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Now showing items 11-20 of 166
Newcastle folio, Wyoming-South Dakota
(Geological Survey (United States), 1904)
Dover folio, Delaware-Maryland-New Jersey
(Geological Survey (United States), 1906)
St. Marys folio, Maryland-Virginia
(Geological Survey (United States), 1906)
Elkland-Tioga folio, Pennsylvania
(Geological Survey (United States), 1903)
Muscogee folio, Indian Territory
(Geological Survey (United States), 1905)
Huron folio, South Dakota
(Geological Survey (United States), 1904)
Watkins Glenn-Catatonk folio, New York
(Geological Survey (United States), 1909)
Winslow folio, Arkansas-Indian Territory
(Geological Survey (United States), 1907)
El Paso folio, Texas
(Geological Survey (United States), 1909)
Independence folio, Kansas
(Geological Survey (United States), 1908)