Relief shown by contours and spot heights. Shows a "notable case of stream piracy, where by reversal of the drainage a new cycle of erosion is entrenched within an older one. Note the imminence of the diversion of Muddy Fork of Blue River at Old Pekin." "Fig. 25." Detached from: Handbook of Indiana geology, part 2 / by W. N. Logan, E. R. Cumings, C. A. Malott, S. S. Visher, W. M. Tucker, J. R. Reeves. Indianapolis : Wm. B. Burford, contractor for state printing and binding, 1922. Page 180.
Imprint: [Indianapolis] : [Wm. B. Burford, contractor for state printing and binding], [1922]
Dimensions: on sheet 29 x 34 cm; Scale: Approximately 1:62,000