You searched for: Publisher Geological Survey (U.S.) Remove constraint Publisher: Geological Survey (U.S.) Subject Geoscientific Information Remove constraint Subject: Geoscientific Information Place Massachusetts Remove constraint Place: Massachusetts Place Delaware Remove constraint Place: Delaware Place Arizona Remove constraint Place: Arizona
11. 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.).