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TitleHistoric topographic maps for Pennsylvania
Date2005
AbstractHistoric USGS 15 minute topographic maps for Pennsylvania as collected from the MapTech Historical Map Collection at '. Scanned map images from MapTech were downloaded, assembled, and registered and rectified via Arc/Info to the UTM Zone 17/18 NAD83 projection.
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Data DOIn/a

Researchers

U S Geological Survey

Data Access
Formats
GIS (Shapefile)