Getting off I-81 around Chilhowie, Exit 35, VA-107, Hwy 58 will take you up, down, around and thru the Mount Rogers Rec area. Very scenic, about 12 miles shorter, but takes nearly 15-20 minutes longer in a MOHO. I-81 to I-77 is an 11 mile longer, easier drive on cruise control with cheaper fuel available in Wytheville, VA. I like the scenic road better, but time isn't an issue, whereas exploration is.:)
RVn Full-time