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  • Map of Indiana showing county boundaries, township and range lines
  • Geologic map of the 1¬¨‚àû x 2¬¨‚àû Fort Wayne quadrangle, Indiana, Michigan, and Ohio, showing bedrock and unconsolidated deposits
  • Map Knox and Gibson Counties, prepared for the 5th Annual Report of Prof. E.T. Cox. 1873. Geology by Prof. John Collett.
  • Survey of part of the coal fields in T.3 N., R.7.W., Daviess County, Indiana
  • Map of Southwestern Indiana showing areas strip mined for coal
  • Map of Warren County, Indiana
  • Distribution, structure, and mined areas of coals in Spencer County, Indiana
  • Map of northern Posey County, Indiana, showing structure on Springfield Coal Member (V) of the Petersburg Formation (Pennsylvanian)
  • Map showing location of industrial sand, marl, peat, mineral wool, cement, and lime operations in Indiana
  • Map of southwestern Indiana showing locations of surface and underground coal mines