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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 (200)
Subject
Mineral Resources-Coal (57)
Nonmetallic Mineral Resources (31)
Rivers and Streams (20)
Interstate Highway (18)
Stratigraphy (15)
Miscellaneous (14)
Economic Uses (8)
Geomorphology (8)
Cities, Towns, and Buildings (6)
Sedimentation (6)
Location Covered
Clearfield (200)
Original Format
Photographs (200)
Date
1941-09-01 (18)
1972-11-09 (12)
1960-01-01 (10)
1946-05-14 (9)
1940-10-17 (8)
1924-10-19 (7)
1934-01-01 (7)
1940-10-19 (6)
1942-08-01 (6)
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Pennsylvania Geological Survey - Historical Photographs
200 items
200 items
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