Prepared for the sixth annual report of E.T. Cox, State Geologist , geology by John Collett, 1874. Relief shown by hachures. Shows cities and towns, railroads, iron ore, quarries, gold diggings, and fruit farms. Detached from: Sixth annual report of the Geological Survey of Indiana, made in the year 1874. Indianapolis : Sentinel Company, 1875.
Imprint: [Indianapolis] : [Sentinel Company, printers], [1875]; Imprint: [Indianapolis] : [Geological Survey of Indiana], [1875]
Dimensions: on sheet 39 x 35 cm