You searched for: Subject Administrative and political divisions Remove constraint Subject: Administrative and political divisions Place Oklahoma Remove constraint Place: Oklahoma Place Arizona Remove constraint Place: Arizona Year 1990 Remove constraint Year: 1990
1990. Geological Survey (U.S.). This polygon shapefile portrays the 1990 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).