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Paleotectonic investigations of the Permian system in the United States
Edwin Dinwiddie McKee, Steven S. Oriel, Henry L. Berryhill Jr., Eleanor J. Crosby, Donald A. Myers, George H. Dixon, Marjorie E. MacLachlan, Melville R. Mudge, Edwin K. Maughan, Richard Porter Sheldon, Earl R. Cressman, Thomas M. Cheney, Vincent E. McKelvey, Walter E. Hallgarth, Keith B. Ketner
1967, Professional Paper 515
No abstract available....
Some engineering geology problems at Mammoth Cave National Park, Kentucky
Frank W. Osterwald
1967, Open-File Report 67-173
The U.S. Geological Survey, at the request of the rational Park Service, participated in a field symposium May 22-26, 1967, at Mammoth Cave National Park, Kentucky. This symposium, held by the National Park Service, was to determine the applicability of the Wilderness Act of 1964 to underground and surface portions...