{ "currentVersion": 10.91, "id": 13, "name": "2000 Census Blocks (Census/TIGER)", "type": "Feature Layer", "description": "Census Block - Census 2000 (Maryland) - The TIGER/Line Shapefiles are an extract of all geographic areas for which the Census Bureau tabulates data and a selected set of attributes associated with each geographic feature. The TIGER Boundary data within the SDE database boundaries are extracts 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. The files also contain attribute information about these features, such as names, the type of feature, address ranges for most streets, the geographic relationship to other features, and other related information.--------------------------------------Census 2000 Geography------------------------------------\nCensus 2000 geography is the geographic extent of legally defined geographic areas or statistical areas in effect on January 1, 2000. This vintage enables users to work with Census 2000 data using boundaries as they existed in 2000. Since 2000, the Census Bureau initiated significant operations to improve the coordinate accuracy of our geographic database-the MAF/TIGER Accuracy Improvement Project or MTAIP. The MTAIP modified the base coordinates of virtually all the features in the database, thus the representation of Census 2000 geography will not match the representation depicted in the Census 2000 TIGER/Line files. The inventory and attributes of the 2000 census geography is, however, unchanged. 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