Shows towns, railroads, coal and iron ore, mills, furnaces, and stone quarries. "For the first annual report of Prof. E.T. Cox, State Geologist." Detached from: First annual report of the Geological Survey of Indiana ... 1869. Indianapolis : Alexander M. Conner, 1869. Imprint: [Indianapolis] : [Alexander M. Conner], [1869] Dimensions: 61 x 71 cm; Scale: Approximately 1:85,000