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Birmingham folio, Alabama
(Geological Survey (United States), 1910)
Engineer Mountain folio, Colorado
(Geological Survey (United States), 1910)
Johnstown folio, Pennsylvania
(Geological Survey (United States), 1910)
Laramie-Sherman folio, Wyoming
(Geological Survey (United States), 1910)
Warren folio, Pennsylvania-New York
(Geological Survey (United States), 1910)