Chastain, R.A., Struckoff, M.A., Grabner, K.W., Stroh, E.D., He, H., Larsen, D.R., Nigh, T.A., and Drake, J., 2006, Mapping vegetation communities in Ozark National Scenic Riverways: Final technical report to the National Park Service, U.S. Geological Survey Open File Report, 2006-1354, [various pagings], (91480)