National Geologic Map Database
General Information
- Title: The quality of our Nation's waters -- water quality in the glacial aquifer system, northern United States, 1993-2009
- Author(s): Warner, K.L., and Ayotte, J.D.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Circular 1352
- Publication Date: 2015
- Map Scale: 1:25,000,000
- Cross Section: None
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Additional Resources
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- U.S. Geological Survey
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.