The total elevation difference for this wilderness trail is 977 feet which is a lower than average number. Of course, this is an overnight hike, 2.5 days normally, so better have big a backpack to fit all the stuff you need. This is a long great outdoors trail, so don't forget to pack enough supplies. Round The Mountain Trail is 15.4 miles long; it's longer than many hiking trails. Round The Mountain Trail is a one trailhead wilderness trail, so you're looking at an in and out trek. There's not much difference in elevation along Round The Mountain Trail, so you get pretty much the same conditions along the whole hiking trail.