Feature Catalog for the 2016 Current Tribal Block Group National Shapefile The Current Tribal Block Group National contains attributes for a tribal block group. This is a cluster of census tabulation blocks within a single tribal census tract delineated by American Indian tribal participants or the Census Bureau for the purpose of presenting demographic data on their reservation and/or off-reservation trust land. 2016 2016-06-01 eng utf8 TBG.shp Current Tribal Block Group National false AIANNHCE Current American Indian/Alaska Native/ Native Hawaiian area census code. Legal federally recognized American Indian area code. Range Domain Minimum: 0001 Range Domain Maximum: 4999 TTRACTCE Current tribal census tract code Range Domain Minimum: T00000 Range Domain Maximum: T98999 TBLKGPCE Current tribal block group letter J Blank K Blank A to H Blank GEOID Tribal block group identifier; a concatenation of Current American Indian/Alaska Native/Native Hawaiian area census code, tribal census tract code, and tribal block group letter Unrepresentable_Domain: The GEOID attribute is a concatenation of the Current American Indian/Alaska Native/Native Hawaiian area census code, followed by the tribal census tract code, followed by the tribal block group letter. No spaces are allowed between the two codes. The Current American Indian/Alaska Native/Native Hawaiian area census code is taken from the "AIANNHCE" attribute. The tribal census tract code is taken from the "TTRACTCE" attribute. The tribal block group letter is taken from the "TBLKGPCE" attribute.Current American Indian/Alaska Native/Native Hawaiian Area census code found in AIANNHCE, Current tribal census tract code found in TTRACTCE, tribal block group letter found in TBLKGPCE NAMELSAD Current translated legal/statistical area description and the tribal block group letter IB Tribal Block Group MTFCC MAF/TIGER feature class code G2410 Tribal Block Group ALAND Current land area (square meters) Range Domain Minimum: 0 Range Domain Maximum: 9,999,999,999,999 AWATER Current water area (square meters) Range Domain Minimum: 0 Range Domain Maximum: 9,999,999,999,999 INTPTLAT Current latitude of the internal point Range Domain Minimum: -90.000000 Range Domain Maximum: 90.000000 INTPTLON Current longitude of the internal point Range Domain Minimum: -180.000000 Range Domain Maximum: 180.000000