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Esri, USGS | Esri, FAO, NOAA, USGS | The BIA Indian Lands dataset’s spatial accuracy and attribute information are continuously being updated, improved and is used as the single authoritative land area boundary data for the BIA mission. This data are available through the Bureau of Indian Affairs, Office of Trust Services, Division of Land Titles and Records, Branch of Geospatial Support.
Please feel free to contact us at 1-877-293-9494 geospatial@bia.gov