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2. 106th Congressional District Boundaries

Polygon Harvard University Public content
1999. Bureau of Transportation Statistics, (comp.). The 106th Congressional District Boundaries data set contains geographic information for the political entities of the Congressional districts of t... Bureau of Transportation Statistics.

4. 90-Meter Bathymetric Grid, New England, 1999

Raster Stanford University Public content
1999. National Geophysical Data Center, United States. Department of Commerce, United States. National Oceanic and Atmospheric Administration, and United States. National Environmental Satellite, Data, and Information Service. This raster dataset provides bathymetry information at a resolution of 90 meters for New England- from coastal regions to the edge of the continent... National Geophysical Data Center.

5. Alabama Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Alabama Block Groups represents the U.S. Census block groups of Alabama. Environmental Systems Research Institute, Inc. (ESRI).

6. Alabama Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Alabama Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Alabama. Environmental Systems Research Institute, Inc. (ESRI).

7. Alabama Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Alabama Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Alabama. Environmental Systems Research Institute, Inc. (ESRI).

8. Alabama Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Alabama Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Alabama. Environmental Systems Research Institute, Inc. (ESRI).

9. Alabama ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Alabama ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a ... Environmental Systems Research Institute, Inc. (ESRI).

10. Alaska Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Alaska Block Groups represents the U.S. Census block groups of Alaska. Environmental Systems Research Institute, Inc. (ESRI).

11. Alaska Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Alaska Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Alaska. Environmental Systems Research Institute, Inc. (ESRI).

12. Alaska Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Alaska Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Alaska. Environmental Systems Research Institute, Inc. (ESRI).

13. Alaska Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Alaska Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Alaska. Environmental Systems Research Institute, Inc. (ESRI).

14. Alaska ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Alaska ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a f... Environmental Systems Research Institute, Inc. (ESRI).

15. Aquin, 1999 (Scanned Map)

Raster Columbia University Restricted content
1999. United States. Defense Mapping Agency and East View Cartographic, Inc. Aquin is a scanned, georeferenced map of the city of Aquin, Haiti at a scale of 1:10,000. Defense Mapping Agency Hydrographic/Topographic Center,.

16. Arctic Ice Chart, April 12, 1999

Polygon Stanford University Public content
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 12, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

17. Arctic Ice Chart, April 13, 1999

Polygon Stanford University Public content
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 13, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

18. Arctic Ice Chart, April 14, 1999

Polygon Stanford University Public content
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 14, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

19. Arctic Ice Chart, April 15, 1999

Polygon Stanford University Public content
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 15, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

20. Arctic Ice Chart, April 16, 1999

Polygon Stanford University Public content
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 16, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).