Image: PresidentialCounty1968Colorbrewer

Description: Presidential election results by county (1968). Colors based on Colorbrewer 2.0.
Title: PresidentialCounty1968Colorbrewer
Credit: Own work. Original shapefile downloaded from: Minnesota Population Center. National Historical Geographic Information System: Version 2.0. Minneapolis, MN: University of Minnesota 2011. http://www.nhgis.org
Author: http://www.nhgis.org derivative work: Tilden76
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