4.7
(17)
591
riders
24
rides
Mountain biking around South Pasadena offers a compelling blend of urban convenience and natural beauty, situated at the western end of the San Gabriel Valley. The region is characterized by the Arroyo Seco, a significant natural feature with trails winding through lush landscapes and steep canyon walls. South Pasadena is known for its abundant tree canopy, featuring native California species, and diverse terrain ranging from easy paths to challenging routes with significant elevation gains.
Last updated: April 28, 2026
6
riders
23.6km
02:14
560m
560m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
89
riders
23.2km
02:23
650m
650m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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4.8
(4)
89
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
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
14
riders
54.8km
05:52
2,090m
2,090m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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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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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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The Gabrielino Trail spans 28.8 miles in the heart of Angeles National Forest, featuring a mix of well-known and secluded areas. This scenic route is perfect for running and boasts historical importance as well. In 1970, it became the first National Recreation Trail (NRT) in the country, honored for its regional representation, support of a diverse community, and recognition as one of America's finest trails.
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A short climb leads up to the Mt Wilson summit that's covered with telecommunications towers
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There are over 20 mountain bike trails around South Pasadena, offering a diverse range of experiences. Most of these routes are rated as difficult, providing a challenge for experienced riders, but there are also a few easy and moderate options available.
While many trails around South Pasadena are challenging, there are a couple of easier options. The El Prieto Trail loop from Altadena, though rated difficult overall, has sections that are more accessible. For a truly gentle ride, the Arroyo Seco Bike Path offers a paved, flat experience, perfect for families or those looking for a relaxed outing.
Mountain biking around South Pasadena offers diverse terrain. You'll find trails winding through lush landscapes and steep canyon walls, particularly in the Arroyo Seco corridor. The region also features dirt and fire roads, especially in areas like Mt. Wilson, with routes offering significant elevation gains and requiring advanced riding skills. The abundant tree canopy, featuring native California species, adds to the scenic charm.
Yes, many of the mountain bike routes around South Pasadena are designed as loops. For example, the challenging Wella's Peak β Pasadena Historic City Hall loop from Memorial Park covers nearly 36 km, while the Ye Alpine Tavern ruins β Inspiration Point loop from Altadena is another popular option, extending almost 30 km through the San Gabriel Mountains.
The trails often provide inspiring views of the rugged San Gabriel Mountains. You might encounter historical points like the old Mt. Lowe Railway path. For specific attractions, consider routes that pass near the Historic Colorado Street Bridge or the Eaton Canyon Waterfall. The Arroyo Seco itself is a significant natural feature, offering scenic beauty.
Many trails in the South Pasadena area, especially those within the Arroyo Seco corridor and surrounding natural parks, are generally dog-friendly. However, it's always best to check specific trail regulations before heading out, as leash laws and access rules can vary. Ensure your dog is well-behaved and can handle the terrain.
South Pasadena generally enjoys a mild climate, making mountain biking enjoyable for much of the year. Spring and fall offer pleasant temperatures, ideal for longer rides. Summers can be hot, so early morning or late afternoon rides are recommended. Winters are typically mild, though occasional rain can make trails muddy, so checking conditions before you go is advisable.
Absolutely. South Pasadena is well-known for its challenging mountain bike routes. The Mount Wilson Summit Viewpoint β Mount Lowe Summit loop from Altadena is a particularly demanding route, covering over 55 km with significant elevation gain. Other difficult options include the Wella's Peak β El Prieto Trail loop from Altadena, which offers challenging climbs and panoramic views.
The mountain bike trails around South Pasadena are highly rated by the komoot community, with an average score of 4.8 stars from over 27 reviews. Riders often praise the diverse terrain, the challenging climbs, and the beautiful natural scenery, especially within the Arroyo Seco and San Gabriel Mountains foothills.
While directly on mountain bike trails, you might not encounter large lakes, the region does have several. The Silver Lake Reservoir and Debs Lake are notable bodies of water in the broader area, offering scenic spots that could be incorporated into a longer ride or visited as a separate excursion.
Parking availability varies by trailhead. Many popular access points, especially those near Altadena or within the Arroyo Seco parks, offer designated parking areas. It's advisable to research specific trailheads in advance to confirm parking options and any potential fees or restrictions.
Yes, the Arroyo Seco Bike Path, a 2.1-mile concrete path running between South Pasadena and northeast Los Angeles, offers views of the Los Angeles skyline. While it's a paved path rather than a rugged mountain bike trail, it provides a unique perspective of the city amidst the natural surroundings.


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