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Stony Brook University

Geosciences

Covers select resources for geosciences research

Census Mapping

Various sites provide access to historical and current U. S. Census data and maps. They include:

National Historical Geographic Information System (NHGIS): includes aggregate and statistical data and boundary files for years between 1790 and 2000.

Social Explorer: The free edition offers demographic maps from 1790-2007.

EPA/FGDC

EPA – for maps and spatial data 

FGDC