Late spring and summer in the Smokies always means Little Yellow Stoneflies. There are different species, ranging in size from the big Golden Stones down to #18 but most commonly in the #12-#16 range. The following is one of my favorite patterns for this hatch. I like it for two reasons: it is easy to tie, and it floats very well. If you want to try it out, here is the recipe.
Hook: #16 TMC 100 or similar dry fly hook
Thread: Yellow 8/0
Body: Yellow Poly Yarn
Wing: Yellow Poly Yarn
Hackle: Light or Medium Dun, trimmed on the bottom
Lots of other great patterns work, but I'm about efficient, easy to tie patterns that still wear out the fish. Next time you are heading up to the Smokies, make sure and stay until evening and then tie one of these on. You'll be glad you did...