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Imagery and Base Maps
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Pennsylvania, United States
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11. Spot Elevation: Allegheny County, Pennsylvania
2006. Allegheny County Division of Computer Services Geographic Information Systems Group. Spot Elevation data was created as a result of a county flyover in the spring of 2004. They were created from a DTM Feature Dataset, upgraded by Ba...
12. Urban Ecosystem Analysis Ikonos interpreted land cover for the Cobbs/Mill Creek and Tacony/Frankford Creek watersheds
2002. American Forests. AMERICAN FORESTS conducted an urban ecosystem analysis of the Delaware Valley region to provide community leaders with detailed information about t...
13. USGS Geopdfs for Pennsylvania 30 x 60 Minute
2011. U.S. Geological Survey. GeoPDF 30 x 60 Minute Quadrangle Map for Pennsylvania.