The course is mostly runnable. There are a couple steep climbs but they’re all short. Really cool running along the rim for many miles. Terrain is typical for the area: roots, rocks, dirt…nothing too crazy. A few nice creeks, small bridges and even a waterfall/swimming hole right off the course.

2023 Marathon course GPX and mileage coming soon! It is exactly the same as the 25 mile loop except with a small, one-mile loop added near the end. Follow the link below to the gpx/map and zoom in to mile 23.75~. The Tom Pack Falls loop is what Marathoners will be doing that is different than the 50 and 100 mile runners. It’s one of the more unique and scenic sections of the course!