1965. 2011-12-19T19:16:05Z. 2012-03-05T17:26:13Z. Alvord, Donald C. (Donald Clayton), 1922-. U.S. Geological Survey. English. Public. Kentucky, Pike County, Floyd County, and U.S.
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1971. 2012-03-13T14:07:19Z. 2012-03-27T23:58:50Z. Alvord, Donald C. (Donald Clayton), 1922-. The Survey. English. Public. Pennsylvania, Pike County, Monroe County, New Jersey, and Warren County.
3. Geologic map of the Pikeville quadrangle, Pike and Floyd Counties, Kentucky [cartographic material]
1965. 2011-12-20T19:40:26Z. 2012-03-05T17:26:45Z. Alvord, Donald C. (Donald Clayton), 1922-. U.S. Geological Survey. English. Public. Kentucky, Pike County, and Floyd County.
1962. 2011-05-13T15:08:15Z. 2012-02-13T19:45:31Z. Alvord, Donald C. (Donald Clayton), 1922-. U.S. Geological Survey. English. Public. Kentucky and Pike County.
