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1938. 2018-05-01T19:09:22Z. 2018-05-01T19:09:22Z. West Virginia Geological and Economic Survey. West Virginia Geological Survey. English. cartographic image. Public. West Virginia, Ohio County, Brooke County, Hancock County, West Virginia., Brooke County., Hancock County., and Ohio County.
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.
1966. 2018-05-04T19:33:27Z. 2018-05-04T19:33:27Z. West Virginia Geological and Economic Survey. West Virginia Geological Survey. English. cartographic image. Public. West Virginia, U.S., and West Virginia.