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1. 1:100,000 Digital Raster Graphics for Delaware
2000. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...
2. 1:100,000 Digital Raster Graphics for Maryland
2000. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...
3. 1:100,000 Digital Raster Graphics for Virginia
2000. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...
4. 1:100,000 Digital Raster Graphics for West Virginia
2000. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...
5. 1:24,000 - 7.5 minute digital elevation models (DEM) for the District of Columbia (30 meter)
2000. U.S. Geological Survey. Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard...
6. 1:24,000 - 7.5 minute digital elevation models (DEM) for Virginia (30 meter)
2000. U.S. Geological Survey. Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard...
7. 1:24,000 - 7.5 minute Digital Raster Graphics for Maryland
2000. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...
8. 1:24,000 - 7.5 minute Digital Raster Graphics for New Jersey
2000. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...
9. 1:24,000 - 7.5 minute Digital Raster Graphics for the District of Columbia
2000. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...
10. 1:24,000 - 7.5 minute Digital Raster Graphics for West Virginia
2000. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...
11. 1:24,000 -7.5 minute digital elevation models (DEM) for West Virginia (30 meter)
2000. U.S. Geological Survey. Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard...
12. 1:250,000 Digital Raster Graphics for Delaware
2000. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...
13. 1:250,000 Digital Raster Graphics for Maryland
2000. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...
14. 1:250,000 Digital Raster Graphics for Virginia
2000. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...
15. 1:250,000 Digital Raster Graphics for West Virginia
2000. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...
16. Aerial Photography 2000 - Tile Index: Philadephia, Pennsylvania
2000. Philadelphia aerial photography.
17. Aerial Photography 2000: Philadephia, Pennsylvania
2000. Philadelphia aerial photography.
18. Allegheny National Forest Contour - 20ft: Pennsylvania
2000. This dataset displays contour lines covering the Allegheny National Forest (ANF) and surrounding area at 20 foot intervals. Each contour is a line ...
19. Allegheny National Forest Contour 100ft: Pennsylvania
2000. This dataset displays contour lines covering the Allegheny National Forest (ANF) and surrounding area at 100 foot intervals. Each contour is a lin...
20. Average Annual Precipitation (PRISM model) 1961 - 1990: Pennsylvania
2000. George Taylor, the Oregon Climate Service at Oregon State University Chris Daly, Spatial Climate Analysis Service. This map layer shows polygons of average annual precipitation in the contiguous United States, for the climatological period 1961-1990. Parameter-e...
21. Census Tracts: Philadephia, Pennsylvania
2000. Philadelphia City Planning Commission (PCPC) Department - GIS Division. Census bureau statistical units. Most commonly used statistical unit. This version, released January 2004 contains a fix, replacing tract 172 which...
22. Chesapeake Bay Watershed land use/land cover v105
2000. University of Maryland Regional Earth Science Applications Center (RESAC). A land cover map of the Chesapeake Bay Watershed plus the non-watershed components of counties that intersect the Watershed. The map has 17 cover c...
23. Council Districts: Philadephia, Pennsylvania
2000. Philadelphia City Planning Commission. District Boundaries of Municipal Legislators.
24. Cultural Assessment of the Chesapeake Bay Watershed
2000. Multiple TIFF and layer files pertaining to Cultural Assessment of the Chesapeake Bay watershed Growth and development not only threaten lands of h...
25. Delaware Water Gap Color Infra-Red Photos: Pennsylvania
2000. US Geological Survey (USGS). arieal photography of the Delaware Water Gap including the surrounding watersheds and tributaries.
26. Delaware Water Gap Landuse: Pennsylvania
2000. US Geological Survey (USGS). Landuse for the Delaware Water Gap and Surrounding watersheds and tributaries.
27. Digital Orthophoto (DOQQ - quarter-quadrangle) for Virginia
2000. U.S. Geologic Survey; Pennsylvania Bureau of Topographic and Geologic Survey. Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophotoquad (DOQ) is a ...
28. Fault Lines - Topographic Change in Philadelphia, During the Last Century: Pennsylvania
2000. United States Geological Survey. A scope of work was developed in response to a request by the U. S. Army Corps of Engineers, Philadelphia District. The request was to perform a to...
29. Floodplain: Allegheny County, Pennsylvania
2000. Allegheny County Division of Computer Services Geographic Information Systems Group. In an effort to expedite the permit review process for Water Obstruction and Encroachment Applications, the Pennsylvania Department of Environmenta...
30. Forest Economic Model - Resource Lands Assessment for the Chesapeake Bay Watershed
2000. Chesapeake Bay Program. Multiple TIFF and layer files pertaining to forest economics of the Chesapeake Bay watershed. The objective of this analysis was to identify forest...
31. Fractional Vegetation Cover for Northeast Pennsylvania, 2000
2000. Dr. Toby Carlson, Penn State University. Fractional vegetation cover for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. Values range f...
32. Fractional Vegetation Cover for Northwest Pennsylvania, 2000
2000. Dr. Toby Carlson, Penn State University. Fractional vegetation cover for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. Values range f...
33. Fractional Vegetation Cover for Southeast Pennsylvania, 2000
2000. Dr. Toby Carlson, Penn State University. Fractional vegetation cover for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. Values range f...
34. Fractional Vegetation Cover for Southwest Pennsylvania, 2000
2000. Dr. Toby Carlson, Penn State University. Fractional vegetation cover for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. Values range f...
35. Gap Analysis Program, Avian Habitat Models -30Meter: Pennsylvania
2000. Wayne L. Myers, Joseph A. Bishop. These layers represent potential habitat models for bird species in Pennsylvania. The model associates occurrence of suitable habitat with key envi...
36. Gap Analysis Program, Avian Habitat Models -90Meter: Pennsylvania
2000. Wayne L. Myers, Joseph A. Bishop. These layers represent potential habitat models for bird species in Pennsylvania. The model associates occurrence of suitable habitat with key envi...
37. Gap Analysis Program, Fish Habitat Models -90Meter: Pennsylvania
2000. Wayne L. Myers, Joseph A. Bishop. These layers represent potential habitat models for fish species in Pennsylvania. The model associates occurrence of suitable habitat with key envi...
38. Gap Analysis Program, Herpetilie Habitat Models -30Meter: Pennsylvania
2000. Wayne L. Myers, Joseph A. Bishop. These layers represent potential habitat models reptile species in Pennsylvania. The model associates occurrence of suitable habitat with key envir...
39. Gap Analysis Program, Herpetilie Habitat Models -90Meter: Pennsylvania
2000. Wayne L. Myers, Joseph A. Bishop. These layers represent potential habitat models for reptile species in Pennsylvania. The model associates occurrence of suitable habitat with key e...
40. Gap Analysis Program, Mammal Habitat Models -30Meter: Pennsylvania
2000. Wayne L. Myers, Joseph A. Bishop. These layers represent potential habitat models mammal species in Pennsylvania. The model associates occurrence of suitable habitat with key enviro...
41. Gap Analysis Program, Mammal Habitat Models -90Meter: Pennsylvania
2000. Wayne L. Myers, Joseph A. Bishop. These layers represent potential habitat models for mammal species in Pennsylvania. The model associates occurrence of suitable habitat with key en...
42. Geologic map - Topographic Change in Philadelphia, During the Last Century
2000. United States Geological Survey. A scope of work was developed in response to a request by the U. S. Army Corps of Engineers, Philadelphia District. The request was to perform a to...
43. Impervious surface area for Northeast Pennsylvania, 2000
2000. Toby Carlson, Penn State University. Impervious surface area for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. The Value attribut...
44. Impervious surface area for Northwest Pennsylvania, 2000
2000. Toby Carlson, Penn State University. Impervious surface area for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. The Value attribut...
45. Impervious surface area for Southeast Pennsylvania, 2000
2000. Toby Carlson, Penn State University. Impervious surface area for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. The Value attribut...
46. Impervious surface area for Southwest Pennsylvania
2000. Toby Carlson, Penn State University. Impervious surface area for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. The Value attribut...
47. Index: Allegheny County, Pennsylvania
2000. Allegheny County Division of Computer Services Geographic Information Systems Group. Derived from original MAPINDX: Map Index Sheets from Block and Lot Grid of Property Assessment and based on aerial photography, showing 1983 datum ...
48. Land Cover, 2000: Pennsylvania
2000. The Pennsylvania State University. PALULC2000 is a statewide land cover map generated from Enhanced Thematic Mapper satellite data and three other ancillary data sources. It is an up...
49. Landscape Ecological Assessment of the Chesapeake Bay Watershed
2000. Chesapeake Bay Program. Multiple TIFF and layer files pertaining to Landscape ecological assessment of the Chesapeake Bay watershed. The Chesapeake Bay Watershed, located ...
50. Municipal Legislative Boundaries: Philadephia, Pennsylvania
2000. City Planning Commission (PCPC) Department - GIS Division. District boundaries of municipal legislators within the city of Philadelphia.