National Geologic Map Database
Product Description Page
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Title: Surface-water-quality assessment of the upper Illinois River Basin in Illinois, Indiana, and Wisconsin -- results of investigations through April 1992
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Author(s): Schmidt, A.R., and Blanchard, S.F.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Water-Resources Investigations Report 96-4223
- Publication Date: 1997
- Map Scale: 1:1,250,000
- Cross Section: None
- North Latitude: 43° 7' 0" N (43.1167)
- South Latitude: 40° 28' 0" N (40.4667)
- East Longitude: 86° 0' 0" W (-86.0000)
- West Longitude: 89° 0' 0" W (-89.0000)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.