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You searched for: Subject Imagery and Base Maps Remove constraint Subject: Imagery and Base Maps Institution Penn State Remove constraint Institution: Penn State Time Period 1950-1999 Remove constraint Time Period: 1950-1999
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4.
Raster

Chesapeake Bay Watershed Land Cover Data Series 1984 penn-state

1984. 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...

5.
Raster

Chesapeake Bay Watershed Land Cover Data Series 1992 penn-state

1992. 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...

6.
Raster

Digital Orthophoto (DOQQ - quarter-quadrangle) for Delaware 1992 penn-state

1992. United States Geologic Survey (USGS) and 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 ...

7.
Raster

Digital Orthophoto (DOQQ - quarter-quadrangle) for Delaware 1997 penn-state

1997. United States Geologic Survey (USGS) and 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 ...

8.
Raster

Digital Orthophoto (DOQQ - quarter-quadrangle) for West Virginia 1997 penn-state

1997. United States Geologic Survey (USGS) and 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 ...

9.
Raster

Digital Orthophoto Quarter Quadrangle images for Pennsylvania penn-state

1999. United States Geologic Survey (USGS) and 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 ...

10.
Raster

Digital Orthophoto Quarter Quadrangle images for Pennsylvania penn-state

1993. United States Geologic Survey (USGS) and 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 ...

16.
Vector

PA Explorer: Terrabyte Image: Pennsylvania penn-state

1998. Wayne Myers. The Terrabyte images are extractives from Landsat Thematic Mapper images through the SpectraPlex process. This process does not permit the full res...

19.
Raster

Topographic Maps (DRG) for Pennsylvania 1:24,000 - UTM penn-state

1996. 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...