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Now showing items 1-9 of 9
Pawpaw-Hancock folio, Maryland-West Virginia-Pennsylvania
(Geological Survey (United States), 1912)
Birmingham folio, Alabama
(Geological Survey (United States), 1910)
Barnesboro-Patton folio, Pennsylvania
(Geological Survey (United States), 1913)
Johnstown folio, Pennsylvania
(Geological Survey (United States), 1910)
Kenova folio, Kentucky-West Virginia-Ohio
(Geological Survey (United States), 1912)
Belleville-Breese folio, Illinois
(Geological Survey (United States), 1915)
Philipsburg folio, Montana
(Geological Survey (United States), 1915)
Murphysboro-Herrin folio, Illinois
(Geological Survey (United States), 1912)
Tallula-Springfield folio, Illinois
(Geological Survey (United States), 1913)