Search Constraints
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.
Subject
Counties
Remove constraint Subject: Counties
Place
Michigan
Remove constraint Place: Michigan
Year
1990
Remove constraint Year: 1990
1 entry found
Search Results
1. Historical United States County Boundaries, 1990
1990. 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 1990. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.