Because no detailed digital mapping has been done for this county, this map is extracted from the state geologic map.
Ward, J.R., 1973, Geohydrology of Atchison County, northeastern Kansas: U.S. Geological Survey, Hydrologic Investigations Atlas HA-467, 2 sheets, scale 1:62,500
The Kansas Data Access and Support Center (DASC) has ArcInfo coverages available for this geologic data.
Cartographic Services, Kansas Geological Survey
Updated June 30, 2008
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