Publisher: U.S.Geological Survey - Yale University Library GeoBlacklight Search Results

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1. Geologic map of the Graham quadrangle, western Kentucky [cartographic material]

1968. 2012-02-20T19:37:59Z. 2012-03-06T15:52:00Z. Kehn, Thomas M. U.S.Geological Survey. English. Public. Kentucky, Muhlenberg County, Hopkins County, and Christian County.

2. Geologic map of the Lykens quadrangle, Dauphin, Schuykill, and Lebanon Counties, Pennsylvania [cartographic material]

1968. 2012-01-24T20:40:33Z. 2012-03-05T17:35:59Z. Trexler, J. Peter, 1926-. U.S.Geological Survey. English. Public. Pennsylvania, Dauphin County, Schuylkill County, and Lebanon County.