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Start Over Year 1980 Resource Class Datasets Bounding Box -40.000931 39.999015 -39.999064 40.000987

1. County Boundaries of the United States, 1980

Datasets Stanford University Public content
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.).