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Now showing items 31-40 of 68
Pueblo folio, Colorado
(Geological Survey (United States), 1897)
McMinnville folio, Tennessee
(Geological Survey (United States), 1895)
Fredericksburg folio, Virginia-Maryland
(Geological Survey (United States), 1894)
Monterey folio, Virginia-West Virginia
(Geological Survey (United States), 1899)
Standingstone folio, Tennessee
(Geological Survey (United States), 1899)
Bristol folio, Virginia-Tennessee.
(Geological Survey (United States), 1899)
Fort Benton folio, Montana
(Geological Survey (United States), 1899)
Boise folio, Idaho
(Geological Survey (United States), 1898)
Anthracite-Crested butte folio, Colorado
(Geological Survey (United States), 1894)
Sacramento folio, California
(Geological Survey (United States), 1894)