At head of title: Plate C. Shows streams, pits, and earthwork [Indiana Adena Square?] with measurements. Detached from: Eighth, ninth, and tenth annual reports of the Geological Survey of Indiana, made in the years 1876-77-78. Indianapolis : Indianapolis Journal Company, State printers, 1879. Page 220. Imprint: [Indianapolis] : [Indianapolis Journal Company, State printers], [1879]; Imprint: [Indianapolis] : [Geological Survey of Indiana], [1879] Dimensions: on sheet 14 x 21 cm; Scale: Approximately 1:6,000. 1 inch = 500 ft.