You searched for: Author Otterstrom, Samuel Remove constraint Author: Otterstrom, Samuel Subject Boundaries Remove constraint Subject: Boundaries Place California Remove constraint Place: California Place United States Remove constraint Place: United States Data type Polygon Remove constraint Data type: Polygon Year 1930 Remove constraint Year: 1930
1930. 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 1930. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.