Dude, I just tried to do the Blue Ridge Parkway from Boone up into Virginia and it was a nightmare. The thing is closed at least every 10 miles for servicing, and the detours take you far out of your way. I went about 10 miles north only to come to a dead end and had to turn around at one point. It may be better south, but from Boone north was hell.
My trip here:
There, and (halfway) back again (Post 682512)]
Wow, awesome photos and nice write-up. Too bad about the belt.
I think you just had the misfortune of riding the wrong section of parkway. There are two closed sections and they happen to be right in the area you rode. The marked detours routed us around them quite nicely. We started at the souithern end in Cherokee, NC and finished at the northern end yesterday - 3 days on the parkway. We'll ride a different route back home as we are a day behind schedule and can make better time on highways (no interstates for us, though).