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1. Puerto Rico Administrative Boundaries Level 1, 2006

2006. ESRI. Puerto Rico Administrative Boundaries Level 1 is a polygon theme representing the boundaries for the first-level administrative units of Puerto Rico. ESRI.

2. Puerto Rico World Gazetteer Locations, 2006

2006. ESRI. Puerto Rico World Gazetteer Locations is a point theme representing the locations and proper names for map features in Puerto Rico. The gazetteer i... ESRI.

3. United States 111th Congressional District

2009. U.S. Census Bureau, Geography Division and Environmental Systems Research Institute (Redlands, Calif.). United States 111th Congressional Districts represents the political boundaries for the U.S. 111th congressional districts. The membership is curre... Esri.

4. United States 111th Congressional Districts, 2010

2009. Environmental Systems Research Institute (Redlands, Calif.). United States 111th Congressional Districts represents the political boundaries for the U.S. 111th congressional districts. The membership is curre... ESRI.

5. United States 112th Congressional Districts, 2012

2011. U.S. Census Bureau, Geography Division and Environmental Systems Research Institute (Redlands, Calif.). United States 112th Congressional Districts is a polygon theme representing the political boundaries for the U.S. 112th congressional districts. Th... Esri.

6. United States Afternoon Relative Humidity, 2012

2012. National Climatic Data Center (U.S.), United States. National Environmental Satellite, Data, and Information Service, United States. National Oceanic and Atmospheric Administration., and Digital Social Science Centaer, Columbia University Libraries. United States Afternoon Relative Humidity is a point theme representing the relative humidity as measured at weather stations throughout the United... Asheville, North Carloina.

7. United States Airports, 2010

2010. Tele Atlas North America, Inc. and ESRI. United States Airports is a polygon theme representing airport grounds and airport runways within the United States. All airports have a boundary, ... ESRI.

8. United States Airports, 2012

2011. TomTom North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). United States Airports is a polygon theme representing airport grounds and airport runways within the United States. All airports have a boundary, ... Esri.

9. United States Airports, 2012

2001. National Atlas of the United States and the United States Geological Survey and Environmental Systems Research Institute (Redlands, Calif.). United States Airports is a point theme representing airports in the United States, Puerto Rico, U.S. Virgin Islands, and U.S. Possessions with air... Esri.

10. United States Average Percent of Possible Sunshine, 2012

2012. National Climatic Data Center (U.S.), United States. National Environmental Satellite, Data, and Information Service, United States. National Oceanic and Atmospheric Administration., and Digital Social Science Centaer, Columbia University Libraries. United States Average Percent of Possible Sunshine is a point theme representing the the percent of possible sunshine as measured at weather statio... Asheville, North Carloina.

11. United States Average Snowfall, 2012

2012. National Climatic Data Center (U.S.), United States. National Environmental Satellite, Data, and Information Service, United States. National Oceanic and Atmospheric Administration., and Digital Social Science Centaer, Columbia University Libraries. United States Average Snowfall is a point theme representing average snowfall (including ice pellets and sleet) in inches as measured at weather st... Asheville, North Carloina.

12. United States Average Wind Speed, 2012

2012. National Climatic Data Center (U.S.), United States. National Environmental Satellite, Data, and Information Service, United States. National Oceanic and Atmospheric Administration., and Digital Social Science Centaer, Columbia University Libraries. United States Average Wind Speed is a point theme representing the average wind speed in miles per hour as measured at weather stations throughout ... Asheville, North Carloina.

13. United States Census Block Groups, 2012

2011. TomTom North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). United States Census Block Groups is a polygon theme representing the Census block groups of the United States. Attribute information includes a va... Esri.

14. United States Census Tracts, 2010

2010. Tele Atlas North America, Inc. and Economic and Social Research Institute (Reston, Va.). United States Census Tracts is a polygon theme representing the U.S. Census tracts of the United States in the 50 states, the District of Columbia,... ESRI.

15. United States Census Tracts, 2012

2011. TomTom North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). United States Census Tracts is a polygon theme representing the U.S. Census tracts of the United States in the 50 states, the District of Columbia,... Esri.

16. United States Cities and Towns, 2012

1972. National Atlas of the United States and the United States Geological Survey and Environmental Systems Research Institute (Redlands, Calif.). United States Cities and Towns is a point theme representing cities and towns in the United States. . Esri.

17. United States Cloudiness, Mean Number of Days (Clear, Partly Cloudy, Cloudy), 2012

2012. National Climatic Data Center (U.S.), United States. National Environmental Satellite, Data, and Information Service, United States. National Oceanic and Atmospheric Administration., and Digital Social Science Centaer, Columbia University Libraries. United States Cloudiness, Mean Number of Days (Clear, Partly Cloudy, Cloudy) is a point theme representing the mean number of cloudy days as measur... Asheville, North Carloina.

18. United States Counties, 2010

2010. Tele Atlas North America, Inc. and Economic and Social Research Institute (Reston, Va.). United States Counties is a polygon theme representing the counties of the United States in the 50 states, the District of Columbia, and Puerto Rico. ESRI.

19. United States Counties, 2012

2011. TomTom North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). United States Counties is a polygon theme representing the counties of the United States in the 50 states, the District of Columbia, and Puerto Rico. Esri.

20. United States County Boundaries, 2010

2010. Tele Atlas North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). United States County Boundaries is a line theme representing the boundary lines of the counties of the United States. ESRI.