Just to echo what everyone else is saying.....pick one or the other.

If you look at native people before Europeans showed up, or even just look at any society, before or after metal....travelers generally didn't forage along the way. Even look at Lewis and Clark. You either spend your time hiking/walking, or you spend it looking for food. Most travelers that had to forage would have to stop for enough time to store up food until they had enough to go farther on their journey.

The AT is a heavily populated trail. Even if you had the time, it would be very difficult to forage enough.
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