Drawn by G.M. Levette for the second annual report of Prof. E.T. Cox, state geologist , [geology by John Collett]. Shows worked coal, coal outcrops, iron ore, sandstone, limestone, and mills. Shows worked coal, coal outcrops, iron ore, sandstone, limestone, and mills. Detached from: Second report of the Geological Survey of Indiana, made during the year 1870 ... / E.T. Cox. Indianapolis: R.J. Bright, 1871.
Imprint: Indianapolis, Ind. : Geological Survey of Indiana, [1871]
Dimensions: on sheet 63 x 79 cm