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You searched for: Genre Aerial imagery Remove constraint Genre: Aerial imagery Time Period 1950-1999 Remove constraint Time Period: 1950-1999
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penn-state

1. Digital Orthophoto Quarter Quadrangle images for Pennsylvania

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 ...
chicago

2. Aerial Imagery: Cook County, Illinois, 1998

1998. Cook_County_GIS. Panchromatic aerial imagery flown in 1998 for Cook County, Illinois at 6 inch pixel resolution.To download, let your browser load blocked content. ...
purdue

4. DOQQ 1998: Indiana

1998. IndianaMap ArcGIS Online. 1998-99 Aerial Photos (USGS DOQQs), (1:12,000) - Shows the 1998-1999 Digital Orthophoto Quarter Quadrangle (DOQQ) imagery of Indiana, produced by ...
maryland

5. Orthophotography: Baltimore County, Maryland, 1998

1998. Baltimore County Web Map Portal. Orthophotography for Baltimore County from March/April 1998. This is not a complete data set and only covers the southern half of Baltimore County.
penn-state

6. Digital Orthophoto (DOQQ - quarter-quadrangle) for Delaware 1997

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 ...