Map and Geography Library
About the Digital Resources
TIGER (Topographically Integrated Geographic Encoding and Referencing )
TIGER is a system and digital data base developed at the Bureau of Census. Contains digital versions of census map features that can be matched with the 1990 statistical census data.
Census Transportation Planning Package (CTPP)
The CTPP is a set of special tabulations of 1990 census data tailored to meet the data needs of transportation planners.
ArcUSA provides maps for the lower 48 US states and counties, rivers, roads, cities, etc. Also has 1990 and earlier demographic attributes for states and counties.
Wessex U.S. Streets & Boundaries
Wessex provides loading software and TIGER files from the Census Bureau, converted to the ArcInfo format
Illinois Geographic Information System
Contains datasets developed by various state agencies or derived from US Geological Survey and US Bureau of the Census data files.