National Geologic Map Database
Title: Hydrologic Unit Map-1978, state of South Dakota
Author(s): U.S. Geological Survey
Publishing Organization: U.S. Geological Survey
Series and Number: Hydrologic Unit Map HU-41
- Publication Date: 1978
- Map Scale: 1:500,000
- Cross Section: None
- North Latitude: 45° 56' 46" N (45.9460)
- South Latitude: 42° 28' 37" N (42.4770)
- East Longitude: 96° 25' 55" W (-96.4320)
- West Longitude: 104° 2' 56" W (-104.0490)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.