3.4
(9)
97
hikers
03:41
12.2km
400m
Hiking
The Twentymile Loop Trail offers a refreshing escape into the Great Smoky Mountains National Park, guiding you through a lush mixed hardwood forest filled with tulip trees and magnolias. You'll follow old logging roads and narrower paths, with the highlight being the numerous rushing streams and cascades, including the impressive Twentymile Creek Cascade. This moderate hike covers 7.6 miles (12.2 km) with 1309 feet (399 metres) of elevation gain, typically taking about 3 hours and 41 minutes, making it a rewarding half-day adventure for those seeking solitude and natural beauty.
Located in a more remote part of the park near Fontana Village, the trailhead offers parking, though arriving early is recommended, especially during peak seasons. The trail features well-maintained footbridges over creek crossings, simplifying navigation. While the dense tree cover limits wildflowers, the autumn months transform the forest into a spectacular display of fall colors, making it an ideal time for your visit.
Beyond its scenic beauty, the Twentymile Loop Trail holds historical significance, utilizing old railroad grades from 1920s logging operations. This area is known for its tranquility and offers a chance to spot wildlife like black bears and white-tailed deer. For backpackers, it also serves as a gateway to more remote park destinations such as Gregory Bald and the Shuckstack Fire Tower, providing a deeper connection to the park's wild heart.
Last updated: June 9, 2026
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Waypoints
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Parking
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908 m
Highlight (Segment) • Trail
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11.1 km
Highlight • Waterfall
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12.2 km
End point
Parking
Way Types & Surfaces
Way Types
12.2 km
Surfaces
12.2 km
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Elevation
Highest point (770 m)
Lowest point (430 m)
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The trailhead for the Twentymile Loop Trail is located in the remote Twentymile area of the Great Smoky Mountains National Park, near Fontana Village. There is a designated parking area at the Twentymile Ranger Station, which serves as the primary access point for this and other trails in the vicinity.
No, dogs are generally not allowed on hiking trails within the Great Smoky Mountains National Park, including the Twentymile Loop Trail. This policy is in place to protect both wildlife and pets. Pets are only permitted in campgrounds, picnic areas, and along paved roads.
The trail offers beauty year-round, but spring and fall are particularly rewarding. In spring, you'll find abundant wildflowers, while fall brings vibrant foliage. Birdwatching is popular during these seasons. Summer offers lush greenery and shade, while winter hiking conditions can vary, so check forecasts for snow or ice.
There are no entrance fees to enter Great Smoky Mountains National Park, so you do not need to pay to access the Twentymile Loop Trail. However, if you plan to park for more than 15 minutes at any trailhead or parking area within the park, a valid parking tag is required. These can be purchased online or at visitor centers.
Many hikers recommend hiking the extended loop clockwise. This means tackling the primary uphill section, often along the Wolf Ridge Trail portion, first. This approach makes the subsequent descent, particularly along the Twentymile Trail segment, generally easier and more gradual.
The Twentymile Loop Trail, which is approximately 12.2 kilometers (7.6 miles) long, typically takes around 3 hours and 40 minutes to complete. This duration can vary based on your pace, stops for photos, and trail conditions.
The terrain varies from wide, easy-to-walk sections on old railroad grades to narrower, more rugged paths with occasional roots and rocks. You'll encounter a mix of uphill and downhill sections, some moderately steep with switchbacks. Multiple creek crossings are present, many now featuring log bridges.
You'll experience picturesque streams and shady hardwood forests with diverse trees like tulip, maple, and oak. A major highlight is the Twentymile Creek Cascades, a long series of impressive waterfalls offering excellent photo opportunities. The trail also boasts seasonal wildflowers and vibrant fall foliage.
The diverse forest is home to various wildlife. Birdwatchers might spot species like the northern flicker and red-eyed vireo. Hikers should also be aware of the possibility of encountering larger mammals such as black bears and white-tailed deer, especially in the more remote sections.
Yes, the Twentymile Loop Trail is often part of a larger loop that combines sections of other paths. The route also passes through sections of the Twentymile Trail, Wolf Ridge Trail, and Long Hungry Ridge Trail, offering options for extended exploration.
While generally rated as moderate, some segments are considered easy with gentle climbs. The overall 7.6-mile loop is manageable for many hikers, though some parts can be moderately steep. Beginners with a reasonable level of fitness should find it enjoyable, especially if hiked clockwise.
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