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related to historic+base
2 + census
2 + counties
2 + data
2 + gis
2 + places
2 + shapefiles
2 + tracts
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Shapefiles and data at the census tract, county, state, and other geographic levels going back to 1790 for counties, and 1910 for tracts. Also includes some data for downloading.

belongs to BIG GIS Sources project
tagged base census counties data gis historic places shapefiles tracts by laallen ...and 1 other person ...on 19-JUN-08
Shapefiles and data at the census tract, county, state, and other geographic levels going back to 1790 for counties, and 1910 for tracts. Also includes some data for downloading.
belongs to Historic Preservation Data project
tagged GIS base census counties data historic places shapefiles tracts by laallen ...and 1 other person ...on 29-NOV-07