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1.
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Public Buildings: Allegheny County, Pennsylvania

2002. Allegheny County Division of Computer Services Geographic Information Systems Group. Point locations of county and municipal buildings, halls, public works sites, government buildings.

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Cemeteries: Allegheny County, Pennsylvania

2002. Allegheny County Division of Computer Services Geographic Information Systems Group. Outlines of public and private cemeteries greater than one acre in size. Areas were delineated following a generalized line along the outside edge ...

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National Flood Hazard Layer: Carbon County, Pennsylvania

2002. Federal Emergency Management Agency. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...

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National Flood Hazard Layer: Pike County, Pennsylvania

2000. Federal Emergency Management Agency. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...

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Chesapeake Bay Watershed Land Cover Data Series 2001

2001. United States Geological Survey (USGS). To better understand how the land is changing and to relate those changes to water quality trends, the USGS funded the production of a Chesapeake B...

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1:100,000 Digital Raster Graphics for Delaware

2000. United States Geological Survey (USGS). A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...

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1:100,000 Digital Raster Graphics for Maryland

2000. United States Geological Survey (USGS). A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...

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1:100,000 Digital Raster Graphics for Virginia

2000. United States Geological Survey (USGS). A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...

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1:100,000 Digital Raster Graphics for West Virginia

2000. United States Geological Survey (USGS). A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...

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1:250,000 Digital Raster Graphics for Delaware

2000. United States Geological Survey (USGS). A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...

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1:250,000 Digital Raster Graphics for Maryland

2000. United States Geological Survey (USGS). A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...