www.pasda.psu.edu - /download/era1950/
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2/14/2020 11:01 AM <dir> allegheny_1949
2/14/2020 11:01 AM <dir> berks_1946
2/14/2020 11:01 AM <dir> blair_1951
2/14/2020 11:01 AM <dir> bucks_1946
2/14/2020 11:01 AM <dir> butler_1951
2/14/2020 11:01 AM <dir> chester_1947
2/14/2020 11:01 AM <dir> clearfield_1951
2/14/2020 11:01 AM <dir> columbia_1950
2/14/2020 11:01 AM <dir> erie_1950
2/14/2020 11:01 AM <dir> fayette_1951
2/14/2020 11:01 AM <dir> franklin_1949
2/14/2020 11:01 AM <dir> indiana_1949
2/14/2020 11:01 AM <dir> jefferson_1951
2/14/2020 11:01 AM <dir> lycoming_1951
2/14/2020 11:01 AM <dir> montgomery_1952
2/14/2020 11:01 AM <dir> montour_1950
1/24/2020 4:33 PM 1378939 PennPilot1947to1952Centerpoints.shp.zip
1/24/2020 4:33 PM 2057157 PennPilot1947to1952Footprints_metadata.zip
6/29/2021 7:25 PM <dir> PennPilot1950s
2/14/2020 11:01 AM <dir> perry_1949
2/14/2020 11:01 AM <dir> snyder_1949
2/14/2020 11:01 AM <dir> somerset_1951
2/14/2020 11:01 AM <dir> tioga_1952
2/14/2020 11:01 AM <dir> venango_1950
2/14/2020 11:01 AM <dir> warren_1950
2/14/2020 11:01 AM <dir> wyoming_1949