Parking
Use the signed Hiker Parking Area near the campground entrance, before the registration office. Walk into the campground to the Snake Den Ridge Trailhead near campsite B51; campsite spaces are for registered campers.

Great Smoky Mountains National Park, TN · NC
A steep 10.6-mile out-and-back to the Appalachian Trail.
Overview
Map & elevation
Plan your hike

The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Great Smoky Mountains Tour Guide
Parkwolf is a GPS audio tour guide for Great Smoky Mountains National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
See the Great Smoky Mountains audio tourRecorded for this trailhead
Cosby Picnic Area and Hen Wallow Falls“Up ahead is Cosby Picnic Area, a shady place for lunch beside Cosby Creek. Bring your own picnic; the tables have charcoal grills. The picnic area is seasonal, generally spring through fall.”
Plays as you drive up to this trailhead in the Parkwolf Great Smoky Mountains Tour Guide.
More stories near here in the app
Trail guide
Snake Den Ridge Trail is a strenuous 10.6-mile out-and-back from Cosby Campground to its junction with the Appalachian Trail. The climb is about 5.3 miles each way and gains roughly 3,300 feet on the way up. Its appeal is the changing forest, two creek crossings and a few views into Cosby Valley, not a long run of overlooks. Allow about eight hours. At the Appalachian Trail junction, turn around; continuing on the Appalachian Trail toward Deep Creek Gap adds a different hike.
Park in the signed Hiker Parking Area by the campground entrance, then follow the campground road to the trail sign near campsite B51. The route begins on a broad old gravel road through hardwoods. The small Williamson Cemetery is beside this lower stretch; at the road's turnaround, stay on the main foot trail as it narrows into the woods.
The trail crosses Rock Creek and later Inadu Creek. Earlier route descriptions place a footlog at Rock Creek and a rock hop at Inadu Creek, where small waterfalls sit just above and below the crossing. Those are natural crossings, and their condition can change. Wet rocks and a slick log make the climb harder; high water can make a crossing unsafe, so be ready to turn back. Do not count on creek water unless you can treat it.
After Inadu Creek, the grade steepens into long switchbacks. The lower hardwood forest gives way to heath, rhododendron and conifers as the route gains the ridge. A narrow opening looks across Cosby Valley toward Mount Cammerer's distant octagonal fire lookout. It's one of the few broad views on the hike; frame it with the ridge vegetation in the foreground. Farther up, the shaded forest closes in again.
The Maddron Bald Trail junction comes before the final climb to the Appalachian Trail. The Snake Den Ridge route ends at that junction; continuing on the AT is extra distance and leads into a different backcountry itinerary. The return follows the same 5.3-mile corridor, so save energy for the steep descent and creek crossings.
This is a long, steep hike with no short loop option on the named route. The campground has restrooms and seasonal drinking water near the start, but no store, and there is no reliable water service along the climb. Carry food and enough water for a full day. Pets are prohibited on this trail. Check current park notices before leaving, since streams and other backcountry conditions can change.
Wildlife
1,569 sightingsBlack BearMost seen around 7 PMSighting map
900 sightingsElkMost seen around 7 AMSighting map
13 sightingsBald EagleMost seen around 9 AMSighting map
142 sightingsTimber RattlesnakeMost seen around 6 PMSighting map
26 sightingsBobcatMost seen around 8 PMSighting map
42 sightingsRiver OtterMost seen around 7 AMSighting mapSighting maps show where each species has been reported across Great Smoky Mountains. Wildlife moves, so no sighting is guaranteed.
Keep exploring
ModerateSutton Ridge Overlook Trail3.5 mi · 2 hr · 0.2 mi awayA short, steep spur reaches a north-facing view over Riding Fork.
ChallengingMount Cammerer Trail11.1 mi · 7 hr · 0.2 mi awayA steep climb to a historic tower above the Smokies.
ChallengingLow Gap Trail5.4 mi · 5 hr · 0.2 mi awayCreek crossings and a steep climb to the remote Walnut Bottom junction.
ChallengingLow Gap, Appalachian Trail and Snake Den Ridge Loop Trail13.1 mi · 9 hr · 0.2 mi awayA full-day loop links Low Gap, the AT, and Snake Den Ridge.
EasyCosby Nature Trail1.3 mi · 45 min · 0.3 mi awayA wooded creek loop with log bridges and rocky crossings.
ModerateCosby Horse Trail0.3 mi · 10 min · 0.3 mi awayA short, steep path near Cosby Campground.
ChallengingLower Mount Cammerer Trail14.8 mi · 8 hr · 0.3 mi awayA long day of creek crossings and ridge climbing to the AT.
ModerateGabes Mountain Trail to Hen Wallow Falls4.3 mi · 3.5 hr · 0.3 mi awayA rooty 4.3-mile out-and-back ends at a steep 90-foot waterfall.
Campground · 0.2 mi awayCosby CampgroundA shady, tent-heavy base with hiking routes nearby.
Picnic area · 0.3 mi awayCosby Picnic AreaA shady 35-site picnic stop beside Cosby Creek
Sight · 1.6 mi awayHen Wallow FallsA 90-foot cascade makes the rooted climb worthwhile.
Sight · 2.8 mi awayMount Cammerer Lookout TowerA rock summit and a 1930s fire tower reward a big climb.
Scenic pullout · 4 mi awayCosby OverlookA short pullout with a southwest view over Cosby Valley.
Sight · 4 mi awayAlbright GroveA long hike through one of the Smokies’ finest old-growth forests.
Scenic pullout · 4.2 mi awayGreen Mountain OverlookA southeast-facing view worth timing for sunrise.
Sight · 4.5 mi awayMouse Creek FallsA 41-foot waterfall with Midnight Hole along the way.Parkwolf’s Great Smoky Mountains ranking