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You searched for: Time Period 1950-1999 Remove constraint Time Period: 1950-1999
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michigan-state

2. Allegan County GIS Data Library

Allegan County Land Information Services. The GIS Data Library page on the Allegan County, Michigan website provides links for zipped shapefile downloads. Common resource topics are covered...
maryland

3. Alleys: Washington, D.C., 1999

1999. City of Washington, DC. Alley centerlines captured in 1999. Contract NCPC 93-02. This document describes the planimetric map production for the 350 tiles located in Washin...
minnesota

7. Bedrock geologic map of northwestern Minnesota, M-92

1999. Jirsa, Mark A., Chandler, Val W., and Runkel, Anthony C. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of northwestern Minnesota, scale 1:200,...
maryland

16. Bridges and Tunnels: Washington, D.C., 1999

1999. City of Washington, DC. Hidden bridges and tunnels captured in 1999. This is a new dataset that was not collected as part of the planimetric mapping project. It shows brid...
maryland

17. Building Footprints: Washington, D.C., 1999

1999. City of Washington, DC. Buildings captured in 1999. Contract NCPC 93-02. This document describes the planimetric map production for the 350 tiles located in Washington DC ...
maryland

18. Building Heights: Washington, D.C., 1999

1999. City of Washington, DC. Rooftop elevation captured in 1999. Contract NCPC 93-02. This document describes the planimetric map production for the 350 tiles located in Washin...
maryland

19. Curbs: Washington, D.C., 1999

1999. City of Washington, DC. Curbs captured in 1999. This dataset was collected as part of the planimetric mapping project. Hidden features were added as enhancements to this d...
penn-state

20. 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 ...