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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. 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. 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.