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To create compiled county-wide geologic and hydrogeologic units for OF-15-11, recent CGS geologic map GIS files or digitized USGS geologic maps were modified by the CGS, as needed. For this purpose, CGS staff included Peter E. Barkmann, Erin P. Johnson, and William M. Curtiss. |
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Recent CGS geologic map GIS files were used and/or modified by the CGS for OF-15-11, as needed. Also, pertinent geologic features were digitized by CGS from various USGS reports, professional papers, investigations, or field studies. Scans of original USGS paper maps were georeferenced into UTM, NAD83, zone 13. Features were digitized and attributed and modified using ArcMap 10.1 through 10.5. |
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Dakota Group outcrop belt |
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en-US |
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