Map showing selected subsurface dye traces in south-central Indiana
Frushour, Samuel S., Harper, Denver, Dintaman, Christopher R., and Sowder, Kimberly H.
Digital cartogrpahy by Kimberly H. Sowder.' Includes text, index map, location map, and 'Sources of subsurface dye trace information.' Scale 1:500,000. By Samuel S. Frushour, Denver Harper, and Christopher R. Dintaman.