National Geologic Map Database
Product Description Page
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Title: Hydrologic Unit Map-1974, State of Iowa
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Author(s): U.S. Geological Survey
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Publishing Organization: U.S. Geological Survey
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Series and Number: Hydrologic Unit Map HU-15
- Publication Date: 1976
- Map Scale: 1:500,000
- Cross Section: None
- North Latitude: 43° 30' 0" N (43.5000)
- South Latitude: 40° 22' 23" N (40.3730)
- East Longitude: 90° 8' 46" W (-90.1460)
- West Longitude: 96° 37' 55" W (-96.6320)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.