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You searched for: Publisher Geological Survey (U.S.) Remove constraint Publisher: Geological Survey (U.S.) Subject Boundaries Remove constraint Subject: Boundaries Subject Administrative and political divisions Remove constraint Subject: Administrative and political divisions Place United States Remove constraint Place: United States Year 1980 Remove constraint Year: 1980
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1. County Boundaries of the United States, 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.).