My sister is planning a spring break backpacking trip somewhere on the AT in late March. She did the smokies last year, which I didn't suggest, and did fine. I recall there being a loop through the Grayson Highlands that I was going to suggest. I was wondering about the mileage and difficulty of this loop? Is it possible to pull off in a week for a novice backpacker? I would assume that Mt Rogers or Sundog would sell some sort of map of this loop.