5.0
(2678)
16,165
riders
07:11
56.2km
2,170m
Mountain biking
The Mt. Wilson Enduro Loop is a difficult 34.9-mile mountain biking trail in Angeles National Forest with 7127 feet of elevation gain.
Last updated: February 26, 2026
Tips
Includes a very steep uphill segment
You may need to push your bike.
After 7.59 km for 429 m
Waypoints
Start point
Parking
Get Directions
42.7 km
Highlight (Segment) • Trail
Tip by
56.2 km
End point
Parking
Way Types & Surfaces
Way Types
25.3 km
16.8 km
6.58 km
3.82 km
3.61 km
111 m
Surfaces
19.1 km
13.5 km
8.89 km
6.96 km
5.77 km
1.92 km
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Elevation
Highest point (1,720 m)
Lowest point (150 m)
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Weather
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Today
Sunday 10 May
29°C
13°C
0 %
Additional weather tips
Max wind speed: 15.0 km/h
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This route was planned by komoot.
No, this loop is considered an advanced to expert-level mountain bike trail. It demands very good fitness and advanced riding skills due to its challenging terrain, technical difficulty, and significant 5,000-foot vertical descent. Riders should be prepared for dangerous exposure and tight switchbacks.
The terrain is diverse and demanding. The upper sections feature narrow paths, numerous switchbacks, loose rocks, and dirt, with potential washed-out areas and boulders. As you descend, the loose rock transitions to more solid, bumpy terrain. The lower parts smooth out, offering better flow, though some sections still have ruts and small jumps. It's a mix of singletrack, unpaved roads, and some paved segments. The decomposed granite composition means it can be tackier and more enjoyable after rain.
The Mt. Wilson Enduro Loop is most commonly ridden as a shuttle run. Services are often available from the JPL parking lot, which serves as a popular access point for shuttling to the summit. While climbing to the top is possible, it's a long and strenuous endeavor.
Generally, a Forest Adventure Pass is required for parking at many trailheads within the Angeles National Forest. It's always best to check the official Angeles National Forest website for the most current information on permits and fees before your visit.
The trail can be ridden year-round, but conditions vary. After rain, the decomposed granite terrain becomes tackier and more enjoyable. Be aware that weather and temperature conditions can differ dramatically from the cold and windy summit to the warmer base. Always check the forecast before heading out.
Riders are treated to spectacular vistas and stunning views throughout the ride, including panoramic views of Los Angeles from higher elevations. The Mt. Wilson Trail itself offers incredible scenery, and the Mt. Wilson Observatory sits at the peak, providing a significant landmark.
While dogs are generally allowed on trails in the Angeles National Forest, this specific trail is an advanced mountain biking route. Due to the technical difficulty, high speeds, and potential for busy lower sections with hikers, it is not recommended for dogs, especially off-leash.
Given the extreme difficulty and technical nature of the descent, it is strongly advised to wear a full-face helmet, elbow pads, and knee pads for protection. The trail features dangerous exposure and 'super sketchy' sections where extra protection is crucial.
Yes, the route intersects with several other trails. You'll encounter sections of the Rincon Red Box Truck Trail, Mount Wilson Toll Road, Mount Wilson Trail, Rim Trail, Van Tassel Motorway, and the Monrovia Canyon Truck Trail, among others.
Consider riding after a light rain. The decomposed granite composition of the trail means it becomes tackier and offers better grip, making the challenging descent more enjoyable and less prone to loose conditions. Also, be aware that the lower sections can be busy with hikers, especially on weekends, so ride considerately.