1981. 2012-02-03T17:53:34Z. 2012-03-05T17:38:55Z. Patchen, Douglas G. West Virginia Geological and Economic Survey. English. Public. West Virginia. Devonian.
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1962. 2018-05-29T18:49:14Z. 2018-05-29T18:49:14Z. West Virginia Geological and Economic Survey. West Virginia Geological Survey. English. cartographic image. Public. West Virginia and West Virginia.
1958. 2018-05-04T19:56:22Z. 2018-05-04T19:56:22Z. Haught, Oscar L. West Virginia Geological and Economic Survey. English. cartographic image. Public. West Virginia, Wirt County, Roane County, Calhoun County, Wirt County (W. Va.), Roane County (W. Va.), Calhoun County (W. Va.), U.S., Calhoun County., Roane County., and Wirt County.
1970. 2018-05-29T18:46:45Z. 2018-05-29T18:46:45Z. Cardwell, Dudley H. West Virginia Geological Survey. English. cartographic image. Public. West Virginia and West Virginia.
1976. 2018-05-29T18:42:35Z. 2018-05-29T18:42:35Z. Cardwell, Dudley H., cartographer. West Virginia Geological and Economic Survey. English. cartographic image. Public. West Virginia and West Virginia.
1968. 2018-05-01T19:11:10Z. 2018-05-01T19:11:10Z. Haught, Oscar L. West Virginia Geological and Economic Survey. English. cartographic image. Public. West Virginia, Ohio County, Brooke County, Hancock County, Northern Panhandle, Ohio County (W. Va.), Brooke County (W. Va.), Hancock County (W. Va.), Northern Panhandle (W. Va.), Brooke County., Hancock County., Northern Panhandle., and Ohio County.
1976. 2018-05-29T18:37:34Z. 2018-05-29T18:37:34Z. Cardwell, Dudley H., cartographer. West Virginia Geological Survey,Williams & Heintz Map Corporation. English. cartographic image. Public. West Virginia and West Virginia.