)
Mineralogy (8)
Engineering Geology (7)
Surface Water (7)
Economic Uses (6)
Location Covered
Lancaster (192)
Original Format
Photographs (192)
Date
197 (5)
1922-06-04 (21)
1923-08-23 (11)
1925-04-14 (10)
1925-04-15 (10)
1968-01-01 (8)
1923-10-03 (6)
1971-01-01 (6)
1927-06-16 (4)
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Pennsylvania Geological Survey - Historical Photographs
192 items
192 items
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