TIGER/Line Shapefile, 2015, nation, U.S., Current American Indian/Alaska Native/Native Hawaiian Areas National (AIANNH) National Shapefile

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the
U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents
a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data
set, or they can be combined to cover the entire nation. The American Indian/Alaska Native/Native Hawaiian (AIANNH) Areas Shapefile includes the
following legal entities: federally recognized American Indian reservations and off-reservation trust land areas, state-recognized American Indian
reservations, and Hawaiian home lands (HHLs). The statistical entities included are Alaska Native village statistical areas (ANVSAs), Oklahoma tribal
statistical areas (OTSAs), tribal designated statistical areas (TDSAs), and state designated tribal statistical areas (SDTSAs). Joint use areas are also
included in this shapefile refer to areas that are administered jointly and/or claimed by two or more American Indian tribes. The Census Bureau
designates both legal and statistical joint use areas as unique geographic entities for the purpose of presenting statistical data. Note that tribal
subdivisions and Alaska Native Regional Corporations (ANRCs) are additional types of American Indian/Alaska Native areas stored by the Census Bureau, but
are displayed in separate shapefiles because of how they fall within the Census Bureau's geographic hierarchy. The State of Hawaii's Office of Hawaiian
Home Lands provides the legal boundaries for the HHLs. The boundaries for ANVSAs, OTSAs, and TDSAs were delineated for the 2010 Census through the Tribal
Statistical Areas Program (TSAP) by participants from the federally recognized tribal governments. The Bureau of Indian Affairs (BIA) within the U.S.
Department of the Interior (DOI) provides the list of federally recognized tribes and only provides legal boundary information when the tribes need
supporting records, if a boundary is based on treaty or another document that is historical or open to legal interpretation, or when another tribal,
state, or local government challenges the depiction of a reservation or off-reservation trust land.

           The boundaries for federally recognized American Indian reservations and off-reservation trust lands are as of January 1, 2013, as reported by the
           federally recognized tribal governments through the Census Bureau's Boundary and Annexation Survey (BAS).

           The boundaries for state-recognized American Indian reservations and for SDTSAs were delineated by a state governor-appointed liaisons for the 2010
           Census through the State American Indian Reservation Program and TSAP respectively.