Search Constraints
You searched for:
Subject
Boundaries
Remove constraint Subject: Boundaries
Subject
Administrative and political divisions
Remove constraint Subject: Administrative and political divisions
Institution
Stanford
Remove constraint Institution: Stanford
Place
Puerto Rico
Remove constraint Place: Puerto Rico
Place
Alaska
Remove constraint Place: Alaska
Year
1980
Remove constraint Year: 1980
1 entry found
Search Results
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.).