Cartographic Products Management Branch 20000101 vector digital data http://www.census.gov/geo/www/cob/na1990.html There are both legal and statistical American Indian, and Alaska Native entities for which the U.S. Census Bureau provides data for Census 2000. The legal entities consist of federally recognized American Indian reservations and off-reservation trust land areas, the tribal subdivisions that can divide these entities, state recognized American Indian reservations, and Alaska Native Regional Corporations. The statistical entities are Alaska Native village statistical areas, Oklahoma tribal statistical areas, tribal designated statistical areas, and state designated American Indian statistical areas. Tribal subdivisions can exist within the statistical Oklahoma tribal statistical areas. In all cases, these areas are mutually exclusive in that no American Indian, or Alaska Native can overlap another tribal entity, except for tribal subdivisions, which subdivide some American Indian entities, and Alaska Native village statistical areas, which exist within Alaska Native Regional Corporations. In some cases where more than one tribe claims jurisdiction over an area, the U.S. Census Bureau creates a joint use area as a separate entity to define this area of dual claims. The cartographic boundary files are a generalized extract from the U.S. Census Bureau's TIGER database. Line simplification/smoothing was performed with a tolerance of 0.005 decimal degrees and a coordinate reduction using the Douglas-Peucker method with a tolerance of 0.0003 decimal degrees. Very small polygons were eliminated when the combination of geographic codes existed elsewhere. The geography was clipped back to the shoreline of the United States, in contrast to TIGER/LineŽ which shows the full extent of geography out to the 3-mile limit. These generalized cartographic boundary files are originally produced to support the spatial geographic infrastructure for certain mapping functions within the Census Bureau's American Fact Finder and in support of the LandView Geographic Data Viewer. The generalized files have a much smaller file size than the original file extraction from the Census Bureau's TIGER database, resulting in faster download and processing times. 19900101 publication date Complete As needed 172.46087000 -65.22152710 71.34294128 17.88511467 ISO 19115 Topic Categories boundaries None Cartographic Boundary generalized government boundaries Alaska statistical Village Native ANVSA American Indian Reservation American Indian Off-Reservation Trust Land Oklahoma Tribal Statistical Area State Designated American Indian Statistical Area Tribal Designated Statistical Area American Indian Tribal Subdivision FGDC Framework Themes FWGOVERNMENTALUNITS None United States Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware DC Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming None The boundaries in this file are for statistical purposes only. They do not represent legal boundaries. U.S. Census Bureau, Geography Division, Geographic Products Management Branch mailing

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Upper Marlboro Maryland 20772 US 301-763-1128 301-457-4710 tiger@census.gov 7am - 5pm EST http://www.census.gov/geo/www/maps/CP_Contact.htm 20030514 U.S. Census Bureau, Geography Division, Cartographic Products Management Branch Cartographic Products Management Branch Metadata Coordinator mailing

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Washington DC 20233-7400 US physical

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Upper Marlboro Maryland 20772 US 301-763-1101 301-457-4710 zachariah.meade.turner.iii@census.gov 7am - 5pm EST http://www.census.gov/geo/www/maps/CP_Contact.htm FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998