Flint Mill Trail is an approximately 2.4 mile out-and-back trail in the Cherokee National Forrest. The trailhead is located on Flatwoods Road in Elizabethton, TN. The trail has a rather steep incline and is considered challenging. There is a 1,264 foot altitude change from the base to the top . The trailhead is marked by a brown post with a blue circle and the number #49. Once on the trail there are blue blazes to follow. After a strenuous hike, you come to Flint Rock, which overlooks South Holston Lake with 180 degree views.