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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 (913)
Subject
Nonmetallic Mineral Resources (913)
Miscellaneous (1)
Location Covered
Northampton (88)
Dauphin (51)
Lancaster (43)
Chester (36)
York (35)
Clearfield (31)
Huntingdon (30)
Greene (27)
Allegheny (26)
Montgomery (25)
Original Format
Photographs (912)
Photocopies (1)
Date
1924-08-01 (23)
1924-08-18 (15)
1922-08-05 (13)
1925-06-19 (13)
1920-01-01 (12)
1925-09-19 (12)
1923-07-18 (11)
1923-08-23 (11)
1921-07-01 (10)
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Pennsylvania Geological Survey - Historical Photographs
913 items
913 items
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