I forget if there is an "Arnold" trail which crosses the AT around the Bigalows (Maine) or if there is a plaque or just a mention in a guide book, but I think most thru hikers are aware somehow that Benedic Arnold and his men passed through those mountain before them.
Here is link talking about Arnold's Expedition written by a past president of the MATC. The link has some intersting pictures if you give them time to load, and comments on how Carry Ponds and the Great Carrying Place got their names.
http://www.pressherald.com/news/stat...27arnold.shtml