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Federal
2015 Cartographic Boundary File, State-Alaska Native Regional Corporation for Alaska, 1:500,000
U.S. Census Bureau, Department of Commerce —
The 2015 cartographic boundary shapefiles are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File /... -
Federal
Collection TIGER/Line Shapefile, 2014,Series Information for the Current American Indian Tribal Subdivision (AITS) National Shapefile
U.S. Census Bureau, Department of Commerce —
American Indian tribal subdivisions are administrative subdivisions of federally recognized American Indian reservations/off-reservation trust lands or Oklahoma...