Well US-411 is quite a bit east of Cleveland TN. But from US-64 south into GA it will be 2 lanes. North of Eton GA the 4 lane start back and it is 4 lanes again to well south of Chatsworth GA. Then 2 lanes again almost to Cartersville GA and I-75. I don't recall any real hills, you are traveling parallel with the mountains. But this isn't flat land.
2018 Silverado 3500 DRW
2011 Montana Mountaineer 285RLD