that looks like a lot of fun. I'm looking at trying out some of the Trans America Trail here in NC. looks similar to the route you have.
this guy isn't the original one, but he's mapped routes through NC which cross I-77 just north of where I am. I'm trying to plan some day rides for the routes between I77 and the NC/TN border.
https://sites.google.com/site/gpskev...-america-trail