National Geologic Map Database
General Information
- Title: Summary of ground-water hydrology of the Cambrian-Ordovician aquifer system in the northern midwest, United States
- Author(s): Young, H.L.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Professional Paper 1405-A
- Larger Work: Regional aquifer-system analysis - Northern Midwest
- Publication Date: 1992
- Map Scale: 1:6,000,000
- Cross Section: None
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