4.4
(5)
167
riders
12
rides
Mountain biking around East San Gabriel offers diverse landscapes, from urban green spaces to the rugged terrain of the San Gabriel Mountains. This region is characterized by its adjacency to the expansive San Gabriel Mountains, which provide a dramatic backdrop and extensive trail networks. The area features a blend of foothills, canyons, and river paths, catering to various outdoor enthusiasts.
Last updated: July 10, 2026
56.2km
07:11
2,170m
2,170m
The Mt. Wilson Enduro Loop is a demanding mountain biking route near Los Angeles, famous for its extensive downhill sections and technical challenges. You'll encounter a mix of flowy singletrackβ¦
1
riders
10.2km
01:11
340m
340m
The Lower Clamshell Truck Trail offers a diverse mountain biking adventure through the Monrovia Hillside Wilderness Preserve, blending wide fire roads with engaging singletrack. You'll navigate through canyons and encounterβ¦

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4.8
(6)
86
riders
21.2km
01:49
480m
480m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
31
riders
29.9km
03:06
1,140m
1,140m
The Ye Alpine Tavern ruins β Inspiration Point loop from Altadena offers a demanding mountain biking experience, tracing the historic path of the Mount Lowe Railway. You'll navigate a mixβ¦
14
riders
54.8km
05:52
2,090m
2,090m
The Mount Disappointment β Mueller Tunnel loop from Altadena is a demanding mountain bike ride that rewards your effort with incredible vistas. You'll navigate a mix of technical singletrack, fireβ¦
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Short tunnel on the eastern slope below San Gabriel Peak, part of the old Mt Lowe Motorway, that was never paved. The tunnel is very short, so you don't have to worry about bringing light. The road continues to the trailhead half a mile uphill.
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From this spot, you can see the observatory on Mount Disappointment, along with views of the San Gabriel Mountains and Valley.
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Henninger Flats sits along the road with views of Altadena. Youβll pass by it while climbing the Mt. Wilson Toll Road and can take a moment to catch your breath while enjoying the views. The route features a steady climb with minimal shade, so itβs best to start early, especially in summer. At the top, enjoy panoramic views of the San Gabriel Valley and explore the area, which includes a visitor center, picnic spots, and a tree nursery.
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For a ride with history and views, check out the Ye Alpine Tavern ruins in the San Gabriel Mountains. Once a popular mountain resort, it burned down in 1936 and was later demolished, but you can still spot the stone fireplace, foundation, and water tank.
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Andrea Wilson Triangle is a small protected area along Chaney Trail in Altadena. Though not a developed trail, itβs part of a larger effort to preserve open space and wildlife habitat in the foothills near Angeles National Forest.
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Mostly smooth fire road through Monrovia Hillside Wilderness, but with some steep and technical sections that might challenge beginners. Ride counterclockwise from Canyon Park and follow the signsβmany side trails cross private land. The descent includes tight switchbacks and a short singletrack section. You can stick to the main road or take the βadvancedβ trail, Cactus Road, for more climbs, exposure, and a fun technical finish.
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The road south creates a nice, fast, gradual descent from the north side of Altadena. Just be safe and keep an eye out for cross-traffic at the intersections.
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A short climb leads up to the Mt Wilson summit that's covered with telecommunications towers
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East San Gabriel offers 14 mountain bike trails, catering to various skill levels. These routes traverse diverse landscapes, from urban green spaces to the rugged terrain of the San Gabriel Mountains.
You can expect a mix of mountainous terrain, river paths, and diverse forest environments. The region is adjacent to the San Gabriel Mountains, providing challenging ascents and descents, alongside more moderate truck trails and dedicated paved paths like the Duarte Bike Trail.
While many trails in the San Gabriel Mountains are challenging, the region also offers easier options. For a gentler ride, consider the Duarte Bike Trail, a 1.6-mile shaded path suitable for families. Always check the specific trail details for difficulty before heading out with children.
The trails in East San Gabriel offer access to several interesting features. You might encounter the historic Mount Lowe Railway Ruins, offering a glimpse into the past. Natural highlights include the scenic Eaton Canyon Waterfall and the tranquil Bosque del Rio Hondo, abundant with wildlife.
The San Gabriel Mountains generally offer favorable year-round cycling weather. However, spring and fall often provide the most pleasant temperatures for mountain biking. Summers can be hot, especially at lower elevations, while winter may bring cooler temperatures and occasional rain or snow at higher altitudes.
Yes, East San Gabriel is known for its challenging mountain biking. The Mt. Wilson Enduro Loop is a difficult 34.9-mile route with significant elevation gain. Another demanding option is the Mount Wilson Summit Viewpoint β Mount Lowe Summit loop from Altadena, covering 55.5 miles with substantial climbing.
For a moderate experience, the Lower Clamshell Truck Trail is a popular choice. This 6.4-mile route offers a steady climb and descent through the foothills, typically completed in about 1 hour 11 minutes.
Yes, some routes provide unique perspectives of the urban landscape. The Wella's Peak β Pasadena Historic City Hall loop from Memorial Park is a 22.3-mile trail that leads through urban green spaces and offers city views.
The mountain bike trails in East San Gabriel are highly rated by the komoot community, with an average score of 4.5 stars. Riders often appreciate the diverse terrain, from challenging mountain ascents to scenic river paths, and the variety of options available for different skill levels.
Some areas within the Angeles National Forest, which includes parts of the San Gabriel Mountains, may require an Adventure Pass for parking at certain trailheads. It's advisable to check with the Angeles National Forest or San Gabriel Mountains National Monument authorities for the most current permit requirements before your ride. More information can be found on the National Park Service website: nps.gov.
Yes, many of the trails in East San Gabriel are designed as loops, allowing for a continuous ride back to your starting point. Examples include the challenging Mt. Wilson Enduro Loop and the scenic Ye Alpine Tavern ruins β Inspiration Point loop from Altadena.


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