Alum Cave Trail

Trail Overview

Alum Cave Trail is perhaps the most beloved hike in Great Smoky Mountains National Park. The trail packs incredible geological features, stunning views, and an optional summit push into one unforgettable experience. Most hikers choose to turn around at Alum Cave Bluffs (4.4 miles round trip), but the adventurous can continue to Mount LeConte's summit.

The trail is named for the massive overhanging bluff near the halfway point. Despite being called a "cave," it's actually a large concave bluff—80 feet high and 500 feet long—that provided shelter to early settlers and still impresses hikers today.

Three Hiking Options

Option 1: Arch Rock (2.8 miles round trip)

A moderate hike to the impressive natural rock arch formation. Perfect for families or those wanting a shorter adventure. The arch is formed by centuries of water erosion through slate rock.

Option 2: Alum Cave Bluffs (4.4 miles round trip)

The most popular turnaround point. The massive overhanging bluff is a dramatic geological feature worth the climb. This makes for a half-day adventure.

Option 3: Mount LeConte Summit (11 miles round trip)

The full experience—continuing past Alum Cave to the third highest peak in the Smokies. The upper trail features cable handholds, exposed cliffs, and LeConte Lodge at the summit. This is an all-day adventure.

Trail Highlights

Arch Rock (Mile 1.4)

A natural tunnel carved through massive slate rock by centuries of water erosion. Stone steps lead through the arch, which is large enough to walk through comfortably. This is the first major geological feature on the trail.

Inspiration Point (Mile 1.8)

A rocky overlook offering your first panoramic mountain views. On clear days, you can see Newfound Gap Road winding through the valleys below. A great spot for photos and a rest.

Alum Cave Bluffs (Mile 2.2)

The massive concave bluff that gives the trail its name. The overhang extends 80 feet high and 500 feet long, creating a dramatic natural shelter. Mineral deposits on the rock give it distinctive coloring. In winter, impressive icicles form from seeping water.

Beyond Alum Cave: The Summit Push

If you continue past Alum Cave, the trail becomes significantly more challenging:

• Cable handholds assist on exposed rock sections
• Narrow trails along cliff edges require careful footing
• Views become increasingly spectacular
• The final approach crosses rocky terrain to Cliff Tops

At the summit, you'll find LeConte Lodge (reservations required years in advance for overnight stays), a shelter, and multiple viewpoints including Cliff Tops and Myrtle Point.

Getting There & Parking

The trailhead is on Newfound Gap Road (US-441), about 8.5 miles from Sugarlands Visitor Center. The parking lot is one of the largest at any trailhead in the park, but it still fills early on weekends—often by 8 AM during peak season.

A parking permit ($5/day or $40/year) is required March through November. Consider arriving by 7:30 AM on weekends or visiting on weekdays.

What to Bring

• Water: At least 2 liters (3+ for summit hike)
• Sturdy hiking boots: Rocky, rooty trail with exposed rock sections
• Layers: Temperatures drop significantly at higher elevations
• Rain gear: Weather changes quickly in the mountains
• Headlamp: Essential if doing the summit and returning after dark
• Lunch and snacks
• Camera: Views are spectacular

Best Times to Visit

• Fall (October): Spectacular foliage and cooler temperatures
• Early morning: Best light and fewer crowds
• Weekdays: Significantly less crowded than weekends
• After rain: Waterfalls along the trail are more impressive

Avoid this trail during ice and snow unless you have proper traction devices—the rock sections become dangerous when icy.