Tunnel Hill State Trail

The trail offers numerous access points along its 55-mile length. Vienna is a popular starting point, featuring a trail headquarters and visitor information. Other towns like Harrisburg, Stonefort, and Karnak also provide parking and access.

Yes, the trail is generally dog-friendly. However, always keep your dog on a leash and ensure you clean up after them to maintain a pleasant experience for all users.

Spring and fall are often considered the best times to visit due to milder temperatures and beautiful foliage. Spring brings wildflowers, while fall offers vibrant autumn colors. Summer can be hot and humid, especially in the exposed sections, but the forested areas provide shade.

No, there are no specific permits or entrance fees required to access the Tunnel Hill State Trail. It is part of the Illinois State Trail system, and while portions run through the Shawnee National Forest, general access to the trail is free.

The trail's namesake tunnel, a 543-foot former railroad tunnel, is a unique experience. It can be pitch black inside, so a flashlight or headlamp is highly recommended for safety and navigation. The tunnel offers a cool, cave-like atmosphere.

The trail primarily features a hard-packed crushed gravel surface, with some paved sections, particularly through towns. As a rail-to-trail conversion, it maintains a gentle 2% grade, meaning gradual inclines and declines. While generally flat, the surface can be uneven with larger rocks in places, requiring some balance.

Key highlights include the 543-foot long Tunnel Hill Trail – The Tunnel, and the impressive Trail’s Longest and Highest Trestle (Breeden Trestle) near Sandburn. You'll also pass through the Tunnel Hill – Vienna Trail Headquarters and various charming towns like Tunnel Hill to New Burnside and Tunnel Hill Trail - Stonefort.

While the trail has a gentle grade, its 55-mile length and crushed gravel surface contribute to a generally moderate difficulty rating for hiking. Beginners can enjoy shorter sections, especially those through towns or paved areas, but covering significant distances requires a moderate level of fitness and appropriate footwear.

Yes, the trail is part of a larger network. It connects with the River to River Trail, the Illinois southern route of the American Discovery Trail (ADT - Illinois (South) - J - Seg 2), and the U.S. Bicycle Route 76 (76 (Illinois)).

The scenery is incredibly diverse, ranging from shaded forests and woodlands, especially within the Shawnee National Forest, to wetlands in the Cache River State Natural Area with ancient cypress trees. You'll also pass through farmlands, prairies, and rocky ravines. Keep an eye out for wildlife such as turtles, deer, and various bird species.

Yes, several towns along the route offer amenities. You can find bathrooms, parking, drinking fountains, and opportunities for food and lodging in places like Vienna, Harrisburg, and Stonefort. Vienna is particularly well-equipped with a trail headquarters.