Devil's Backbone Trail loop
Devil's Backbone Trail loop
3.1
(26)
42
runners
02:55
16.4km
1,190m
Running
Prepare for a challenging jogging experience on the Devil's Backbone Trail loop, a difficult route spanning 10.2 miles (16.4 km) with a significant 3888 feet (1185 metres) of elevation gain. This strenuous journey, estimated to take around 2 hours and 55 minutes, offers constant sweeping vistas from its exposed ridgeline. You will find yourself jogging along a distinctive narrow ridge with steep drop-offs, leading to the spectacular 360-degree panoramic views from the summit of Mount San Antonio, also known as Mt. Baldy.
This is not a casual jogging route; it demands very good fitness, sturdy shoes, and alpine experience due to its rugged and demanding nature. The trail becomes exceptionally dangerous in winter, often requiring mountaineering equipment because of ice and snow. Even during warmer months, you should exercise caution due to the exposed conditions and rugged terrain.
Located in the Angeles National Forest, the Devil's Backbone Trail is renowned for its immense views that make the effort worthwhile. On clear days, you can spot distant peaks like Mount San Gorgonio and Mount San Jacinto from the summit. The trail's unique geological formation, with its narrow backbone and steep slopes, sets it apart as a truly memorable and demanding adventure.
Last updated: April 23, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Sheep Mountain Wilderness
Waypoints
Start point
Parking
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1.86 km
Highlight (Segment) • Trail
Tip by
6.23 km
Highlight • Summit
Tip by
8.10 km
Highlight (Segment) • Trail
Tip by
16.4 km
End point
Parking
Way Types & Surfaces
Way Types
6.31 km
5.45 km
2.76 km
1.87 km
< 100 m
Surfaces
10.6 km
3.19 km
1.92 km
741 m
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Elevation
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Weather
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Monday 18 May
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2°C
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Max wind speed: 3.0 km/h
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This route was planned by komoot.
No, this trail is considered a "hard run" and is very strenuous, requiring excellent fitness, sure-footedness, and sturdy shoes. It is not recommended for beginners or casual joggers due to its rugged terrain, narrow ridgeline with steep drops, and sections of scree and steep switchbacks, especially as you approach the summit of Mount Baldy.
The terrain is rugged and demanding. You'll encounter a narrow, rising ridgeline with steep drop-offs on both sides, which can be challenging for those with a fear of heights. As you ascend towards the summit, the trail becomes steeper, featuring loose rock (scree) and numerous switchbacks. It requires careful footing throughout.
The best time to tackle this trail is during the warmer months, typically late spring through early fall. In winter, the trail becomes exceptionally dangerous due to ice and snow, often requiring mountaineering equipment and experience. Always check weather conditions before heading out, as conditions can change rapidly at higher elevations.
Yes, the Devil's Backbone Trail loop is located within the Angeles National Forest. A Forest Adventure Pass is typically required for parking at trailheads in the Angeles National Forest. You can purchase these passes at various vendors or ranger stations. Always verify current requirements before your visit.
The loop typically starts from Manker Flats, where parking is available. However, parking can fill up quickly, especially on weekends. While public transport options directly to the trailhead are limited, some visitors opt to use the Mount Baldy ski lift to reach Baldy Notch, which shortens the initial ascent to the start of the Devil's Backbone segment.
Generally, dogs are allowed on trails in the Angeles National Forest, including the Devil's Backbone Trail, but they must be kept on a leash. Given the strenuous and rugged nature of this particular trail, with narrow sections and steep drop-offs, it may not be suitable for all dogs, especially those not accustomed to challenging alpine conditions.
The trail is renowned for its spectacular and immense views. As you traverse the ridgeline, you'll enjoy sweeping vistas. From the summit of Mount San Antonio ("Mt. Baldy"), you'll get 360-degree panoramic views of the Angeles National Forest and the greater Los Angeles area. On clear days, you can even spot Mount San Gorgonio and Mount San Jacinto in the distance. The Devil's Backbone Trail itself, with its distinctive narrow ridgeline, is a notable feature.
Given the trail's difficulty, you should bring sturdy hiking shoes with good ankle support, plenty of water, sun protection (hat, sunscreen), layers of clothing as weather can change quickly, and a map/navigation device. Due to the exposed ridgeline and steep drops, those with a fear of heights should exercise extreme caution. Always inform someone of your plans before heading out.
Yes, the route incorporates several well-known paths. It includes significant portions of the Baldy Bowl (Ski Hut) Trail and the Devil's Backbone Trail. You'll also traverse sections of Baldy Road and Mt. Baldy Road, and smaller segments of trails like Register Ridge and Bear Canyon Trail.
Yes, you can take the Mount Baldy ski lift from the base to Baldy Notch. This significantly shortens the initial climb and allows you to start the more challenging Devil's Backbone segment directly from the Notch, saving considerable elevation gain and time on the lower sections of the mountain.
While specific wildlife sightings are never guaranteed, the San Gabriel Mountains are home to various species. You might spot deer, squirrels, and a variety of birds. Keep an eye out for raptors soaring above the ridgelines. Always observe wildlife from a distance and do not feed them.