Devils Causeway and Chinese Wall Loop
Devils Causeway and Chinese Wall Loop
4.8
(8781)
8,782
runners
04:00
28.7km
1,000m
Running
Embark on the Devils Causeway and Chinese Wall Loop, a difficult jogging route that challenges you with 17.9 miles (28.7 km) of diverse terrain. You will gain a significant 3284 feet (1001 metres) in elevation, with an estimated completion time of 3 hours and 59 minutes. The trail features runnable…
Last updated: April 23, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Flat Tops Wilderness
Waypoints
Start point
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92 m
Highlight • Trail
Tip by
2.76 km
Highlight • Lake
Tip by
3.63 km
Highlight • Viewpoint
Tip by
12.9 km
Highlight • Trail
Tip by
16.0 km
Highlight (Segment) • Natural Monument
Tip by
28.7 km
End point
Way Types & Surfaces
Way Types
28.8 km
Surfaces
28.8 km
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Elevation
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Weather
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Today
Wednesday 20 May
4°C
-3°C
22 %
Additional weather tips
Max wind speed: 16.0 km/h
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This route was planned by komoot.
The loop typically starts and ends at the Trappers Lake Trailhead. Parking is available there, but it can get crowded, especially on weekends during peak season.
Yes, dogs are generally allowed on this trail within the Flat Tops Wilderness. However, it's crucial to keep them on a leash to protect wildlife and ensure a pleasant experience for all trail users. Given the challenging terrain, especially the narrow Devils Causeway, consider if your dog is comfortable with such conditions.
The best time to visit is typically from late June or early July through September, once the snow has melted and before the first heavy snowfalls. During this period, you'll find vibrant wildflowers and more stable weather. Be prepared for rapidly changing weather conditions at any time, and note that mosquito activity can be high in mid-summer.
As of current information, there are no specific permits or entrance fees required to hike or jog the Devils Causeway and Chinese Wall Loop within the Flat Tops Wilderness. However, always check the official U.S. Forest Service website (usda.gov) for any updates on regulations or fire restrictions before your trip.
This loop is considered difficult for jogging. While some sections offer runnable singletrack, much of the trail, particularly the flat top plateau, features uneven grass that can be tricky. The significant elevation gain of over 1,000 meters and the technical sections, especially the Devils Causeway, mean you'll likely be hiking parts of it. It's best suited for experienced trail runners prepared for mixed terrain.
The trail offers breathtaking 360-degree panoramas of the Flat Tops Wilderness. You'll pass by several beautiful lakes, including Little Trappers Lake, and enjoy a stunning View of Little Trappers Lake. The unique Devils Causeway is a major draw, and the five-mile-long Chinese Wall formation is also a beautiful feature.
The Devils Causeway is a very narrow ridge, as little as 3 to 4 feet wide, with sheer drops on both sides. It can be a scary prospect for those with a fear of heights and requires careful negotiation rather than jogging. It's an exposed feature, so assess your comfort level before attempting it.
The Flat Tops Wilderness, where this trail is located, is distinctive for its unique flattened basaltic domes, which were formed by past glaciation. This geological feature sets it apart from the more common jagged peaks found elsewhere in Colorado, offering vast rolling hills and picturesque mesas.
Given the trail's length, difficulty, and remote nature, it's essential to bring plenty of water, as refill opportunities can be scarce. Be prepared for rapidly changing weather with layers of clothing, and consider insect repellent due to potential high mosquito activity. Navigation tools are also recommended, as route finding can be challenging in some sections.
Yes, the route utilizes sections of several other trails within the Flat Tops Wilderness. You'll find yourself on parts of the Little Trappers Trail, Bear River Trail, Chinese Wall Trail, East Fork Trail, Devils Causeway Trail, and Carhart Trail, among others.
Route finding along the Chinese Wall can be challenging. While cairns and sticks often mark the path, it's advisable to carry a reliable map and GPS device. Pay close attention to the trail markers to stay on course, especially in areas with less distinct paths.