Highway 52 across northern Middle TN to its terminus is a very nice, scenic route. Especially the section between Livingston and Jamestown. Very scenic and twisty. The 297 road between Jamestown and Oneida is OK, with one fun section as it drops down 700 feet into and out of the river gorge of the Big South Fork. Several switchbacks going in and out. Right before the river on 297 is Bandy Creek Campground, an excellent national park campground that has water/electric hookups and the cleanest bathhouses I have ever seen.