The Atlas of Historical County Boundaries is meant to be a resource for people seeking records of past events, and people trying to analyze, interpret and display county-based historical data like returns of elections and censuses, and for people working on state and local history projects. The special interests of those potential users range from history to demography, economics, genealogy, geography, law, and politics.
Mots-clés: Atlas, USA, États-Unis, Données, Shapefiles, KMZ, GIS, SIG, County Boundaries, local history, histoire locale,
