1976. 2012-05-23T19:45:53Z. 2012-06-07T16:55:01Z. Luft, Stanley Jeremie, 1927-. U.S. Geological Survey. English. Public. Kentucky, Robertson County, Henderson County, Bracken County, and Pendleton County.
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2. Geologic map of the Mason quadrangle, Grant and Harrison counties, Kentucky [cartographic material]
1976. 2012-05-21T12:33:37Z. 2012-06-07T16:53:40Z. Luft, Stanley Jeremie, 1927-. U.S. Geological Survey. English. Public. Kentucky, Grant County, and Harrison County.
