US Long-Term Ecological Research Network
DE expose
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DE filter
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Definition
A unique number assigned to Census Blocks concatenated from State County Tract and Block and Water fields from UA Census 2000 TIGER. The Census Bureau defines a block as the smallest geographic area for which the Bureau of the Census collects and tabulates decennial census data. Blocks are formed by streets roads railroads streams and other bodies of water other visible and cultural features and the legal boundaries shown on Census Bureau maps (US Census Bureau 1994).
Label
BLK00