Variant title: Geological map of Indiana, revised and corrected. 1 map and 2 sections on 1 sheet. Shows county seats, townships, towns & post offices, railroads, creeks, and coal measures. Includes columnar section showing the exposed strata of the state and a geological cross section across the state north of and near the Ohio & Mississippi Railway. Patton and Gray described as follows: In the 14th annual report, for 1884, a similar map, marked "revised and correct" adjusted these differences and added accuracy and detail to the present Ordovician-Silurian boundary at places in southeastern Indiana. Detached from: Geology of Indiana / John Collett, et al. Fourteenth annual report. Part first, geology and natural history. Indianapolis, IN: Indiana Department of Geology and Natural History. Annual Report 14th pt. 1st. 1884. Indianapolis : Wm. B. Burford, 1885. Imprint: Indianapolis : [Indiana Department of Geology and Natural History], [1885]; Imprint: Indianapolis : Wm. B. Burford, [1885] Dimensions: 85 x 63 cm; Scale: Approximately 1:570,240. 9 miles to the inch
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