Trailhead: Park in the designated hiker parking area at Cosby Picnic Area (near the entrance to Cosby Campground). Then backtrack on foot approximately 100 yards along the road to the signed start of the Gabes Mountain Trail.
Once you hit the trail you’ll start ascending towards the northern section of Snake Den Mountain. The trail, which is rugged at times, passes through beautiful forests, with hemlocks and yellow poplars creating a nice, shady canopy. After passing over Rock Creek, hikers will reach Messer Gap. From here continue heading straight, but just past this junction look to your left. An old rock wall from a homestead can be seen.
Around the 2 mile mark you will begin the descent on a side trail which leads to the base of Hen Wallow Falls. A wooden sign is posted at the turn of the side trail, making it easy to find. Hen Wallow Falls is only two feet wide at the top but expands to almost 20 feet at its base.
At 90 feet, Hen Wallow Falls ranks among the tallest in The Great Smoky Mountains National Park. Only Ramsey Cascades and Mingo Falls are higher.