National Geologic Map Database
General Information
- Title: Geologic maps of Hugo pegmatite and part of Keystone district, South Dakota
- Author(s): Norton, J.J.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Open-File Report OF-60-107
- Publication Date: 1960
- Map Scale: 1:10,000
- Cross Section: None
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.