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Now showing items 21-30 of 227
Elkland-Tioga folio, Pennsylvania
(Geological Survey (United States), 1903)
Muscogee folio, Indian Territory
(Geological Survey (United States), 1905)
Nueces folio, Texas
(Geological Survey (United States), 1897)
Huron folio, South Dakota
(Geological Survey (United States), 1904)
Holyoke folio, Massachusetts-Connecticut
(Geological Survey (United States), 1898)
Watkins Glenn-Catatonk folio, New York
(Geological Survey (United States), 1909)
Stevenson folio, Alabama-Georgia-Tennessee
(Geological Survey (United States), 1895)
Winslow folio, Arkansas-Indian Territory
(Geological Survey (United States), 1907)
Marysville folio, California
(Geological Survey (United States), 1895)
Tazewell folio, Virginia-West Virginia
(Geological Survey (United States), 1897)