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You searched for: Author Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology. Remove constraint Author: Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology. Access Restricted Remove constraint Access: Restricted Place North Carolina Remove constraint Place: North Carolina Place Illinois Remove constraint Place: Illinois Year 1820 Remove constraint Year: 1820
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1. Historical United States County Boundaries, 1820

1820. Earle, Carville, Heppen, John, Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology., Otterstrom, Samuel, and Cao, Changyong. This polygon shapefile contains county boundaries for the United States in 1820. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.