Geologic periods for the State of West Virginia using 1968 geologic map and FGDC USGS (2006) coloring scheme.
* Quaternary
* Pennsylvanian/Permian
* Pennsylvanian
* Mississippian
* Devonian
* Silurian
* Ordovician
* Cambrian
None
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{'Title': 'West Virginia Geologic Map (Era-Periods)', 'Author': 'John M. Bocan - cartographic compiler', 'Comments': 'The West Virginia Geologic Map (era-periods) based on the original 1968 map and using the FGDC USGS (2006) coloring scheme.', 'Subject': 'The West Virginia Geologic Map (era-periods) based on the original 1968 map and using the FGDC USGS coloring scheme', 'Category': '', 'AntialiasingMode': 'None', 'TextAntialiasingMode': 'Force', 'Keywords': 'geology,geologic periods'}
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