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.
Creator:
Frushour, Samuel S., Harper, Denver, Dintaman, Christopher R., and Sowder, Kimberly H.