Since the mtns run from the NE into northern GA and AL, they are hard to avoid, but you could swing west over to I-65 which looks to miss them. Like said above, after CO, the grades going over Jellico Mtn are just hills by comparison.
Larry, Beverly & Pat
Pups - Romeo, Teddy Bear, Frankie
2013 Thor Tuscany, 45', Freightliner chassis, Cummins ISL10, towing a Buick Enclave