The is a popular Grade B arch (imperfect, pillar arch with less than 6-foot opening) on an official Class 1.1 trail (well-marked, nearly level, official trail that is over 1 mile long). There are a few dozen stairs at end of trail just before arch. Hidden Arch trail shares the parking lot with Silvermine Arch Trail as both start at the Koomer Ridge campground parking lot that is always busy and mostly full. A great feature of this hike is the very nice bathroom at the start of the trail. There is also a very large bathroom at the campground; which was important when my church took 50 boys on the Silvermine Arch hike.