You searched for: Subject Aquifers Remove constraint Subject: Aquifers Subject Inland Waters Remove constraint Subject: Inland Waters Place United States Remove constraint Place: United States Place Delaware Remove constraint Place: Delaware 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.).