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Twentymile Trail



5.2 mile 8.3 kilometer point to point


Ascent: 2,327' 709 m
Descent: 0' 0 m
High: 3,648' 1,112 m
Low: 1,321' 403 m


Avg Grade: 9% (5°)
Max Grade: 20% (12°)


No Dogs
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Trail shared by Max Willner

A 5.2-mile stretch that follows creeks from the Twentymile Ranger Station to the Shuckstack Tower.

Max Willner

Features Birding · Fall Colors · Spring · Wildflowers · Wildlife

Reservations must be made for backcountry campsites. For more information, the GSMNP backcountry office can be contacted at (865) 436-1297 between the hours of 8 and 5 Eastern Time. Backcountry permits can also be purchased online.


Twentymile Trail is part of the Benton MacKaye Trail, and connects to the Appalachian Trail (AT). It leads directly to the Shuckstack Fire Tower. Starting at the Twentymile Ranger Station, Twentymile Trail connects to both the Twentymile Loop Trail and Wolf Ridge Trail. If visitors follow the trail past the fork leading to Wolf Ridge Trail, they'll see a small side trail that leads to Twentymile Cascade.

Traveling from the ranger station and heading northeast, hikers will find themselves on a steady incline. Over the course of just over 5 miles, there will be an elevation gain of nearly 1,500 feet. While the first 3 miles of trail are generally gentle, there will be some strenuous climbing in the latter half.

Flora & Fauna

Flowering plants bloom between March and July. In the fall, leaves begin to change color around September and continue through November. Two of the most common trees in this area are the mountain laurels (Kalmia latinfolia) and umbrella magnolias (Magnolia tripetala).

As for local fauna, black bears are common in the area, along with white-tailed deer and 31 species of salamanders.

For more information on black bears in the Smokies, refer to this webpage.

Birdwatchers can spot a variety of species, notably the northern flicker (Colaptes auratus) and red-eyed vireo (Vireo olivaceus).

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Oct 18, 2019
Tracie Michalski
Trail is an old road which makes for easy climbing. Check out twenty mile cascade.
Jun 2, 2019
hiked from Long Hungry Ridge trail to Twentymile ranger station
Feb 9, 2019
Andreas Bastias
Carmella's birthday hike to Shuckstack Fire Tower. 11.9mi
Jan 8, 2019
Robert McDaniel
Aug 5, 2017
Mishelle Williams
Jun 20, 2017
Chadwick Conner
Jun 9, 2014
Chadwick Conner
Apr 20, 2006
Todd Rielage

Trail Ratings

  3.8 from 5 votes


in Twentymile


  3.8 from 5 votes
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One of six stream crossings near the beginning of the Twentymile Trail. Two of these small bridges are in a slight state of disrepair.
Mar 24, 2016 near Robbins…, NC
The first of six stream crossings near the beginning of the Twentymile Trail.
Mar 24, 2016 near Robbins…, NC
Long Hungry Ridge Trail north of Proctor Field Gap. with permission from Mike Lerch
Apr 1, 2016 near Robbins…, NC
Twentymile Trail near the Long Hungry Ridge Trail Junction. with permission from Mike Lerch
Mar 25, 2016 near Robbins…, NC


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