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U.S. Geological Survey
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Imagery and Base Maps
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Pennsylvania Spatial Data Access (PASDA)
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Pennsylvania, United States
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1. USGS Geopdfs for Pennsylvania 30 x 60 Minute
2011. U.S. Geological Survey. GeoPDF 30 x 60 Minute Quadrangle Map for Pennsylvania.
2. Historic topographic maps for Pennsylvania, Version 2 (Albers)
2006. U.S. Geological Survey. A newly revised version of the historic USGS 15 minute topographic maps for Pennsylvania as collected from the MapTech Historical Map Collection at...
3. Historic topographic maps for Pennsylvania
2005. U.S. Geological Survey. Historic USGS 15 minute topographic maps for Pennsylvania as collected from the MapTech Historical Map Collection at 'http://historical.maptech.com...
4. National Land Cover Database 2001 - Tree Canopy Layer - Western Pennsylvania and Ohio
2004. U.S. Geological Survey. The National Land Cover Database 2001 tree canopy layer for mapping zone 47 was produced through a cooperative project conducted by the Multi-Resol...
5. National Land Cover Database 2001 - Tree Canopy Layer - Pennsylvania and Northeast
2003. U.S. Geological Survey. The National Land Cover Database 2001 tree canopy layer for mapping zone 60 was produced through a cooperative project conducted by the Multi-Resol...
6. National Land Cover Database 2001 - Imperviousness Layer - Pennsylvania and Northeast
2003. U.S. Geological Survey. The National Land Cover Database 2001 for mapping zone 60 was produced through a cooperative project conducted by the Multi-Resolution Land Charact...
7. National Land Cover Database 2001 - Imperviousness Layer - Western Pennsylvania and Ohio
2003. U.S. Geological Survey. The National Land Cover Database 2001 for mapping zone 47 was produced through a cooperative project conducted by the Multi-Resolution Land Charact...
8. National Land Cover Database 2001 - Land Cover Layer - Pennsylvania and Northeast
2003. U.S. Geological Survey. The National Land Cover Database 2001 land cover layer for mapping zone 60 was produced through a cooperative project conducted by the Multi-Resolu...
9. National Land Cover Database 2001 - Land Cover Layer - Western Pennsylvania and Ohio
2003. U.S. Geological Survey. The National Land Cover Database 2001 land cover layer for mapping zone 47 was produced through a cooperative project conducted by the Multi-Resolu...
10. Topographic Maps (DRG) for Pennsylvania 1:24,000 - Albers - cropped collars
1996. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map with cropped collars in Albers projection.