ncludes index map and 16 stratigraphic columns showing coal measurements. Plate LXVII. "Troy. Tell City." Detached from: Seventh annual report of the Geological Survey of Indiana, made in the year 1875. Indianapolis : Sentinel Company, 1876. Page 1280.Imprint: [Indianapolis] : [Sentinel Company, printers], [1876]; Imprint: [Indianapolis] : [Geological Survey of Indiana], [1876]Dimensions: on sheet 21 x 26 cmJPEGG4093.P2H9 1876 .T69engIndiana. Department of Geology and Natural ResourcesPublicMines and mineral resourcesGeologyCoalTownship 6 South, Range 3 WestMapsIndiana--Perry CountyIndiana1898Indiana University