Looking for loops in the smokies. Done the same trip with 2 different groups out of Cosby. Maddron Bald, Snake Den loop. I have most of the Backpacker Mag articles for trips there. Any suggestions here? 20-30 miles. 3-4 days. And yes the older has been asked by his buddies about next trip. Younger one will go with them

I'd let the boys plan it. What do they want to see and how hard do they want to hike? There are tons of good loops you could put together. I'd d/l their latest official trail map (to try to avoid reserved sites), and I found this site useful.