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Now showing items 21-30 of 75
La Plata folio, Colorado
(Geological Survey (United States), 1899)
Nueces folio, Texas
(Geological Survey (United States), 1897)
Holyoke folio, Massachusetts-Connecticut
(Geological Survey (United States), 1898)
Stevenson folio, Alabama-Georgia-Tennessee
(Geological Survey (United States), 1895)
Marysville folio, California
(Geological Survey (United States), 1895)
Tazewell folio, Virginia-West Virginia
(Geological Survey (United States), 1897)
Chattanooga folio, Tennessee
(Geological Survey (United States), 1894)
Jackson folio, California
(Geological Survey (United States), 1894)
Nomini folio, Maryland-Virginia
(Geological Survey (United States), 1896)
Pocahontas folio, Virginia-West Virginia
(Geological Survey (United States), 1896)