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Now showing items 261-270 of 280
Raritan folio, New Jersey
(Geological Survey (United States), 1914)
Franklin Furnace folio, New Jersey
(Geological Survey (United States), 1908)
Castle Rock folio, Colorado
(Geological Survey (United States), 1915)
Niagara folio, New York
(Geological Survey (United States), 1913)
Patoka folio, Indiana-Illinois
(Geological Survey (United States), 1904)
Eureka Springs-Harrison folio, Arkansas-Missouri
(Geological Survey (United States), 1916)
Tallula-Springfield folio, Illinois
(Geological Survey (United States), 1913)
Hot Springs folio, Arkansas
(Geological Survey (United States), 1923)
Globe folio, Arizona
(Geological Survey (United States), 1904)
Fairfield-Gettysburg folio, Pennsylvania
(Geological Survey (United States), 1929)