I think the regular topographical type maps work well- you can get them for about $11 at Nantahla Outdoor Center in Gatlinburg. This shop caters to hikers. You often need a map of hiking trails to get where you want- and all the streams are shown as well.
Put the trout back and eat at the Trout House in Gatlinburg.
One thing I do want to do sometime in the future is have a primitive camp "way back in there" like in the good old days. I wonder if any of the stables would run a packhorse back in there for you- for more "creature comforts".
I also get a kick out of using flies local to the area: yellowhammer wet, tellico nymph, greenie-weenie, thunderhead dry- the thunderhead floats well if you want to use a dry fly in fast water. An elk hair caddis is good and I use a variant- an elk hair emerger -#16- in tan, that is a floating nymph you can see well- and it has worked well.