You searched for: Subject Counties Remove constraint Subject: Counties Institution Stanford Remove constraint Institution: Stanford Place Arkansas Remove constraint Place: Arkansas Place Alabama Remove constraint Place: Alabama Place Kentucky Remove constraint Place: Kentucky Year 1980 Remove constraint Year: 1980
1980. Geological Survey (U.S.). This polygon shapefile contains the 1980 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).