Search Constraints
You searched for:
Author
Otterstrom, Samuel
Remove constraint Author: Otterstrom, Samuel
Subject
Boundaries
Remove constraint Subject: Boundaries
Subject
Counties
Remove constraint Subject: Counties
Place
California
Remove constraint Place: California
Data type
Polygon
Remove constraint Data type: Polygon
Year
1940
Remove constraint Year: 1940
1 entry found
Search Results
1. Historical United States County Boundaries, 1940
1940. 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 1940. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.