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  • Tiger Maps
    US Census Bureau.  Tiger (Topologically Integrated Geographic Encoding and Referencing). The on-line mapping service creates a downloadable picture file map of any part of the U.S. You may select the location by entering a place name, zip code, or latitude and longitude. The service offers many alternatives for the features that will be shown: Congressional district lines, county borders, Indian reservations, highways, shoreline, water bodies, zip code points and more.  
    The Tiger map homepage provides information on the entire Tiger project.  The TIGER/Line files are a digital database of geographic features, such as roads, railroads, rivers, lakes, political boundaries, census statistical boundaries, etc. covering the entire United States. The data base contains information about these features such as their location in latitude and longitude, the name, the type of feature, address ranges for most streets, the geographic relationship to other features, and other related information. 
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  • FedStats
    US Federal Government.  Statistical information from 70 Federal agencies.
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  • Access to the Nation's Documents
    US Federal Government.  Provides access to congressional records, U.S. Code, Federal Register and many other federal documents.
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  • National Archeological Database
    The National Park Service provides access to GIS layers related to archeological data. This page allows you to see the density of a variety of archeological phenomena across the U.S.