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1. Administrative Boundaries of National Park System Units, 2011

2011. United States. Bureau of Transportation Statistics. This polygon shapefile depicts service wide boundary set for display and general analysis purposes. This layer is part of the 2014 National Transpo... United States. Bureau of Transportation Statistics.

2. Administrative County Boundaries: United States and Territories, 2011

2011. United States. Bureau of the Census. Geography Division and United States. Bureau of Transportation Statistics. This polygon shapefile contains United States administrative county boundaries extracted from the U.S. Census Bureau's MAF/TIGER Database (MTDB). T... United States. Bureau of Transportation Statistics.

3. Hydrographic Features (Polygons): United States and Territories, 2011

2011. United States. Bureau of the Census. Geography Division and United States. Bureau of Transportation Statistics. This polygon shapefile depicts hydrography coverages that were created using TIGER/Line 2000 shapefile data gathered from ESRI's Geography Network.... United States. Bureau of Transportation Statistics.

4. Metropolitan Planning Boundaries: United States and Territories, 2011

2011. United States. Federal Highway Administration and United States. Bureau of Transportation Statistics. This polygon shapefile contains United States metropolitan planning boundaries. The United States Metropolitan Planning Organization (MPO) Database... United States. Bureau of Transportation Statistics.

5. Military Installations: United States and Territories, 2011

2011. United States. Office of the Deputy Under Secretary of Defense (Installations and Environment) and United States. Bureau of Transportation Statistics. This polygon shapefile depicts sites that were selected from the 2010 Base Structure Report (BSR), a summary of the DoD Real Property Inventory (RP... United States. Bureau of Transportation Statistics.

6. U.S. Census Tracts, 2013

2011. TomTom North America, Inc. U.S. Census Tracts represents the U.S. Census tracts of the United States in the 50 states, the District of Columbia, and Puerto Rico.

7. U.S. Counties, 2013

2011. TomTom North America, Inc. U.S. Counties represents the counties of the United States in the 50 states, the District of Columbia, and Puerto Rico.

8. U.S. States, 2013

2011. TomTom North America, Inc. U.S. States represents the 50 states, the District of Columbia, and Puerto Rico of the United States.

9. ZIP Code Boundaries, United States (Q3 2011)

2011. TTG, Inc. This polygon shapefile contains zip code boundaries for the United States. Data are valid from July to September, 2011. Attributes included in the ... TTG, Inc.

10. ZIP Code Boundaries, United States (Q4 2011)

2011. TTG, Inc. This polygon shapefile contains zip code boundaries for the United States. Data are valid from October to December, 2011. Attributes included in th... TTG, Inc.