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Geological and sectional map of part of southern Illinois bordering on...
Public domain scan of a vintage map, plan, atlas, free to use, no copyright restrictions - Picryl description.
NYPL's Public Domain Archive. Not developed or endorsed by NYPL. Part of the World's largest public domain source PICRYL.com.
coal
coal mines and mining
geological cross sections
geological maps
geology
gibson co cincinnati ohio lithographer
historical maps manitoba
illinois
lionel pincus and princess firyal map division
saline coal