North America

• Oak Ridges Moraine
  Oak Ridges Moraine
  The Oak Ridges Moraine is an ecologically important geological landform in the Mixedwood Plains of south-central Ontario, Canada. The moraine covers a geographic area of between Caledon and Rice Lake, near Peterborough...
  
   - North of Toronto Ontario
• Laurentian River System
  Laurentian River System (Ontario)
  The Laurentian River System is an ancient river in southern Ontario, Canada.The river predates the recent ice ages. The river valley was filled with glacial debris. Water still flows down this old valley -- underground...
  
  

• Biscayne Aquifer
  Biscayne Aquifer
  The Biscayne Aquifer, named after Biscayne Bay, is a surficial aquifer. It is a shallow layer of highly permeable limestone under a portion of South Florida...
  
  
• Bruceian Aquifer
• Eastern Snake River Plain Aquifer
  Eastern Snake River Plain Aquifer
  The Eastern Snake River Plain Aquifer north of the Snake River is a remarkable aquifer of great resource and economic significance. It is not a single homogeneous geologic formation. Rather it consists of a volcanic pile of the Quaternary Snake River Group basalts. In eastern Idaho, these basalts...
  
  
• Edwards Aquifer
  Edwards Aquifer
  The Edwards Aquifer is one of the most prolific artesian aquifers in the world. Located on the eastern edge of Edwards Plateau in the U.S. state of Texas, it discharges about of water a year and directly serves about two million people...
  
  
• Englishtown Aquifer
• Floridan Aquifer
  Floridan Aquifer
  The Floridan Aquifer is a portion of the principal artesian aquifer that extends into Florida and is composed of carbonate rock and located beneath the coastal regions of the Southeastern United States and is one of the world's most productive aquifers. It is under all of Florida as well as ...
  
  
• Great Miami Aquifer
• Kirkwood-Cohansey Aquifer
  Kirkwood-Cohansey aquifer
  The Kirkwood-Cohansey aquifer system is in the New Jersey Pine Barrens. It covers approximately and receives about 44 inches of precipitation each year. About fifty percent of this water is transpired by vegetation or evaporates back into the atmosphere. A small amount enters streams and rivers as...
  
  
• Lloyd Aquifer
• Magothy
  Magothy
  Magothy may refer to:Places*Magothy Bay Natural Area Preserve in Virginia*The Magothy Quartzite Quarry Archeological Site in MarylandRivers*The Magothy River in Maryland*The Little Magothy River in MarylandShips...
  
   - largest of Long Island's aquifers
• Mahomet Aquifer
  Mahomet Aquifer
  The Mahomet Aquifer is the most important aquifer in east-central Illinois. The sand and gravel aquifer is part of the buried Mahomet Bedrock Valley. It underlies 15 counties and ranges from 50 to 200 feet thick...
  
  
• Mt. Laurel-Wenonah Aquifer
• Ogallala Aquifer
  Ogallala Aquifer
  The Ogallala Aquifer, also known as the High Plains Aquifer, is a vast yet shallow underground water table aquifer located beneath the Great Plains in the United States...
  
  , also known as the High Plains Aquifer
• Ozark Plateau Aquifer
• Permian Sea
  Permian Sea
  The Permian Sea or Permian Basin is an underwater basin that is a remnant of an ancient ocean that existed during Permian times . It is entirely subterranean and spans an area about 480 km² across, running from eastern New Mexico to western Texas...
  
  
• Potomac-Raritan-Magothy Aquifer
• San Diego Formation
  San Diego Formation
  The San Diego Formation is a mostly sand, with rock layer from a former bay of San Diego of Late Pliocene age.Besides those of clams and other mollusks, quite a few bird fossils have been found in this geological formation. Among them is a possible ancestor of Cassin's Auklet and the loons Gavia...
  
  
• Sankoty Aquifer
  Sankoty Aquifer
  The Sankoty aquifer is an aquifer in the U.S. state of Illinois that provides groundwater to a number of communities in northwestern and central Illinois...
  
  
• Silurian-Devonian aquifers
• Spokane Valley-Rathdrum Prairie Aquifer

• Texcoco
  Lake Texcoco
  Lake Texcoco was a natural lake formation within the Valley of Mexico. The Aztecs built the city of Tenochtitlan on an island in the lake. The Spaniards built Mexico City over Tenochtitlan...
  
   aquifer, one of the most overexploited in the country

Europe

• Chalk Aquifer (England)
• Schwyll Aquifer
  Schwyll Aquifer
  Schwyll Aquifer was historically known as 'the Great Spring of Glamorgan'.Until recently, Welsh Water used the resurgence at the Schwyll Spring near Ewenny as the main source of water for the Bridgend area. It now functions as a backup supply and as such has a number of associated source protection...
  
   (Wales)
• Upper Rhine aquifer (France / Germany)