Sal Hallow Trail is a 17.12-mile out-and-back foot trail in Mammoth Cave National Park, Kentucky. It climbs 591 ft to a high point of 795 ft. Difficulty: strenuous, from the NPS hiking-rating formula.
Open Sal Hallow Trail on Trailbound's interactive map to see the full route, the elevation profile, today's forecast and any park alerts for Mammoth Cave. Mammoth Cave has permits or reservations for some areas: see the Mammoth Cave page for what's needed.