U.S. Department of Commerce, U.S. Census Bureau, Geography Division/Cartographic Products Branch 201404 vector digital data Cartographic Boundary Files 2013 http://www2.census.gov/geo/tiger/GENZ2013/BG/cb_2013_02_bg_500k.zip The 2013 cartographic boundary shapefiles are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). These boundary files are specifically designed for small-scale thematic mapping. When possible generalization is performed with the intent to maintain the hierarchical relationships among geographies and to maintain the alignment of geographies within a file set for a given year. Geographic areas may not align with the same areas from another year. Some geographies are available as nation-based shapefiles while others are available only as state-based files. These files were specifically created to support small-scale thematic mapping. To improve the appearance of shapes at small scales, areas are represented with fewer vertices than detailed TIGER/Line Shapefiles. Cartographic boundary files take up less disk space than their ungeneralized counterparts. Cartographic boundary files take less time to render on screen than TIGER/Line Shapefiles. You can join this shapefile with table data downloaded from American FactFinder by using the AFFGEOID field in the cartographic boundary file. If detailed boundaries are required, please use the TIGER/Line Shapefiles instead of the generalized cartographic boundary files. Alaska 201404 201404 publication date Complete None planned. No changes or updates will be made to this version of the cartographic boundary files. New versions of the cartographic boundary files will be produced on an annual release schedule. Types of geography released may vary from year to year. -179.231086 179.859681 71.441059 51.175092 None 2013 Cartographic Boundary Generalized Shapefile State County Census Tract Block Group INCITS 38:2009 Alaska AK Boundaries boundaries None The intended display scale for this file is 1:500,000. This file should not be displayed at scales larger than 1:500,000. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The boundary information is for visual display at appropriate small scales only. Cartographic boundary files should not be used for geographic analysis including area or perimeter calculation. Files should not be used for geocoding addresses. Files should not be used for determining precise geographic area relationships. Yes, the data are free from Title 13 restrictions. U.S. Department of Commerce, U.S. Census Bureau, Geography Division mailing

4600 Silver Hill Road

Washington DC 20233-7400 United States 301.763.1128 301.763.4710 geo.geography@census.gov 8859part1 eng Accurate against American National Standards Institute (ANSI) Publication INCITS 446-2008 (Geographic Names Information System (GNIS)) at the 100% level for the codes and base names present in the file. The remaining attribute information has been examined but has not been fully tested for accuracy. The Census Bureau performed automated tests to ensure logical consistency of the source database. Segments making up the outer and inner boundaries of a polygon tie end-to-end to completely enclose the area. All polygons were tested for closure. The Census Bureau uses its internally developed geographic update system to enhance and modify spatial and attribute data in the Census MAF/TIGER database. Standard geographic codes, such as FIPS codes for states, counties, municipalities, county subdivisions, places, American Indian/Alaska Native/Native Hawaiian areas, and congressional districts are used when encoding spatial entities. The Census Bureau performed spatial data tests for logical consistency of the codes during the compilation of the original Census MAF/TIGER database files. Feature attribute information has been examined but has not been fully tested for consistency. For the cartographic boundary shapefiles, the Point and Vector Object Count for the G-polygon SDTS Point and Vector Object Type reflects the number of records in the shapefile attribute table. For multi-polygon features, only one attribute record exists for each multi-polygon rather than one attribute record per individual G-polygon component of the multi-polygon feature. TIGER/Line Shapefile multi-polygons are an exception to the G-polygon object type classification. Therefore, when multi-polygons exist in a shapefile, the object count will be less than the actual number of G-polygons. The cartographic boundary files are generalized representations of extracts taken from the MAF/TIGER Database. Generalized boundary files are clipped to a simplified version of the U.S. outline. As a result, some off-shore areas may be excluded from the generalized files. Some small holes or discontiguous parts of areas are not included in generalized files. Data are not accurate. Data are generalized representations of geographic boundaries at 1:500,000. U.S. Department of Commerce, U.S. Census Bureau, Geography Division unpublished material Geo-spatial Relational Database 20130101 20130101 The dates describe the effective date of 2013 cartographic boundaries. MAF/TIGER All spatial and feature data Spatial data were extracted from the MAF/TIGER database and processed through a U.S. Census Bureau batch generalization system. MAF/TIGER 201404 INCITS (formerly FIPS) codes. Vector G-polygon 534 0.000458 0.000458 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 cb_2013_02_bg_500k.shp Current Census block group State-based entities U.S. Census Bureau STATEFP Current state Federal Information Processing Series (FIPS) codes U.S. Census Bureau National Standard Codes (ANSI INCITS 38-2009), Federal Information Processing Series (FIPS) - States/State Equivalents U.S. Census Bureau COUNTYFP Current county Federal Information Processing Series (FIPS) code U.S. Census Bureau National Standard Codes (ANSI INCITS 31-2009), Federal Information Processing Series (FIPS) - Counties/County Equivalents U.S. Census Bureau TRACTCE Current census tract code U.S. Census Bureau 000000 Water tract in some coastal and Great Lakes water and territorial sea U.S. Census Bureau 000100 to 998999 Census tract number U.S. Census Bureau BLKGRPCE Current block group number U.S. Census Bureau 0 Water block group U.S. Census Bureau 1 to 9 Census block group code U.S. Census Bureau AFFGEOID American FactFinder summary level code + geovariant code + '00US' + GEOID U.S. Census Bureau American FactFinder geographic identifier U.S. Census Bureau GEOID Census Block Group identifier; state FIPS code + county FIPS code + tract code + block group code U.S. Census Bureau 0 Water block group U.S. Census Bureau 1 to 9 Census 2000 block group code U.S. Census Bureau NAME Current county name U.S. Census Bureau National Standard Codes (ANSI INCITS 31-2009), Federal Information Processing Series (FIPS) - Counties/County Equivalents U.S. Census Bureau LSAD Translated legal/statistical area description code U.S. Census Bureau CT Census Tract U.S. Census Bureau ALAND Current land area (square meters) U.S. Census Bureau 0 9,999,999,999,999 square meters AWATER Current water area (square meters) U.S. Census Bureau 0 9,999,999,999,999 U.S. Department of Commerce, U.S. Census Bureau, Geography Division mailing

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Washington DC 20233-7400 United States 301.763.1128 geo.geography@census.gov No warranty, expressed or implied is made with regard to the accuracy of these data, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau in specific as to the spatial or attribute accuracy of the data. The act of distribution shall not constitute any such warranty and no responsibility is assumed by the U.S. government in the use of these files. The boundary information is for small-scale mapping purposes only; boundary depiction and designation for small-scale mapping purposes do not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions. SHP (compressed) The files were compressed using Linux-based Info-ZIP Zip 2.32. Files can be decompressed with PK-ZIP, version 1.93A or higher, WinZip or other decompression software packages. http://www.census.gov/geo/maps-data/data/tiger.html The online cartographic boundary files may be downloaded without charge. The cartographic boundary files contain geographic data only and do not include display mapping software or statistical data. For information on how to use cartographic boundary file data wcd ith specific software package users shall contact the company that produced the software 201404 U.S. Department of Commerce, U.S. Census Bureau, Geography Division/Cartographic Products Branch mailing

4600 Silver Hill Road

Washington DC 20233-7400 United States 301.763.1128 301.763.4710 geo.geography@census.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 8859part1 cb_2013_02_bg_500k.shp.xml eng