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Now showing items 11-20 of 227
Knoxville folio, Tennessee-North Carolina
(Geological Survey (United States), 1895)
Raleigh folio, West Virginia
(Geological Survey (United States), 1902)
Chicago folio, Riverside, Chicago, Desplaines, and Calumet quadrangles, Illinois-Indiana
(Geological Survey (United States), 1902)
Spanish Peaks folio, Colorado
(Geological Survey (United States), 1901)
Kingston folio, Tennessee
(Geological Survey (United States), 1894)
Newcastle folio, Wyoming-South Dakota
(Geological Survey (United States), 1904)
Estillville folio, Kentucky-Virginia-Tennessee
(Geological Survey (United States), 1894)
Dover folio, Delaware-Maryland-New Jersey
(Geological Survey (United States), 1906)
St. Marys folio, Maryland-Virginia
(Geological Survey (United States), 1906)
La Plata folio, Colorado
(Geological Survey (United States), 1899)