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1. Historical United States County Boundaries, 1790

Polygon Stanford University Restricted content
1790. Earle, Carville, Heppen, John, Otterstrom, Samuel, Cao, Changyong, and Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology. This polygon shapefile contains county boundaries for the United States in 1790. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.