You searched for: Subject Inland Waters Remove constraint Subject: Inland Waters Subject Hydrogeology Remove constraint Subject: Hydrogeology Place Massachusetts Remove constraint Place: Massachusetts Place Connecticut Remove constraint Place: Connecticut Place Arizona Remove constraint Place: Arizona Place Maine Remove constraint Place: Maine Data type Polygon Remove constraint Data type: Polygon Format Shapefile Remove constraint Format: Shapefile Year 2003 Remove constraint Year: 2003
1. Principal Aquifers of the 48 Conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands
2003. Geological Survey (U.S.). Water Resources Division. Wisconsin District. This polygon shapefile contains the shallowest principal aquifers of the conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islan... Geological Survey (U.S.).