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Johnstown folio, Pennsylvania

Phalen, William Clifton, 1877-1949. (Geological Survey (United States), 1910)

Ellijay folio, Georgia-North Carolina-Tennessee

La Forge, Laurence, 1871-1954.; Phalen, William Clifton, 1877-1949. (Geological Survey (United States), 1913)

Kenova folio, Kentucky-West Virginia-Ohio

Phalen, William Clifton, 1877-1949. (Geological Survey (United States), 1912)