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You searched for: Resource Type Raster data Remove constraint Resource Type: Raster data Time Period 1950-1999 Remove constraint Time Period: 1950-1999

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3.

Aerial Photography Counties: Iowa, 1950s Datasets datasets university-of-iowa

1950. Iowa Department of Natural Resources. 1950s Aerial Photography of Iowa County dataset in a zipped file. State of Iowa.

4.

Aerial Photography Counties: Iowa, 1960s Datasets datasets university-of-iowa

1960. Iowa Department of Natural Resources. 1960s Aerial Photography of Iowa County Dataset in a zipped file. State of Iowa.

5.

Aerial Photography Counties: Iowa, 1970s Datasets datasets university-of-iowa

1970. Iowa Department of Natural Resources. 1970s Aerial Photography of Iowa Each zip file contains a county raster dataset. State of Iowa.

8.
Datasets datasets

Chesapeake Bay Watershed Land Cover Data Series 1984 Datasets datasets pennsylvania-state-university

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... State of Pennsylvania.

9.
Datasets datasets

Chesapeake Bay Watershed Land Cover Data Series 1992 Datasets datasets pennsylvania-state-university

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... State of Pennsylvania.

10.

CIR Aerial Photography Counties: Iowa, 1980s Datasets datasets university-of-iowa

1980. Iowa Department of Natural Resources. 1980s Color-Infra-Red Aerial Photography of Iowa Each zip file contains a County-wide dataset. State of Iowa.

11.
Datasets datasets

DEM (30m), Wisconsin 1998 Datasets datasets university-of-wisconsin-madison

1998. This Grid-format Digital Elevation Model (DEM) is a raster representation of land elevation of Wisconsin. This DEM ('demgw930') is derived from the...

12.
Datasets datasets

Digital Elevation Model - 10-Meter: Pennsylvania Datasets datasets pennsylvania-state-university

1996. United States Geological Survey (USGS). Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard... State of Pennsylvania.

13.
Datasets datasets

Digital Elevation Model - 30-Meter: Pennsylvania Datasets datasets pennsylvania-state-university

1996. United States Geological Survey (USGS). Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard... State of Pennsylvania.

14.

Digital Elevation Model (DEM) at 1:250,000 [Illinois] Datasets datasets university-of-illinois-urbana-champaign

1995. Abert, Curtis C. A digital elevation model (DEM) in ArcINfo grid format. Data were assembled to provide a statewide database of surface elevation points suitable fo... Illinois State Geological Survey.

15.
Imagery imagery

Digital Orthophoto (DOQQ - quarter-quadrangle) for Delaware 1992 Imagery imagery pennsylvania-state-university

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 ... State of Pennsylvania.

16.
Imagery imagery

Digital Orthophoto (DOQQ - quarter-quadrangle) for Delaware 1997 Imagery imagery pennsylvania-state-university

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 ... State of Pennsylvania.

17.
Imagery imagery

Digital Orthophoto (DOQQ - quarter-quadrangle) for West Virginia 1997 Imagery imagery pennsylvania-state-university

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 ... State of Pennsylvania.

18.

Digital Orthophoto Quadrangle (DOQ) Data [Illinois] (1998 - 2001) university-of-illinois-urbana-champaign

1998. U.S. Geological Survey. Illinois National Aerial Photography Program (NAPP) Digital Orthophotography quarter Quadrangle (DOQ) data have been created for 102 counties in th... Illinois State Geological Survey.

19.
Imagery imagery

Digital Orthophoto Quarter Quadrangle images for Pennsylvania Imagery imagery pennsylvania-state-university

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 ... State of Pennsylvania.

20.
Imagery imagery

Digital Orthophoto Quarter Quadrangle images for Pennsylvania Imagery imagery pennsylvania-state-university

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 ... State of Pennsylvania.