Because no detailed digital mapping has been done for this county, this map is extracted from the state geologic map.
Frye, J.C., 1945, Geology and ground-water resources of Thomas County, Kansas, with analyses by Howard Stoltenberg: Kansas Geological Survey, Bulletin no. 59, 110 p. (out of print, available online)
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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