You searched for: Author Geological Survey (U.S.) Remove constraint Author: Geological Survey (U.S.) Subject Boundaries Remove constraint Subject: Boundaries Institution Stanford Remove constraint Institution: Stanford Place New Jersey Remove constraint Place: New Jersey Place United States Remove constraint Place: United States Place Colorado Remove constraint Place: Colorado Format Shapefile Remove constraint Format: Shapefile 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.).