JoeFred--That makes sense. I own the book (as well as pretty much everything else which has been published on Appalachia). The book is adequate but by no means definitive (which is to say it doesn't list all waterfalls, and that's especially true for those on small streams). A more detailed (but still far from complete) work for the N. C. side of the Park is Kevin Adams, "North Carolina Waterfalls."
Jim Casada
www.jimcasadaoutdoors.com